Laminar Flow Diffusers - Pathwayspathways.mx/wp-content/uploads/2017/08/A-Laminar-Flow.pdfLaminar flow panels discharge air at a uniform velocity and create an air shower or air piston

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table of contents

C R I T I CAL E N V I R O N M E NT

Anemostat’s pioneering efforts to provide air distribution solutions to today’s health care, aerospace, food processing, pharmaceutical,research, clean room, and semi-conductor facilities began over 50 years ago. From research and exhaustive laboratory testing,coupled with significant application experience, Anemostat continues to lead the way in providing effective solutions with innovativeproducts designed for specific environmental requirements.

Anemostat’s air distribution strategies address, in addition to comfort, particle & contaminant control meeting the functionalrequirements of the space utilizing a diverse array of products.

The Original Multi-Vent® Laminar FlowPanel with Dual Chamber Design

Description. . . . . . . . . . . . . . . A-9Performance Data. . . . . . . . . A-12Features at a Glance . . . . . . . A-17Specifications . . . . . . . . . . . . A-35

Laminar Flow Panel with EconomicalSingle Chamber Design

Description . . . . . . . . . . . . . A-22Performance Data . . . . . . . . A-24Features at a Glance . . . . . . A-28Specifications. . . . . . . . . . . . A-35

MV-1

MV-2

Laminar Flow HEPA Filter Module

Description . . . . . . . . . . . . . A-18Performance Data . . . . . . . . A-20Features at a Glance . . . . . . A-21Specifications. . . . . . . . . . . . A-35

MV-HEP

PAGE . . . . . . . . . . . . . . . . . . A-4

Applications

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A-3C R I T I CAL E N V I R O N M E NT

Filter Monitoring System

Description . . . . . . . . . . . . . A-31Specifications. . . . . . . . . . . . A-36

Light Alert

High Efficiency Filters for AnemostatFilter Module Products

Description . . . . . . . . . . . . . A-31Specifications. . . . . . . . . . . . A-36

Magna-Pak

Custom, pre-fabricated T-bar grid system

Description . . . . . . . . . . . . . . . . A-29Specifications . . . . . . . . . . . . . . A-36

THD-1500

Blank Off panel for T-bar grid systems

PAGE . . . . . . . . . . . . . . . . . . A-32

MVB

Trim Strips for Surface Installed Products

PAGE. . . . . . . . . . . . . . . . . . . A-33

Battens

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laminar flow applications


LAMINAR FLOW: GENERALConventional vs. Critical Space Applications

With human comfort in mind, conventional air distributionstrategies typically employ rapid mixing of supply and room airfor thermal equalization and effective ventilation (or ventilation

efficiency), with low air velocities within the occupied zone fordraft free conditions (figure 1) Because mixing of air is desirable, turbulent flow is preferred.Although thermal comfort is important within critical spaces,airborne particle control is often the basis for the application ofair distribution systems in these spaces. Control refers to themanagement of the quantity, type/size, and location of particles,and is dictated by the space function. In these cases,entrainment of room air with the clean, supply air is notdesirable and specialized air distribution devices must beconsidered.

What are Particles?

Particles can exist as bacteria (Tuberculosis, Legionnaire’sdisease), viruses (chicken pox, measles), pollen, skin flakes, hair,dust, live or dead organisms, lint, etc. Particles may beconsidered contaminants when they negatively influence aprocess, procedure, or human / animal physiology. Sources ofexternal microbial contaminants in a space include the supply airto the space or infiltration through room openings from otherspaces. These are easily controlled with air filtration and spacepressurization. Internal sources include equipment and people.Research indicates that in hospital operating rooms the surgicalteam and their activities contribute the greatest quantity ofcontaminants to the space. Considering this continuous streamof contaminants is being shed over and around the operatingtable, air distribution strategies for these spaces musteffectively carry away particles to minimize surgical siteinfections.

Measuring Particles

Space cleanliness is often quantified using Federal Standard209 that specifies particulate cleanliness classes and measuresthe number and size of particles per cubic foot of air sampled inthe space (graph 1 & table 1). For example, the semiconductorindustry typically requires Class 100 or cleaner, meaning nomore than 100 particles/ft3 of a size .5µm and larger.

AIR SUPPLY

PRIMARYAIR STREAM

ENTRAINED AIR ENTRAINED AIR

Figure 1: Conventional Mixing System

PARTICLE SIZE, µM

PARTICLES / FT3

.1 .2 .5 1 2 51

10

100

1000

104

510

106

CLASS 100,000

CLASS 10,000

CLASS 1,000

CLASS 100

CLASS 10

CLASS 1

Class 0.1 µm 0.5 µm 5.0 µm1

10100

1,00010,000

100,000

---765700

35345

3,45034,500

345,0003,450,000

Max # of particles per ft3 of air @diameters equal / larger than shown

110

1001,000

10,000100,000

Graph 1: FS209 Class Limits

Table 1: FS209 Class Limits

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applications


LAMINAR FLOW CONCEPTS

Laminar Flow

Laminar or streamline airflow is defined as airflow in which theentire body of air moves with steady, uniform velocity alongparallel flow lines with a minimum of eddies – a piston-likedelivery of air.

Air Piston Flow

Laminar flow distribution panels consist of thousands of smallholes per square foot. The small air jets exit each hole, movingparallel to each other to form an air piston. As the individual jetscoalesce, the edge of the air piston actually necks inward a bitwithin the first few inches from the panel, and expands outwardas the piston travels downward.

Boundary Mixing

Laminar flow panels discharge air at a uniform velocity andcreate an air shower or air piston that moves in free space withedge boundary effects occurring between the column of clean,supply air and the surrounding room air. The perimeterboundary is not stationary, but moves downward in a turbulentmanner. It is at the boundary layer where mixing occurs, andsurrounding particulate is entrained into the air stream.

Cooling Differential

Surprisingly, the cooling differential (supply air and room airtemperature difference) has very little influence on the airvelocity and projection distance downward. This is because themass of cooler, supply air constituting the laminar piston withinits boundary layer, exhibits nearly a zero vertical temperaturedifference, and consequently, no buoyancy effects due to airdensity.

Panel Free Area

The laminar panel open perforated area has little impact uponthe sound level and projection distance when considering holeswith relatively small diameters. Increased momentum due tomass and velocity increase is discernable only within a fewinches of the panel only (10-40 hole diameters).

BOUN

DARY

MIX

ING

AIR PISTON

∆T =

0

PERIMETER NECKING

•

•

Photo 1: Flow pattern from (3) 24" x 48" MV-2 Laminar Flow Panels.

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LAMINAR FLOW STRATEGIESLaminar flow one-pass systems (sometimes referred to as “plugflow”) are used to bathe an area in a clean, continuous showerof filtered air. The laminar panel is designed to minimize mixing(non-aspirating), while providing a unidirectional air stream thatis perpendicular to a perforated panel. Particle control isachieved by removing the particles from the source, and awayfrom a defined critical area. Air distribution systems for particlecontrol will typically consist of horizontal laminar flow, verticallaminar flow, or a hybrid system of vertical laminar flow coupledwith perimeter air curtains.

Horizontal Laminar Flow Systems

Horizontal flow applications (figure 2) with installed wall systemscommonly provide one pass, unidirectional flow in spaces utilizedfor sensitive processes or activities, and where turbulent eddiesor whirlpools caused by obstructions have been evaluated anddeemed acceptable. Inherent benefits of these systems includenearly unidirectional flow from the wall supply air outlets to theopposing wall air exhaust or returns, easy monitoring andreplacement of final filters, and the physical installation ofequipment. Consideration must be given to upstream-downstream relationships with respect to particle flow, and thefact that critical work envelopes in series with each other maybe affected. Horizontal flow may also be considered to treatsmall, bench top work envelopes.

Vertical Laminar Flow Systems-Entire Ceilings

Vertical flow applications with active laminar panels filling theentire ceiling provides complete wall to wall coverage of thespace by bathing the entire space with clean air, and is the bestarrangement for many clean space applications (figure 3). The orientation of laminar panels above the critical workenvelope typically provides the most direct, unobstructed path ofairflow. This approach requires high air change rates, and maynot be practical for certain applications due to cost orinstallation constraints. Vertical hanging curtains (figure 4) or other partition materials may be utilized to create a “micro”clean space within a larger space to achieve the benefits ofcomplete ceiling coverage but at a lower operating cost.

CRITICALWORK

ENVELOPE

Figure 3: Vertical Laminar Flow, Entire Ceiling

PERIMETERHANGINGCURTAINS

CRITICALWORK

ENVELOPE

Figure 4: Vertical Hanging Curtains

PARTICULATEFLOW

UPSTREAM TODOWNSTREAM

CRITICALWORK

ENVELOPE

Figure 2: Horizontal Laminar Flow

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applications


Vertical Laminar Flow Systems- Limited Ceiling Array

Vertical flow applications consisting of an array of ceiling laminarflow panels strategically located just over the critical workenvelope are often utilized in operating/surgical suites andsimilarly critical areas in health care facilities (figure 5). It is generally accepted that a properly installed and operatedsystem, providing a clean source of supply air, will reduce theincidence of infections due to airborne contaminants.Contaminant control within health care facilities varies by space,but the operating or surgical suite is by far the most aseptic(control of bacterial growth within acceptable limits). Thisarrangement is preferred where an entire ceiling array is notpractical, but can still require high air change rates based onthe size of the treated area. Because of mixing at the boundaryof the air piston, the perimeter of laminar flow panel arrayshould be sized to extend beyond the critical work envelope by atleast 6" (figures 5 & 6).

Hybrid Systems - Vertical Laminar Flow with PerimeterCurtains (Anemostat AORTA System)

Hybrid air distribution systems have evolved utilizing the benefitsof laminar systems as described above, and ideally include acontinuous perimeter air curtain around an interior laminar flowpanel or array of panels, essentially creating a “space within aspace” (figure 7). Because particles enter the laminar flow airstream at the boundary of the stream by entrainment, aircurtains (angled outward from 5-15°) are utilized as a buffer toisolate the critical work envelope. The perimeter curtain reducesthe quantity of particles entering the laminar flow field from thesurrounding, less clean air. The interior “cube” formed by the aircurtains maintains a positive pressure relationship compared tothe exterior or surrounding area outside the air curtains,resulting in high to low pressure particle movement. The totalsupply air quantity for the space is typically proportioned with a2:1 ratio - 1/3 for the central laminar flow field, and remaining2/3 for the perimeter curtains. These systems typically requirelower overall air change rates for the space, with higher airchange rates resulting in the cube within the air curtain.

RETURN / EXHAUST GRILLESA minimum of two grilles or registers located low in the sidewalls at least 3” above the floor typically on opposite sides of theroom is recommended (figure 7). Particulate movement fromthe critical envelope down along the floor and out of the spacerepresents the shortest path for removal. The air quantityextracted from the space through these grilles will determinethe room pressure and the pressure relationship of the spacewith respect to adjacent spaces, either positive (exfiltration orflow out of the space to an adjacent space), negative (infiltrationor flow into the space from an adjacent space), or neutral.Guidelines for space pressure are published by ASHRAE, AIA,CAN/CSI, and other code authorities based on space function.

RETURNGRILLES

RETURNGRILLES

RECI

RCUL

ATIN

GPA

RTIC

ULAT

E

MODEL MVCPERIMETER

AIR CURTAINS

MODEL MVCPERIMETERAIR CURTAINS

LAMINARFLOW PANELS

INTERIOR CUBE

Vt ≥ 50 FPM

BOUNDARYMIXING

AORTA SIZE

Figure 7: Anemostat AORTA System

6" MIN.

CRITICALWORK

ENVELOPE

BOUNDARYMIXING

Figure 5: Laminar Flow Panel Ceiling Array

CRITICALWORK

ENVELOPE

BOUNDARYMIXING

ENTRAINEDPARTICULATE

Figure 6: Critical Work Envelope Contamination

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DESIGN FACTORSDesign factors pertinent to equipment selection and placementinclude:

Sound level / Room NC – refer to ASHRAE handbooks forrecommended space sound levels. Air outlet sound levels can beadequately controlled by selecting an appropriate neck size for areasonable duct velocity. The additive sound of multiple inlets andoutlets should also be considered.

Total supply air quantity (CFM) – this is determined byconsidering both the required air change rate and space coolingloads. The air change rate is often the determinant. AirChanges per Hour (ACH) is the time rate at which the room airis replaced based on total supply air quantity into the space androom volume. Table 2 reflects guidelines from ASHRAE and theAIA (American Institute of Architects) regarding ventilation ratesfor various space functions in health care facilities. To calculateCFM, the required total supply air to a space:

CFM = ( V x ACH ) / 60

where:

V = room volume, ft3ACH = air changes per hour

For example, a 4000 ft3 room volume assuming 25 air changesper hour (25 ACH) requires about 1,670 CFM into the space.

Special modes of operation should be considered which mayrequire higher air flow rates and cooling differentials. This mayinclude procedures such as cardiac surgery.

Critical Work Envelope (CWE) – the location within the roomidentified as a zone of significant influence on a process orprocedure taking place, as compared to other envelopes withinthe same room. In surgical suites, this includes the patient andsurrounding team.

Projection Distance – the required distance, in feet, resulting ina velocity at that distance to effectively remove particulate awayfrom the CWE. In surgical suites, this is the distance from thelaminar flow panels in the ceiling down to about 6” above the

operating table. There has been considerable debate regardingthe ideal terminal velocities in the critical work envelope forhospital operating rooms to minimize SSI (surgical site infections)and control contaminants. Past recommendations of the CDC(Centers for Disease Control and Prevention) and HICPAC(Healthcare Infection Control Practices Advisory Committee)have suggested 60-100 fpm over the operating field. New AIA(American Institute of Architects) and NIH (National Institute ofHealth) guidelines are recommending velocities of 25-35 fpm.The recommendations of these organizations are based on thelatest and most current research available, and may change asnew research becomes available. Anemostat’s Multi-Vent® seriesof laminar flow panels have been designed for flow uniformity atboth low and high terminal velocities as recommended by theseagencies.

Laminar Panel Active Area – the size of an array of laminarpanels required to cover the critical work envelope with an airpiston of sufficient velocity to effectively carry away particulates.For applications with laminar flow panels only, the array shouldextend at least 6” beyond the edge of the critical work envelope.

Supply Air Temperature Differential (∆T) – the differencebetween the actual space temperature and the supply airtemperature. With space heating and cooling loads, the supplyair must be warmer or colder than the design set point of thespace. Applications requiring heated supply air require specialattention as laminar flow air distribution is designed to performwith isothermal or cold supply air systems only.

Obstructions – laminar flow air streams are disrupted fromtheir paths by obstructions such as lights, IV poles, and otherancillary equipment. Priority should be given to maintainingunobstructed flow during design. Obstructions are inevitable andthe preferred arrangement is to include the obstruction entirelywithin the perimeter of the CWE to keep turbulent eddies totallywithin the clean air column. Particulate that strikes an object willtypically move around and be carried away from it within the airstream.

Heat Sources – equipment and surgical teams create thermalplumes that oppose the direction of the laminar air stream toflush away particles. These sources should be located sufficientlywithin the CWE, or completely outside the CWE.

Operating Room (100% Outside Air) 15 15Operating Room (Recirc Air) 25 5 15 3Delivery Room (100% Outside Air) 15 15Delivery Room (Recirc Air) 25 5 15 3Recovery Room 6 2 6 2Nursery Suite 12 5 6 2Trauma Room 12 5 15 3Patient Room 4 2 6 2Intensive Care 6 2 6 2Protective Isolation 15 2 12 2Infectious Isolation 6 2 12 2Labor/delivery/recovery/postpartum 4 2 6 2Bronchoscopy 10 2Exam RoomTreatment Room

6 2 6 -6 2 6 -

Space FunctionASHRAE American Institute of Architects (AIA)

Minimum Total Air Changes / Hr (ACH)

Minimum Outside Air Changes / Hr (ACH)

Minimum Total Air Changes / Hr (ACH)

Minimum Outside Air Changes / Hr (ACH)

Diagnostic&

Treatment

Nursery

Surgery &

Critical Care

Notes: Refer to ASHRAE HVAC Applications handbook or AIA "Guidelines for Design & Construction of Hospital & Health Care Facilities" for latest guidelines and additional information related to Air Change Rates.

TABLE 2: AIR CHANGE RATES FOR CRITICAL SPACES

model MV-2Dual Chamber Laminar Flow Panels

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APPLICATION• Multi-Vent® laminar flow panels provide a

unidirectional “piston” of clean air over criticalwork envelopes effectively isolating the area fromexternal airborne contaminants

• Laminar flow reduces entrainment of recirculated,contaminated air

• Ideal for use in class 10 to 1000 spaces,including clean rooms and surgical suites

• Carries particles, introduced by humans into thecritical area, AWAY from the critical area

• Laminar panels can be utilized individually to coversmaller, critical areas, or built-up into an array ofmultiple panels covering large areas

PANEL FEATURES• Original Multi-Vent® dual chamber design provides

laminar airflow into the space regardless of inletconditions or damper position by redistributing airfrom the upper chamber through perforated “V”shaped diffuser baskets into a lower chamber

• Perforated face is 13% open, and removable via1/4 turn fasteners for cleaning

• Face is hinged/removable and swings down 90°for easy cleaning. Safety cables prevent facefrom accidentally swinging down.

• Integral hanger brackets

• Balancing damper adjustable from panel facethrough hole with removable plug

• Closed cell gasket prevents leakage around face

• Available for lay-in T-bar or hard surface ceilingsystems

PANEL OPTIONS• Model MV-HEP HEPA filtered assembly (page A-18)

• Steel, aluminum, or stainless steel construction

• Higher capacity panels are available for specificapplications. Contact the Anemostat ApplicationsGroup.

• Arctic white baked-on epoxy finish, or satin polish(stainless steel) finishes available

• Aluminum anodized options, contact factory

Volume control valvedisc for precise aircontrol to suit airflowrequirements.

Intermediate diffuserbaskets provide improvedair flow control; otherlaminar systems with single“box and perf” constructioncan’t match performance

Perforated distributionplate with 13 percentfree area as standard.

®


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dimensional data


INTEGRALHANGER

BRACKETS

MODULE SIZE

NOM NECK DIA - 1/8 DISK

VOLUMEDAMPER

PERFORATED DISTRIBUTION PLATE

6-5/8

1-11/16

UPPERCHAMBER

LOWERCHAMBER

MODULE SIZE-1/4

DISTRIBUTIONBASKETS

FACE = MODULE SIZE - (1-1/16)

Model MV-2T - Lay-In T-Bar

NOMINAL - 1/16

NOMINAL + 15/16

SURFACE MOUNTINGEDGE DETAIL

1/2

CLOSED CELLGASKET

NOMINAL - 1/16

TYPICAL JOINTTWO ADJACENT

MULTI-VENT PANELS

CLOSED CELL GASKET

1/16

TINNERMAN CLIP

1/4 TURNFASTENER

SEE PAGE A-33 FOR PROPERLY SPECIFYING BATTEN CONFIGURATION

BATTEN

SCREW(FIELD DRILLEDHOLES)

Model MV-2P - Surface MountedPANEL DIMENSIONS

246363

365366

364

242

244245

243

122

126125124123

Size MaxNeck Size

24 x 7236 x 36

36 x 7236 x 6036 x 48

24 x 24

24 x 6024 x 4824 x 36

12 x 24

12 x 72

12 x 4812 x 36

12 x 60

Nom.Size

16" DIA

16" DIA

8" DIA


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LAMINAR FLOW PANEL ARRAY SELECTION EXAMPLE:1. Room use: Hospital operating room

Minimum air changes required: 25 air changes/hr (ACH)Room size: 25’ x 30’ x 10’ ceiling OR table height: 30” AFF

2. Calculate space volume V = 25 ft x 30 ft x 10 ft = 7,500 ft3

3. Calculate total space airflow CFM = (Room Volume x ACH) / 60 = 3,125 CFM This assumes the cooling load is met with the ACHrecommended.

4. Determine critical work envelope (CWE) in square feet.Include 6” of additional overhang at the perimeter of the workspace for boundary mixing and necking effects, see figure 12below. The required panel area is 88 square feet.

5. Calculate the airflow rate for each square foot of laminar flowpanel:

CFM/ft2 = 3,125/88 = 36 CFM/ft2

6. Calculate the required projection distance from the ceiling to6” above the operating table, or:

Distance = 10 feet – (30”+6”) = 7 feet

7. From graph 2 (page A-12), find the Terminal Velocity Vt ~ 35 feet per minute.

11'

8'

CRITICAL WORKENVELOPE (CWE)

GAS COLUMN

SURGICALTEAM

6"

L I G H T

L I G H T

EQUIPMENT

24"

Some typical layouts for the above example are shown below:

Figure 12: Operating Room, Plan View

Fig 14: Minimizing the length of the perimeter boundaryminimizes mixing. Avoid lay-outs that include inside corners.

GASCOLUMN

2'x5'550 CFM

2' X 2'BLANK

OFF

1'x3'165 CFM

8"DIA

2'x3'330 CFM

2'x6'660 CFM

2'x6'660 CFM

LIGHTSUPPORT

LIGHTSUPPORT

2' X 2'BLANK

OFF

2'x6'660 CFM

2'x6'660 CFM

2'x2'220 CFM

PERIMETER LIGHT FIXTURE

14"DIA

14"DIA

10"DIA

10"DIA

14"DIA

14"DIA 14"DIA

8"DIA

1'x3'165 CFM2' X 2'

BLANK OFF

5"DIA

1'x2'110 CFM

Fig 13: Where gas columns or light supports preclude anuninterrupted array of panels, locate laminar panels to fullysurround the ceiling penetration.

GASCOLUMN

LIGHTSUPPORT

PERIMETER LIGHT FIXTURE

LIGHTSUPPORT

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performance datasupply


model MV-2 / MV-HEP

Test Standard• ANSI / ASHRAE standard 70 & 113• Velocity is the air speed, in feet per minute, measured in the supply air

stream.

• Velocity vs. distance is shown based on CFM/square foot of active face area,and is not dependent upon the size of the face.

Distance vs CFM/Sq Foot2

3

4

5

6

7

8

9

1010 20 30 40 50 60 70 80 90 100 110 120 130

CFM/FT2 of Laminar Flow Panel

Dist

ance

Fro

m M

ulti-

Vent

Pan

el, F

eet

Lines of ConstantTerminal Velocities(Feet per Minute)

10 20

40

6070

8090

100110

120130

140150

50

30

Photo 2: All data is confirmed through rigorous testing in our research anddevelopment center.

GRAPH 2: PROJECTION DISTANCE VS. CFM/FT2 PANEL AREA

Figure 15: Computational FluidDynamics (CFD) software evaluatesroom air motion.


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sound & pressure


10 15 20 25 30 40 50 60 70 80 90 100 110 120CFM 20 30 40 50 60 80 100 120 140 160 180 200 220 240NC <20 <20 <20 <20 <20 <20 <20 23 27 31 35 39 43 47Ps 0.01 0.01 0.01 0.01 0.02 0.03 0.05 0.07 0.10 0.13 0.17 0.22 0.27 0.33NC <20 <20 <20 <20 <20 <20 <20 21 25 29 33 37 41 45Ps 0.01 0.01 0.01 0.01 0.01 0.03 0.04 0.06 0.09 0.11 0.15 0.19 0.23 0.28NC <20 <20 <20 <20 <20 <20 <20 <20 23 27 31 35 39 43Ps 0.01 0.01 0.01 0.01 0.01 0.02 0.04 0.05 0.07 0.10 0.13 0.16 0.20 0.24NC <20 <20 <20 <20 <20 <20 <20 <20 22 26 30 34 38 42Ps 0.01 0.01 0.01 0.01 0.01 0.02 0.03 0.05 0.07 0.09 0.11 0.14 0.17 0.218

5

6

7

CFM/Ft2Inlet

NOMINAL 12" x 24"

10 15 20 25 30 40 50 60 70 80 90 100CFM 30 45 60 75 90 120 150 180 210 240 270 300NC <20 <20 <20 <20 <20 22 27 32 36 41 45 50Ps 0.01 0.01 0.01 0.02 0.02 0.05 0.07 0.11 0.15 0.20 0.26 0.33NC <20 <20 <20 <20 <20 <20 25 29 34 38 43 47Ps 0.01 0.01 0.01 0.02 0.02 0.04 0.07 0.10 0.14 0.17 0.23 0.29NC <20 <20 <20 <20 <20 <20 23 28 32 37 41 45Ps 0.01 0.01 0.01 0.01 0.02 0.04 0.06 0.09 0.12 0.16 0.20 0.26NC <20 <20 <20 <20 <20 <20 22 26 30 34 38 42Ps 0.01 0.01 0.01 0.01 0.02 0.03 0.05 0.08 0.11 0.14 0.19 0.23

N

CFM/Ft2Inlet

5

6

7

8

NOMINAL 12" x 36"

10 15 20 25 30 40 50 60 70 80 90CFM 40 60 80 100 120 160 200 240 280 320 360NC <20 <20 <20 20 23 28 33 38 42 47 51Ps 0.01 0.01 0.02 0.03 0.04 0.08 0.14 0.19 0.27 0.36 0.47NC <20 <20 <20 <20 <20 24 29 34 39 44 48Ps 0.01 0.01 0.02 0.03 0.04 0.07 0.12 0.16 0.23 0.31 0.40NC <20 <20 <20 <20 <20 21 26 30 35 40 45Ps 0.01 0.01 0.02 0.02 0.03 0.06 0.10 0.14 0.20 0.27 0.34NC <20 <20 <20 <20 <20 <20 23 27 32 37 41Ps 0.01 0.01 0.02 0.02 0.03 0.05 0.09 0.13 0.18 0.24 0.31

7

8

CFM/Ft2

Inlet5

6

NOMINAL 12" x 48"

10 15 20 25 30 40 50 60 70 80CFM 50 75 100 125 150 200 250 300 350 400NC <20 <20 <20 23 26 31 36 41 46 51Ps 0.01 0.02 0.03 0.05 0.07 0.12 0.20 0.29 0.40 0.53NC <20 <20 <20 <20 24 29 34 38 43 48Ps 0.01 0.02 0.03 0.04 0.06 0.11 0.17 0.25 0.34 0.45NC <20 <20 <20 <20 <20 27 31 36 41 45Ps 0.01 0.01 0.02 0.03 0.05 0.09 0.14 0.21 0.29 0.38NC <20 <20 <20 <20 <20 24 29 33 38 42Ps 0.01 0.01 0.02 0.03 0.04 0.08 0.13 0.19 0.26 0.34

6

7

8

5

CFM/Ft2Inlet

NOMINAL 12" x 60"

10 15 20 25 30 40 50 60 70CFM 60 90 120 150 180 240 300 360 420NC <20 20 23 26 29 34 39 44 49Ps 0.01 0.01 0.02 0.04 0.07 0.13 0.21 0.32 0.45NC <20 <20 21 24 27 32 37 42 47Ps 0.01 0.01 0.02 0.04 0.06 0.11 0.18 0.27 0.38NC <20 <20 <20 21 25 30 35 39 44Ps 0.01 0.01 0.02 0.03 0.05 0.09 0.15 0.23 0.32NC <20 <20 <20 20 23 27 32 37 42Ps 0.01 0.01 0.02 0.03 0.04 0.08 0.13 0.20 0.28

M

5

6

7

8

CFM/Ft2

Inlet

NOMINAL 12" x 72"

Test Standard• ANSI / ASHRAE Standard 70 & 113

Pressure• Ps represents static pressure, inches of water

Sound Levels• NC is noise criteria curve that will not be exceeded at the operating point.

This is determined by assuming a 10dB (ref: 10-12 watts) room attenuationthat is subtracted from the power levels in each of the 2nd thru 7th octavebands. Data taken with volume damper wide open, if applicable.

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performance datasound & pressure


10 15 20 25 30 40 50 60 70 80 90 100 110 120 130CFM 40 60 80 100 120 160 200 240 280 320 360 400 440 480 520NC <20 20 24 28 31 37 42 47Ps 0.01 0.01 0.02 0.02 0.03 0.06 0.09 0.12NC <20 <20 21 24 27 33 38 43 49Ps 0.01 0.01 0.02 0.02 0.03 0.05 0.08 0.12 0.15NC <20 <20 <20 <20 23 29 34 39 44 49Ps 0.01 0.01 0.02 0.02 0.03 0.05 0.07 0.11 0.14 0.18NC <20 <20 <20 <20 <20 24 30 34 39 45 50Ps 0.01 0.01 0.02 0.02 0.02 0.04 0.07 0.10 0.13 0.17 0.22NC <20 <20 <20 <20 <20 21 26 31 36 41 46Ps 0.01 0.01 0.02 0.02 0.02 0.04 0.06 0.09 0.12 0.15 0.20NC <20 <20 <20 <20 <20 <20 23 28 32 37 41 46 50Ps 0.01 0.01 0.01 0.01 0.02 0.04 0.06 0.08 0.11 0.14 0.18 0.23 0.27NC <20 <20 <20 <20 <20 <20 <20 21 26 30 35 39 44 48Ps 0.01 0.01 0.01 0.01 0.02 0.03 0.05 0.07 0.10 0.13 0.17 0.21 0.25 0.29NC <20 <20 <20 <20 <20 <20 <20 <20 21 25 29 34 38 43 47Ps 0.01 0.01 0.01 0.01 0.02 0.03 0.05 0.07 0.09 0.12 0.15 0.19 0.23 0.27 0.32NC <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 22 27 31 36 40Ps 0.01 0.01 0.01 0.01 0.02 0.03 0.04 0.06 0.08 0.11 0.14 0.17 0.20 0.24 0.28

14

16

5

9

10

12

6

CFM/Ft2

7

8

Inlet

NOMINAL 24" x 24"

10 15 20 25 30 40 50 60 70 80 90 100 110 120 130CFM 60 90 120 150 180 240 300 360 420 480 540 600 660 720 780NC 21 23 25 27 29 34 40 45Ps 0.01 0.02 0.03 0.04 0.06 0.11 0.17 0.24NC <20 <20 20 23 26 31 37 43 48Ps 0.01 0.02 0.03 0.04 0.05 0.09 0.15 0.21 0.29NC <20 <20 <20 <20 23 28 34 40 45Ps 0.01 0.01 0.02 0.03 0.05 0.09 0.13 0.19 0.26NC <20 <20 <20 <20 <20 26 31 37 42 47Ps 0.01 0.01 0.02 0.03 0.04 0.07 0.12 0.17 0.23 0.30NC <20 <20 <20 <20 <20 23 28 33 39 43 48Ps 0.01 0.01 0.02 0.03 0.04 0.07 0.10 0.15 0.20 0.26 0.33NC <20 <20 <20 <20 <20 <20 25 30 34 39 43 48Ps 0.01 0.01 0.01 0.02 0.03 0.06 0.09 0.13 0.18 0.23 0.30 0.36NC <20 <20 <20 <20 <20 <20 <20 24 29 33 38 43 47Ps 0.01 0.01 0.01 0.02 0.03 0.05 0.08 0.12 0.16 0.21 0.26 0.32 0.39NC <20 <20 <20 <20 <20 <20 <20 <20 23 28 33 38 43 48Ps 0.01 0.01 0.01 0.02 0.03 0.05 0.07 0.11 0.14 0.19 0.24 0.29 0.35 0.42NC <20 <20 <20 <20 <20 <20 <20 <20 <20 24 28 32 36 41 45Ps 0.01 0.01 0.01 0.02 0.02 0.04 0.07 0.10 0.13 0.17 0.22 0.27 0.32 0.38 0.4516

6

7

9

10

12

8

14

CFM/Ft2

Inlet5

NOMINAL 24" x 36"

10 15 20 25 30 40 50 60 70 80 90 100 110 120 130CFM 80 120 160 200 240 320 400 480 560 640 720 800 880 960 1040NC 22 25 27 29 32 38 44 49Ps 0.01 0.02 0.03 0.05 0.08 0.14 0.23 0.31NC 21 23 25 27 29 35 41 46Ps 0.01 0.02 0.03 0.05 0.07 0.12 0.19 0.26NC <20 <20 <20 20 25 32 37 42 48Ps 0.01 0.02 0.02 0.04 0.06 0.10 0.17 0.23 0.33NC <20 <20 <20 <20 20 26 32 37 42 48Ps 0.01 0.01 0.02 0.04 0.05 0.09 0.15 0.21 0.29 0.38NC <20 <20 <20 <20 <20 21 27 32 36 40 45 50Ps 0.01 0.01 0.02 0.03 0.05 0.08 0.14 0.19 0.26 0.34 0.43 0.54NC <20 <20 <20 <20 <20 <20 <20 25 29 33 38 42 46 50Ps 0.01 0.01 0.02 0.03 0.04 0.08 0.12 0.17 0.24 0.31 0.39 0.49 0.59 0.70NC <20 <20 <20 <20 <20 <20 <20 <20 23 27 31 35 39 43 47Ps 0.01 0.01 0.02 0.03 0.04 0.07 0.11 0.16 0.22 0.28 0.36 0.45 0.54 0.64 0.76

M

Inlet

16

9

8

CFM/Ft2

7

10

12

14

NOMINAL 24" x 48"






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sound & pressure


10 15 20 25 30 40 50 60 70 80 90 100CFM 100 150 200 250 300 400 500 600 700 800 900 1000NC 21 24 27 30 33 39 44 50Ps 0.04 0.05 0.06 0.08 0.12 0.21 0.32 0.46NC <20 22 25 28 30 35 41 46Ps 0.03 0.04 0.05 0.07 0.10 0.18 0.28 0.40NC <20 <20 20 23 26 31 36 41 46Ps 0.02 0.03 0.04 0.06 0.09 0.16 0.24 0.35 0.47NC <20 <20 20 <20 22 27 33 37 43 48Ps 0.01 0.02 0.03 0.05 0.08 0.14 0.21 0.31 0.42 0.54NC <20 <20 20 <20 <20 22 28 33 37 41 46Ps 0.01 0.02 0.03 0.05 0.07 0.12 0.19 0.27 0.37 0.48 0.60NC <20 <20 20 <20 <20 <20 21 26 30 34 39 43Ps 0.01 0.01 0.02 0.04 0.06 0.11 0.17 0.25 0.33 0.44 0.55 0.68NC <20 <20 20 <20 <20 <20 <20 <20 24 28 32 36Ps 0.01 0.01 0.02 0.04 0.06 0.10 0.16 0.23 0.31 0.40 0.50 0.62

M

16

8

9

CFM/Ft2Inlet

7

10

12

14

NOMINAL 24" x 60"

10 15 20 25 30 40 50 60 70 80 90 100CFM 120 180 240 300 360 480 600 720 840 960 1080 1200NC 21 24 27 30 33 38 44 50Ps 0.02 0.03 0.05 0.08 0.12 0.21 0.34 0.49NC <20 22 25 27 29 34 40 45 50Ps 0.02 0.03 0.05 0.07 0.11 0.18 0.30 0.42 0.58NC <20 <20 20 23 25 30 35 40 45 50Ps 0.02 0.03 0.05 0.07 0.10 0.16 0.26 0.38 0.52 0.68NC <20 <20 <20 <20 20 25 30 35 40 45 50Ps 0.01 0.02 0.04 0.06 0.09 0.14 0.23 0.34 0.46 0.60 0.76NC <20 <20 <20 <20 <20 21 25 30 35 39 44Ps 0.01 0.02 0.03 0.05 0.07 0.13 0.20 0.29 0.40 0.52 0.66NC <20 <20 <20 <20 <20 <20 21 25 29 34 38 43Ps 0.01 0.02 0.03 0.05 0.07 0.11 0.18 0.26 0.36 0.47 0.59 0.73NC <20 <20 <20 <20 <20 <20 <20 21 25 29 33 38Ps 0.01 0.01 0.02 0.04 0.06 0.10 0.16 0.24 0.32 0.42 0.53 0.6616

12

14

9

10

8

CFM/Ft2Inlet

7

NOMINAL 24" x 72"





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10 15 20 25 30 40 50 60 70 80 90CFM 90 135 180 225 270 360 450 540 630 720 810NC 22 27 31 34 37 42 48Ps 0.01 0.02 0.04 0.06 0.09 0.16 0.26NC <20 20 25 30 34 40 45Ps 0.01 0.02 0.04 0.05 0.08 0.14 0.22NC <20 <20 22 28 31 37 42 47Ps 0.01 0.02 0.03 0.05 0.07 0.13 0.20 0.29NC <20 <20 20 25 28 33 38 43 48Ps 0.01 0.02 0.03 0.04 0.06 0.11 0.18 0.26 0.35NC <20 <20 <20 20 24 29 35 40 45 50Ps 0.01 0.02 0.03 0.04 0.05 0.10 0.15 0.22 0.30 0.40NC <20 <20 <20 <20 <20 27 32 37 42 46Ps 0.01 0.01 0.02 0.03 0.05 0.09 0.14 0.20 0.28 0.37NC <20 <20 <20 <20 <20 24 29 33 38 42 46Ps 0.01 0.01 0.02 0.03 0.05 0.08 0.13 0.18 0.25 0.33 0.4216

9

10

12

14

8

Inlet7

CFM/Ft2NOMINAL 36" x 36"

10 15 20 25 30 40 50 60 70 80 90CFM 120 180 240 300 360 480 600 720 840 960 1080NC <20 24 30 35 39 44 50Ps 0.05 0.07 0.09 0.11 0.15 0.27 0.43NC <20 22 28 33 36 41 46Ps 0.03 0.05 0.07 0.09 0.13 0.23 0.37NC <20 <20 24 29 33 38 44 50Ps 0.02 0.03 0.05 0.08 0.11 0.20 0.32 0.46NC <20 <20 22 27 30 36 41 47Ps 0.01 0.02 0.04 0.07 0.10 0.18 0.28 0.41NC <20 <20 <20 22 26 32 38 43 49Ps 0.01 0.01 0.03 0.06 0.09 0.16 0.25 0.36 0.49NC <20 <20 <20 <20 22 28 34 39 44 49Ps 0.01 0.01 0.03 0.05 0.08 0.14 0.22 0.32 0.43 0.57NC <20 <20 <20 <20 <20 25 30 34 39 44 49Ps 0.01 0.01 0.02 0.05 0.07 0.13 0.20 0.29 0.39 0.51 0.65

10

12

14

16

Inlet7

8

9

CFM/Ft2NOMINAL 36" x 48"

10 15 20 25 30 40 50 60 70 80CFM 150 225 300 375 450 600 750 900 1050 1200NC <20 20 24 28 31 37 43 49Ps 0.02 0.04 0.06 0.08 0.11 0.20 0.31 0.45NC <20 <20 20 24 27 33 38 44 50Ps 0.02 0.03 0.05 0.07 0.10 0.18 0.28 0.41 0.56NC <20 <20 <20 20 23 29 34 40 45Ps 0.01 0.02 0.04 0.06 0.09 0.16 0.25 0.37 0.50NC <20 <20 <20 <20 20 26 31 36 42 47Ps 0.01 0.02 0.04 0.06 0.08 0.15 0.23 0.33 0.45 0.59

Inlet10

12

CFM/Ft2

14

16

NOMINAL 36" x 60"

10 15 20 25 30 40 50 60 70 80CFM 180 270 360 450 540 720 900 1080 1260 1440NC <20 21 25 29 32 38 44 50Ps 0.03 0.05 0.07 0.09 0.12 0.22 0.35 0.50NC <20 <20 21 25 28 34 40 46Ps 0.02 0.04 0.06 0.08 0.11 0.20 0.31 0.46NC <20 <20 <20 21 24 30 36 41 47Ps 0.02 0.03 0.05 0.07 0.10 0.18 0.29 0.41 0.56NC <20 <20 <20 <20 21 27 32 37 43 48Ps 0.01 0.02 0.04 0.06 0.09 0.17 0.26 0.38 0.51 0.68

N

14

16

CFM/Ft2Inlet10

12

NOMINAL 36" x 72"






features at a glanceLa

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❏ MV-2 - MULTI-VENT® DUAL CHAMBERLAMINAR FLOW PANEL

MODEL ❏ LAY-IN T-BAR GRID SYSTEM❏ SURFACE / HARD CEILING

(SPECIFY BATTEN ARRANGEMENT PAGE A-33)

INSTALLATION

❏ 12"❏ 24"

❏ 36"NOMINAL WIDTH

❏ 2'❏ 3'❏ 4'

❏ 5'❏ 6'

NOMINAL LENGTH

❏ 4" - 8" Ø (12" WIDE UNITS)❏ 4" - 16" Ø (24 & 36" WIDE UNITS)

TOP INLET SIZE

DISTRIBUTION PANEL❏ STEEL WITH WHITE

BAKED EPOXY❏ ALUMINUM WITH WHITE

BAKED EPOXY❏ 304 STAINLESS STEEL,

#4 POLISH❏ 304 STAINLESS STEEL

WITH WHITE BAKEDEPOXY

DUAL CHAMBER PLENUM❏ STEEL WITH WHITE



2B MILL FINISH❏ 304 STAINLESS STEEL


MATERIAL AND FINISH

❏ 1/2" FOIL FACED EXTERNAL INSULATION

ACCESSORIES

FOR ALUMINUM ANODIZED FINISHES, CONTACT FACTORY.

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model MV-HEPLaminar Flow Panel w/HEPA Filter

product description


APPLICATION• Use where “room-side replaceable” HEPA or ULPA

filters are required. Multi-Vent® Filter units aredesigned for easy replacement of filters

• Multi-Vent® laminar flow panels provide aunidirectional “piston” of clean air over criticalwork envelopes effectively isolating the area fromexternal airborne contaminants

• Superior filter design maximizes efficiency andminimizes pressure loss – each filter isdynamically tested at the factory and labeled withthe results.

• Laminar flow reduces entrainment of recirculated,contaminated air

• Ideal for use in class 10 to 1000 spaces,including clean rooms and surgical suites

• Carries particles, introduced by humans into thecritical area, AWAY from the critical area

• Laminar panels can be utilized individually to coversmaller, critical areas, or built-up into an array ofmultiple panels covering large areas

UNIT FEATURES• 12" x 48", 24" x 24", 24" x 48" standard sizes.

Other sizes available, contact your localAnemostat representative for details.

• Multi-Vent® -filter interface includes knife edge intofilter gel seals for zero leak performance

• DOP, pressure ports, and an aerosol injectiontube system simplify field verification andcertification


• Face is hinged and swings down 90° for easycleaning. Safety cables prevent face fromaccidentally swinging down.

• Balancing damper adjustable through hole withremovable plug



OPTIONS• Light Alert Filter Monitoring System (page A-31)

• Magna-Pak HEPA and ULPA filters with anodizedaluminum framing to precisely fit the laminar flowunit (ordered separately see page A-31)

• Steel, aluminum, or stainless steel construction

• Arctic white baked-on epoxy finish, or satin polish(stainless steel) finishes available

• Aluminum anodized options, contact factory


5" deep Magna-Pak HEPA Filter (orderedseparately, page A-31)

Perforated distributionplate with 13 percent freearea as standard.

®


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A-19

dimensional data


FACE=MODULE SIZE - (1-1/16)

MODULE SIZE - 1/4NOM. NECK

DIA. - 1/8DISK VOLUMEDAMPER

1-13/16

5" DEEP MAGNA-PAK HEPA FILTERORDERED SEPARATELY

INTEGRALHANGER

BRACKETS

1/4 TURNFASTENERS

PERFORATEDDISTRIBUTION PLATE

MODULE SIZE

12-1/2

GASKETS

Model MV-HEP-T - (Top Inlet) Lay-In T-Bar

NOMINAL - 1/16

NOMINAL + 15/16


1/2

CLOSED CELLGASKET

NOMINAL - 1/16


MULTI-VENT PANELS

CLOSED CELL GASKET

1/16

TINNERMAN CLIP

1/4 TURNFASTENER


BATTEN


Model MV-HEP-P - Surface Mounted

FACE=MODULE SIZE - (1-1/16)

MODULE SIZE - 1/4

NOM. NECKDIA. - 1/8

5" DEEP MAGNA-PAK HEPA FILTERORDERED SEPARATELY

INTEGRALHANGER

BRACKETS

1/4 TURNFASTENERS

PERFORATEDDISTRIBUTION PLATE

MODULE SIZE

12-1/2

GASKETS

VOLUME DAMPER(CABLE DRIVE)

Model MV-HEP-T - (End Inlet) Lay-In T-Bar

FILTER GEL SEAL EDGE DETAIL

FILTERFRAME

1/4 TURNRETAINER

GEL SEAL

CAP SCREW

PANEL DIMENSIONS

12 x 48

24 x 4824 x 24

ModuleSize End Inlet

8˘ 8˘8˘8˘16˘

16˘

Top InletMAX NECK SIZE

Note: End Inlet is positioned on shorter side of panel.

Other sizes available, contact your Anemostat representative for details.

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10 15 20 25 30 40 50 60 70CFM 40 60 80 100 120 160 200 240 280NC <20 <20 <20 <20 <20 23 28 33 37Ps 0.16 0.24 0.32 0.40 0.49 0.66 0.84 1.02 1.22NC <20 <20 <20 <20 <20 <20 24 29 34Ps 0.16 0.24 0.32 0.40 0.48 0.65 0.83 1.01 1.19NC <20 <20 <20 <20 <20 <20 21 25 30Ps 0.16 0.24 0.32 0.40 0.48 0.65 0.82 1.00 1.18NC <20 <20 <20 <20 <20 <20 <20 22 27Ps 0.16 0.24 0.32 0.40 0.48 0.65 0.82 0.99 1.17

7

8

5

CFM/Ft2Inlet

6

NOMINAL 12" x 48"

10 15 20 25 30 40 50 60 70 80 90 100CFM 40 60 80 100 120 160 200 240 280 320 360 400NC <20 <20 <20 22 25 31 36 41 47 52 57 63Ps 0.09 0.14 0.18 0.23 0.28 0.38 0.48 0.59 0.70 0.82 0.93 1.06NC <20 <20 <20 <20 21 27 32 37 43 48 53 58Ps 0.09 0.14 0.18 0.23 0.28 0.38 0.48 0.59 0.70 0.81 0.93 1.04NC <20 <20 <20 <20 <20 23 28 33 38 43 49 54Ps 0.09 0.14 0.18 0.23 0.28 0.38 0.48 0.58 0.69 0.80 0.91 1.03NC <20 <20 <20 <20 <20 <20 24 28 33 39 44 49Ps 0.09 0.14 0.18 0.23 0.28 0.37 0.47 0.58 0.68 0.79 0.90 1.01NC <20 <20 <20 <20 <20 <20 20 25 30 35 40 45Ps 0.09 0.13 0.18 0.23 0.28 0.37 0.47 0.57 0.68 0.78 0.89 1.01NC <20 <20 <20 <20 <20 <20 <20 22 26 31 35 40Ps 0.09 0.13 0.18 0.23 0.27 0.37 0.47 0.57 0.67 0.78 0.89 0.99NC <20 <20 <20 <20 <20 <20 <20 <20 20 24 29 33Ps 0.09 0.13 0.18 0.23 0.27 0.37 0.47 0.57 0.67 0.77 0.88 0.99NC <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 23 28Ps 0.09 0.13 0.18 0.23 0.27 0.37 0.46 0.56 0.66 0.76 0.87 0.97NC <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 21Ps 0.09 0.13 0.18 0.23 0.27 0.37 0.46 0.56 0.66 0.76 0.86 0.96

M

5

Inlet

14

16

CFM/Ft2

9

10

8

12

7

6

NOMINAL 24" x 24"

10 15 20 25 30 40 50 60 70 80 90 100CFM 80 120 160 200 240 320 400 480 560 640 720 800NC <20 21 23 25 26 32 38 43 49 55 61 66Ps 0.08 0.13 0.17 0.22 0.28 0.39 0.50 0.63 0.77 0.91 1.07 1.23NC <20 <20 <20 21 23 29 35 40 46 51 57 63Ps 0.08 0.13 0.17 0.22 0.27 0.37 0.49 0.61 0.74 0.87 1.02 1.17NC <20 <20 <20 <20 <20 26 31 36 42 48 54 59Ps 0.08 0.13 0.17 0.22 0.27 0.37 0.48 0.59 0.71 0.84 0.98 1.12NC <20 <20 <20 <20 <20 20 26 31 36 42 48 53Ps 0.08 0.12 0.17 0.22 0.26 0.36 0.47 0.58 0.70 0.82 0.95 1.09NC <20 <20 <20 <20 <20 <20 21 26 30 34 39 44Ps 0.08 0.12 0.17 0.21 0.26 0.36 0.46 0.57 0.68 0.80 0.92 1.05NC <20 <20 <20 <20 <20 <20 <20 <20 23 27 32 36Ps 0.08 0.12 0.17 0.21 0.26 0.35 0.45 0.56 0.67 0.78 0.90 1.03NC <20 <20 <20 <20 <20 <20 <20 <20 <20 21 25 29Ps 0.08 0.12 0.17 0.21 0.26 0.35 0.45 0.55 0.66 0.77 0.89 1.0116

8

9

Inlet

14

10

12

CFM/Ft2

7

NOMINAL 24" x 48"

Note• Flow range shown in table above allows for a Magna-Pak HEPA filter

efficiency of 99.99% @ .3 micron. Higher flow rates are possible with99.97% (.3 micron) filters @ higher NC and Ps levels. Contact yourAnemostat representative for application assistance.


For throw data, see page A-12





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❏ MV-HEP - MULTI-VENT® DUAL CHAMBERLAMINAR FLOW PANELWITH HEPA FILTER

MODEL❏ LAY-IN T-BAR GRID SYSTEM❏ SURFACE / HARD CEILING

(SPECIFY BATTEN ARRANGEMENT PAGE A-33)

INSTALLATION

❏ 12"❏ 24"

❏ 36"NOMINAL WIDTH

❏ 2'❏ 3'❏ 4'

❏ 5'❏ 6'

NOMINAL LENGTH






DUAL CHAMBER PLENUM❏ STEEL WITH WHITE





MATERIAL AND FINISH

❏ LIGHT-ALERT FILTER MONITORING SYSTEM❏ 1/2" FOIL FACED EXTERNAL INSULATION

ACCESSORIES

TOP INLET❏ 4" - 8" Ø

(12" WIDE UNITS)❏ 4" - 16" Ø

(24 & 36" WIDE UNITS)

INLET SIZE & LOCATION

SIDE INLET❏ CONTACT FACTORY FOR SIZES

END INLET❏ 8" Ø MAXIMUM


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model MV-1Single Chamber Laminar Flow Panels

product description


APPLICATION• Laminar flow panel to provide a source of clean

air over critical work envelopes

• While no ceiling air panels that are designed forapplications where clean air control is essentialcan match the performance aspects of the MV-2dual chamber product, the MV-1 serves as aneconomical substitute

• Panels can be utilized individually to cover smaller,critical areas, or built-up into an array of multiplepanels covering large areas

PANEL FEATURES• Single chamber design provides vertical projection

of air over critical work areas.


• Face is hinged and swings down 90° for easycleaning. Safety cables prevent face fromaccidentally swinging down.

• Balancing damper adjustable from panel facethrough hole with removable plug



PANEL OPTIONS• Steel, aluminum, or stainless steel construction

• White, baked epoxy finish, satin polish (stainlesssteel).

• Contact factory for anodize finish options


Perforated distributionplate with 13 percentfree area as standard.

®


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A-23

dimensional data


INTEGRALHANGER

BRACKETS

MODULE SIZE

NOM NECK DIA - 1/8 DISK

VOLUMEDAMPER

PERFORATED DISTRIBUTION PLATE

3-1/2

1-11/16

MODULE SIZE-1/4


Model MV-1T - Lay-In T-Bar

NOMINAL - 1/16

NOMINAL + 15/16


1/2

CLOSED CELLGASKET

NOMINAL - 1/16


MULTI-VENT PANELS

CLOSED CELL GASKET

1/16

TINNERMAN CLIP

1/4 TURNFASTENER


BATTEN


Model MV-1P - Surface MountedPANEL DIMENSIONS

246363

365366

364

242

244245

243

122

126125124123

Size MaxNeck Size

24 x 7236 x 36

36 x 7236 x 6036 x 48

24 x 24

24 x 6024 x 4824 x 36

12 x 24

12 x 72

12 x 4812 x 36

12 x 60

Nom.Size

18" DIA

18" DIA

9" DIA

082

086085084083

8 x 24

8 x 72

8 x 488 x 36

8 x 605" DIA

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performance datasupply


Distance vs CFM/Sq Foot3

4

5

6

7

8

9

1010 20 30 40 50 60 70 80

30 4050

6070

8090

100

Dist

ance

Fro

m M

ulti-

Vent

Pan

el, F

eet

Lines of ConstantTerminal Velocities(Feet per Minute)

CFM/FT2 of Laminar Flow Panel

GRAPH 3: PROJECTION DISTANCE VS. CFM/FT2 PANEL AREA

Test Standard• ANSI / ASHRAE standard 70 & 113• Velocity is the air speed, in feet per minute, measured in the supply air

stream.

• Velocity vs. distance is shown based on CFM/square foot of active face area,and is not dependent upon the size of the face.


performance dataLa

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sound & pressure


CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

72"4736 39 42 44<20 24 29 33

200 220 2400.02 0.03 0.03 0.04 0.05 0.06 0.08120 140 160 180

M

70

20

80

230.06 0.080.03

60 700.04 0.06

500.035030

0.01 0.0240

<20

60 80 1000.01 0.01 0.01

<20

20 30

<200.01 0.01

35

50 700.01 0.01<20 38 39 42<20 24 29 31

0.05 0.06 0.07 0.090.01 0.02 0.03 0.04150 170 180 20080 100 120 130

<2060"

29 31 35 36<20 <20 21 260.05 0.05 0.07 0.080.02 0.02 0.03 0.04120 130 150 16070 80 90 110

48"40 50

0.01 0.01<20 <20

26 29 31 34<20 <20 20 230.04 0.06 0.07 0.080.01 0.02 0.03 0.04

100 110 120<20 <20 <20 20<20 <20

9050 60 70 8036"

24"

PANELLENGTH

30 400.01 0.01

6025 30 35 40

5" ˘

45 50 55CFM / Ft2 of Panel Area 15 20INLET

SIZE

<20 <20

5" ˘

5" ˘

5" ˘

5" ˘

8" W

IDE

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

22 25 28 30<20 <20 <20 <20

220 2400.01 0.02 0.03 0.03 0.04 0.05 0.06 0.08

140 160 180 2000.01 0.01

100 120

<20 <20

3524 27 3060 80

32<20 <20 <20 21

200 220 2400.02 0.03 0.03 0.04 0.05 0.06 0.08120 140 160 180

M

110

<20

120

<200.04 0.050.02

90 1000.03 0.03

800.027050

0.01 0.0160

<20

60 80 1000.01 0.01 0.01

<20

30 40

<200.01 0.01

<20

50 600.01 0.01<20 <20 <20 <20 <20

0.0421 24 25

150 170 1800.01 0.01 0.02 0.02 0.03 0.03 0.04

30 31

<20

80 90 110 120 140<20 21 25 27

170 1800.01 0.02 0.03 0.03 0.04 0.05 0.06 0.07

110 120 140 150

<20 <20

80 90

<20 <20

50 600.01 0.01

0.03<20 <20 <20 <20 <20 <20 <20 <20

0.01 0.02 0.02 0.03100 110 120

<20 <20 <20 <20<20 <209050 60 70 80

0.01 0.01 0.0130 40

0.01 0.01<20 <20

80 1000.01 0.01<20 <20

130 150 180 200 230 250 280 3000.02 0.03 0.04 0.05 0.07 0.08 0.10 0.12<20 21 25 28 32 34 37 39

80 300130 150 180 200

<20 <200.03

2301000.01 0.01 0.060.01 0.02 0.02

250 280

<20 <20 22 25 34 360.04 0.05 0.0729 31

120 150 180 3600.01 0.01 0.02 0.02 0.03 0.04 0.06 0.07

210

430.08 0.10

<20 <20 21 25 29 4133 36 39

90 330240

90 120 150 180 210 240 270 300 330 3600.01 0.01 0.02 0.02 0.03 0.04 0.06 0.07

360.08 0.10

<20 <20 <20 <20 22 3426 29 32

55 6025 30 35 40

8" ̆

7" ̆

45 50CFM / Ft2 of Panel Area 15 20

270 300

8" ̆

7" ̆

8" ̆

7" ̆

8" ̆

12" W

IDE

24"

36"

48"

60"

72"

7" ̆

8" ̆

7" ̆

PANELLENGTH

INLETSIZE

Test Standard• ANSI / ASHRAE standard 70• Data obtained with the volume damper in the full open position

Sound Levels• NC is noise criteria curve that will not be exceeded at the operating point by

the individual diffuser. This is determined by assuming a 10dB (ref: 10-12watts) room attenuation that is subtracted from the power levels in each ofthe 2nd thru 7th octave bands.

Pressure• Ps represents Static Pressure, inches of water

A-26

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CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

47 50 52 5432 36 40 440.16 0.20 0.24 0.280.05 0.07 0.10 0.13

<20 26

72"

8" ˘180 2400.02 0.03

22 24 27 29<20 <20 <20 <20

330 3600.01 0.02 0.02 0.03 0.04 0.05 0.06 0.07

210 240 270 3000.01 0.01

150 180

<20 <20

3626 29 3290 120

34<20 <20 <20 22

300 330 3600.02 0.03 0.04 0.06 0.07 0.08 0.10180 210 240 270

M

220

32

240

350.06 0.080.03

180 2000.04 0.05

1600.03140100

0.01 0.02120

<20

90 120 1500.01 0.01 0.02

<20

60 80

<200.01 0.01

36

90 1200.01 0.02<20 25 29 33

0.1739 41 43

300 330 3600.03 0.04 0.06 0.08 0.10 0.12 0.14

180 210 240 270

<20

150

21

<20 <20 <20 22<20 <20 <20 <200.02 0.03 0.04 0.040.01 0.01 0.01 0.02180 200 220 240100 120 140 16060 80

0.01 0.01<20 <20

0.08<20 <20 <20 <20 22 25 28 30

0.03 0.04 0.05 0.06200 220 240

<20 24 27 30<20 21180100 120 140 160

0.01 0.02 0.0360 80

0.01 0.01<20 <20

120 1600.01 0.02<20 <20

200 240 280 320 360 400 440 4800.03 0.04 0.06 0.08 0.10 0.12 0.15 0.1825 30 34 37 40 43 46 48

120 440 480200 240 280 3201600.01 0.01 0.110.02 0.03 0.04 0.06

360 400

32 35<20 22 26 29<20 <20 37 400.07 0.09 0.13

400160 200 240 4800.01 0.01 0.02 0.02 0.03 0.04 0.05 0.07

280

370.08 0.09

<20 <20 <20 <20 23300

3426 29 32

120 440

350 400 450 500 550 6000.02 0.03 0.05 0.07 0.09 0.12 0.15 0.19

540.23 0.27

<20 25 31 36 40 5143 46 49550350 450 500150 600

0.01 0.02 0.03 0.05 0.07 0.09 0.11 0.14 0.16 0.20<20 <20 23 28 32 35 38 41 43 46

600450150 200 2500.07 0.08 0.100.01 0.02 0.03 0.04

32 35

550500

37 400.12 0.15

<20 <20 <20

400

400

350

22 26

10" ˘

12" ˘29

0.05

48"

60"

24" W

IDE

300

200 250 300

150 200 250

55 6025 30 35 40

10" ˘

12" ˘

45 50CFM / Ft2 of Panel Area 15 20

320 360

8" ˘

24"

8" ˘

10" ˘

12" ˘

8" ˘

10" ˘36"

12" ˘

8" ˘

300 360 420 480 540 600 660 720

10" ˘180 240 300 360 420 480 540 600 660 7200.01 0.02 0.04 0.05 0.07 0.09 0.12 0.15 0.18 0.21<20 <20 24 29 33 37 40 42 45 47

12" ˘180 2400.01 0.02<20 <20

300 360 420 480 540 600 660 7200.03 0.04 0.05 0.07 0.09 0.11 0.13 0.15<20 24 28 32 35 37 40 42

PANELLENGTH

INLETSIZE






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sound & pressure


CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

CFMPsNC

35 37 40 42<20 24 28 32

660 7200.03 0.04 0.05 0.07 0.09 0.11 0.13 0.15

420 480 540 6000.01 0.02

300 360

<20 <20

4737 40 42180 240

45<20 24 29 33

600 660 7200.05 0.07 0.09 0.12 0.15 0.18 0.21360 420 480 540

M

500

45

540

470.14 0.160.07

410 4500.09 0.11

3600.06320230

0.03 0.04270

<20

180 240 3000.01 0.02 0.04

<20

140 180

<200.01 0.02

43

180 2400.02 0.03<20 32 36 40

0.2846 48 50

600 660 7200.05 0.07 0.10 0.13 0.16 0.20 0.24

360 420 480 540

22

300

28

30 32 35 37<20 <20 23 260.05 0.06 0.07 0.090.02 0.02 0.03 0.04410 450 500 540230 270 320 360140 180

0.01 0.01<20 <20

0.12<20 22 26 29 33 35 38 40

0.05 0.07 0.08 0.10450 500 540

25 36 40 4229 33410230 270 320 360

0.02 0.03 0.04140 1800.01 0.01<20 <20

230 3000.02 0.0421 28

380 450 530 600 680 750 830 9000.06 0.08 0.11 0.15 0.19 0.23 0.28 0.3334 38 42 46 49 51 54 56

230 830 900380 450 530 6003000.02 0.03 0.200.04 0.06 0.08 0.11

680 750

43 4528 32 36 40<20 22 48 500.14 0.17 0.24

750300 380 450 9000.02 0.03 0.04 0.06 0.08 0.11 0.14 0.17

530

450.20 0.24

<20 <20 23 27 31 4334 38 40

230 830600

270 360 450 540 630 720 810 900 990 10800.02 0.04 0.06 0.09 0.12 0.15 0.19 0.24

580.29 0.34

22 29 35 40 44 5547 50 53540 990630 810 900270 1080

0.02 0.04 0.06 0.09 0.12 0.15 0.19 0.24 0.29 0.34<20 24 30 35 39 42 45 48 50 53

1080810270 360 450

42 45

990900

470.15 0.18

500.22 0.26

<20 21 27

720630

32 3614" ˘ 0.090.02 0.03 0.05

60"

72"

540

72012" ˘

390.120.06

360 450

50 55 6025 30 35 40

10" ˘

12" ˘

14" ˘

45CFM / Ft2 of Panel Area 15 20

680

10" ˘

36"

36" W

IDE

10" ˘

12" ˘

14" ˘

10" ˘

12" ˘ 48"

14" ˘

PANELLENGTH

INLETSIZE





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features at a glance


❏ MV-1 - MULTI-VENT® SINGLE CHAMBERLAMINAR FLOW PANEL

MODEL❏ LAY-IN T-BAR GRID SYSTEM❏ SURFACE / HARD CEILING

(SPECIFY BATTEN ARRANGEMENT PAGE A-33)❏ INACTIVE PERFORATED PANEL TO MATCH

ACTIVE PANELS❏ BLANK-OFF PANEL (SOLID)

INSTALLATION

❏ 8"❏ 12"

❏ 24"❏ 36"

NOMINAL WIDTH

❏ 2'❏ 3'❏ 4'

❏ 5'❏ 6'

NOMINAL LENGTH

❏ 4" - 5" Ø (8" WIDE UNITS)❏ 4" - 9" Ø (12" WIDE UNITS)❏ 4" - 18" Ø (24 & 36" WIDE UNITS)

TOP INLET SIZE






PLENUM❏ STEEL WITH WHITE





MATERIAL AND FINISH

❏ 1/2" FOIL FACED EXTERNAL INSULATION

ACCESSORIES


model THD-1500Ceiling Grid System • 1-1/2" T-Beams

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APPLICATION• Hospital operating suites, laboratories, and clean rooms

where ceiling access is desirable

• Eases installation of devices such as laminar flow panels andfluorescent light fixtures located adjacent to each other ascompared to a hard ceiling surface

• Grid system typically occupies central portion of ceiling, witha gypsum / sheet rock perimeter

• Support hangers sized and spaced to provide support for amaximum ceiling load of 10 lbs./ft2 ceiling surface.

PRODUCT FEATURES• Factory welded grid system on 12-1/8" Modulus

(Ex. 24-1/4" x 48-1/2" Centerlines)

• Individual sections fabricated up to 5' x 10' as standard forease of transport, handling, and installing. Larger sectionsavailable as applicable / practical

• Designed via structural analysis software for rigidity –insures a tight seal from the contaminated plenum spaceabove

• Supports a minimum of 10 lbs load / square foot

• Factory furnished compression clips hold components tightto frame to prevent leakage (field installed)

FULL T-BEAM FEATURES• 1-1/2" Wide Full T-Beams exceeding .52 lbs/lineal foot

• 1-3/4" high vertical leg minimizes interference with installedceiling components and hanger wire or threaded rod

• Minimum wall thickness of .125"

HALF T-BEAM FEATURES• 3/4" Half T-Beams with “Lock-Align” design for positive

alignment between mating sections

• Pairs of Half T-Beams mate together to form a dimensionalequivalent of a Full T-Beam (field attached with threadedfasteners and clips)

SUPPORT METHODS• Holes die punched at 12" intervals in vertical legs of frame

for hanger wire support is standard (optional 6" intervals).

• Optional threaded rod brackets are available

• 24" support intervals in both directions are typical. Ceilingload, support specifications, and building codes may allowfor larger spacing intervals.

MATERIALS• 6000 Series Extruded Aluminum alloy for strength/rigidity,

corrosion protection, and clean lines.

• Closed-cell Polyethylene gasket material (PSA) is provided forfield installation.

FINISHES• Arctic White epoxy powder coat finish

• Clear / Natural Anodize finish

Model MVG 15/16" T-Bar systems available. Contact your Anemostat representative for details

1.500

1.750

.125

1.500

.750 .750

HALF T-BEAMSECTION

HALF T-BEAMSECTION

MATING HALF T-BEAM SECTION

FULL BEAM SECTION

“Lock-Align”Feature

Eliminates Gaps and

Seals Ceiling

Closed CellPolyethylene Gasket(field applied)

.125

NOTE: Verify grid assemblies will FIT throughdoor openings, etc. within building prior toordering.


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model THD-1500Ceiling Grid System • 1-1/2" T-Beams

product description


THD-1500 GRID LAYOUT EXAMPLE:The laminar flow layout example from page A-11 is shown below:

(All views are plan view)

The modulus for the T-beam centerline spacing is 12-1/8". For example: 24-1/4" x 48-1/2"

12' 1-1/2"

8' 1"

GASCOLUMN

2'x5'550 CFM

2' X 2'BLANK

OFF

1'x3'165 CFM

8"DIA

2'x3'330 CFM

2'x6'660 CFM

2'x6'660 CFM

LIGHTSUPPORT

LIGHTSUPPORT

2' X 2'BLANK

OFF

2'x6'660 CFM

2'x6'660 CFM

2'x2'220 CFM

14"DIA

14"DIA

10"DIA

10"DIA

14"DIA

14"DIA 14"DIA

8"DIA

1'x3'165 CFM2' X 2'

BLANK OFF

5"DIA

1'x2'110 CFM

AVOIDINSIDECORNERS

Factory welded assemblies are available in onepiece up to 5 ft x 10 ft. Sub-assemblies are usedfor larger sizes whereby the grid is split into logicalsections. The layout above may be split as shown,but includes inside corners. These should beavoided where feasible:

With a minor modification to the laminar flowpanel layout, two sub-assemblies are easily createdwith only one straight hairline joint:

model Magna-PakHEPA Filters

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accessory description


APPLICATION• HEPA filters for Models MV-HEP laminar flow panels, HCRF

radial flow diffusers, and MVCF linear curtain ceiling diffusers

• Room side replaceable, final filtration of supply air at the diffuser

UNIT FEATURES• Laminar flow grade 5” deep filter pack with effective media area

53.30 times the face area means longer life compared to 2”and 2-1/2” deep filters.

• Standard DOP efficiencies of 99.97% and 99.99% (.3 micronparticles).

• Anti-gravity, self-healing gel seal provides leak proof interface

• Every filter is factory tested and labeled for pressure drop andefficiency

• Media for high and low velocity applications outperformscomparable aluminum separator elements.

• Media permanently bonded to the frame with 100% solidpolyurethane

• Heavy, aluminum extruded frame with mitered corners

• Filters individually enclosed in poly bags, and shipped separatefrom diffuser

OPTIONS• Higher efficiencies available

• Scan testing 99.99% efficient (.3 micron) filters and higher

APPLICATION• Filter status indicating light illuminates when HEPA filter

replacement is required

• Increased levels of operating safety and energy savings for cleanspaces utilizing final HEPA filtration diffusers

UNIT FEATURES• Constantly monitors filter loading using differential pressure

sensors

• Red LED light (100,000 hr) illuminates when filter reaches pre-determined pressure drop indicating filter replacement isrequired

• Factory set differential pressure drop from .5”-3.0” w.g.

• Filter status indication is visible from the occupied space

• Maintenance staff no longer required to access the module andconnect gauges or other special tools to check filter condition

• Unaffected by changes in room pressure

• Requires low voltage 24vac power source

• Light Alert monitor available with any Anemostat HEPA filteredproduct (MV-HEP, HCRF, MVCF)

OPTIONS• Model LA-24 enclosure/transformer steps down high voltage

source (120, 208, 240, 277vac)

model Light AlertFilter Monitoring System

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model MVBBlank-Off Panels

product description


APPLICATION• Inactive filler panel or plates for unused portions of lay-in

T-bar suspended grid system

• Perforated “dummy” panels to match appearance ofsurrounding active laminar flow panels

• Solid plates for fill in or field cutting for support arms, gascolumns, etc.

Model MVB-P Shown

GASKETS

MODULE SIZE

PERFORATED PLATE


GASKETS

MODULE SIZE

MODULE SIZE -1/4

MVB DIMENSIONS

246363

365366

364

242

244245

243

122

126125124123

Size

24x7236x36

36x7236x6036x48

24x24

24x6024x4824x36

12x24

12x72

12x4812x36

12x60

Nom.Size

Model MVB-P - (Perforated Panel) Lay-In T-Bar

Model MVB-S - (Solid Panel) Lay-In T-Bar

MODEL MVB-S PANEL FEATURES

• Solid panel to match material / finish ofadjacent active panels

• Perimeter gaskets where panel contacts T-bargrid member

PANEL OPTIONS• Steel, aluminum, or stainless steel

construction

• White, baked epoxy finish, satin polish(stainless steel).


MODEL MVB-P PANEL FEATURES

• This perforated “look alike” panel matchesadjacent active panels, including 1/4 turnhardware and plug button.

• Face welded to solid rear panel to eliminatemigration of particulate into workspace.

• Perimeter gaskets where panel contacts T-bargrid member

PANEL OPTIONS• Steel, aluminum, or stainless steel

construction

• White, baked epoxy finish, satin polish(stainless steel).


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APPLICATION• Battens are perimeter trim strips applied to outer

edges of surface installed diffusers

• Provide a neat, finished appearance and mask theceiling opening edge

• Single diffusers or a built-up array of diffusers

• Standard on all hard ceiling (surface) applications

• Arrangement MUST be specified

FEATURES• Factory welded to the outer edge(s) of the removable

face (outside edges and corners)

• Each diffuser batten is separate from the next,allowing individual face removal for balancing,servicing, and cleaning.

• Outside corner battens are mitered

• Slip-on style battens are field cut and installed forinside corner arrangements for built-up arrays.

• Batten arrangements are identified by two letters

• Same material as diffuser material

• Used on surface installed models MV-1, MV-2, MV-HEP, HCR, HCRF

PD PE PD PA

PB PC PB

PF PH PG

PJ PX PJ

PG PH PF

D

BATTEN EDGE DETAIL

PDIFFUSERASSEMBLY

REMOVABLE FACEBATTEN

B

CEILING

1/21-1/8

BR PC BL

C

Use for HCR-90° patterns

Batten arrangements shown are plan / reflected ceiling views

FACTORY ATTACHED BATTENS

Model HCR-PA Shown

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BattensSlip-On

product description


SLIP-ON BATTEN EDGE DETAIL

THIS SURFACEEXPOSED

OUTSIDENOTCHES

THIS SURFACEEXPOSED

INSIDENOTCHES

TYPICAL ARRANGEMENT REQ UIRING SLIP-ON BATTENS

CEILING

SLIP-ONBATTEN

REMOVABLE FACE

DIFFUSERASSEMBLY

OUTSIDENOTCH

INSIDENOTCH

90°CUTS

90° CUTS

OUTSIDENOTCHES

OUTSIDE NOTCH

OUTSIDE NOTCH

FACTORY WELDED TO FACE

FACTORY WELDED TO FACE

FACTORY WELDED TO FACE FACTORY

WELDED TO FACE

90° CUTS

FIELD CUT TO FIT

FIELD CUT TO FIT

Note: Slip-on battens are field cut to final, installed length. Factory provides long lengths for this purpose.

FEATURES• Slip-on battens are field cut to final, installed length.

Factory provides long lengths for this purpose.

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MODEL MV-2Anemostat Multi-Vent® Model MV-2 Laminar Flow Ceiling Panelsshall be installed where shown on the drawings, and shallintegrate with the ceiling type shown. For hard surfaceinstallations, multiple laminar flow panels shall be attached directlyto each other, as shown, to form a contiguous array of panels thatcreates a single, downward piston of laminar flow air, to provideparticle control of the work space below. The perimeter edges ofthe panel array shall include trim strips to conceal rough ceilingopening.

The non-aspirating laminar flow panels shall utilize a dual chamberplenum design consisting of an upper chamber with a top, roundinlet collar (suitable for attachment of flexible duct of the sizeshown on the plans), lower chamber, and a perforated face, toestablish a unidirectional flow of air. Air shall be distributed fromthe upper to lower chamber through multiple “V” shaped airdiffusion baskets located along the length of the assembly togenerate a uniform air flow across the entire face. Single plenumdesigns or designs utilizing flat perforated plates to equalize floware not acceptable. The distribution of air through the face shallnot be influenced by inlet pressure, damper position, or supplyduct arrangement.

The laminar flow panel assembly shall include a volume damperlocated in the neck to assist in air balancing, and shall beadjustable from the room without removal of the face. A plugbutton shall be provided in the face for the access hole. Theplenum assembly shall include integral hanging tabs forsupporting unit overhead. The removable face shall be attachedto the assembly with 1/4 turn fasteners and shall include closedcell gaskets. Stainless steel safety cables shall prevent accidentaldropping of the panel. The face shall include hinges, in addition tothe safety cables, to allow the face to swing down 90 degrees forcleaning.

Laminar flow panels shall be constructed from steel, stainlesssteel, or aluminum as indicated.

The finish of the perforated face shall be (Arctic White baked-onepoxy) (304 stainless steel - #4 satin polish). The finish of therear, dual chamber assembly shall be (Arctic White baked-onepoxy) (304 stainless steel – mill finish).

MODEL MV-HEPAnemostat Multi-Vent® Model MV-HEP room side, replaceablelaminar flow HEPA filter modules shall be installed where shownon the drawings, and shall integrate with the ceiling type shown.For hard surface installations, multiple filter modules shall beattached directly to each other, as shown, to form a contiguousarray of panels that creates a single, downward piston of laminarflow air, to provide particle control of the work space below. Theperimeter edges of the module array shall include trim strips toconceal rough ceiling opening.

The non-aspirating laminar flow filter modules shall include a(top)(end) round inlet collar (suitable for attachment of flexibleduct of the size shown on the plans) and a perforated face, toestablish a unidirectional flow of air.

The filter module assembly shall include an integral knife edge foruse with HEPA filter Gel seals. DOP, pressure ports, and anaerosol injection tube system shall be included to simplify fieldverification and certification. A volume damper shall be located inthe neck to assist in air balancing, and shall be adjustable from

the room without removal of the face. Plug buttons shall beprovided in the face for access holes.

The removable face shall be attached to the assembly with 1/4turn fasteners and shall include closed cell gaskets. Stainlesssteel safety cables shall prevent accidental dropping of the panel.The face shall include hinges, in addition to the safety cables, toallow the face to swing down 90 degrees for cleaning.

(Optional) All filter modules shall include the Anemostat Light-Alertfilter monitoring system.

Laminar flow filter modules shall be constructed from steel,stainless steel, or aluminum as indicated.


Anemostat Multi-Vent® Model MV-1 Laminar Flow Ceiling Panelsshall be installed where shown on the drawings, and shallintegrate with the ceiling type shown. For hard surfaceinstallations, multiple laminar flow panels shall be attached directlyto each other, as shown, to form a contiguous array of panels thatcreates a single, downward piston of laminar flow air, to provideparticle control of the work space below. The perimeter edges ofthe panel array shall include trim strips to conceal rough ceilingopening.

The non-aspirating laminar flow panels shall utilize a singlechamber plenum design with a top, round inlet collar suitable forattachment of flexible duct of the size shown on the plans andperforated face. Plenum shall include integral hanging tabs forsupporting unit overhead.

The laminar flow panel assembly shall include a volume damperlocated in the neck to assist in air balancing, and shall beadjustable from the room without removal of the face. A plugbutton shall be provided in the face for the access hole. Theremovable face shall be attached to the assembly with 1/4 turnfasteners and shall include closed cell gaskets. Stainless steelsafety cables shall prevent accidental dropping of the panel. Theface shall include hinges, in addition to the safety cables, to allowthe face to swing down 90 degrees for cleaning.

Laminar flow panels shall be constructed from steel, stainlesssteel, or aluminum as indicated.


MODEL MV-1


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typical specification


Where shown on plans, provide custom fabricated Anemostatmodel THD-1500 heavy-duty, extruded aluminum suspensionsystems that provides lay-in installation of the laminar flow airoutlets, recessed fluorescent lights and trim plates for accessoryequipment. Closed cell gaskets shall be provided on the THD-1500 grid members to prevent air leaks around equipmentinstalled on the grid system and the transfer of air between theceiling plenum and occupied space. Gaskets may be omitted fromthe grid where the equipment being installed includes gaskets.The modular grid shall be fabricated of extruded aluminuminverted tee members with a minimum thickness of 1/8”, aminimum height of 1-3/4”, and exposed face of 1-1/2”. Allexposed edges shall be radiused .015”. The modular tee sectionframes shall be notched, mitered, and heliarc welded at theintersections of T / L member mating joints. Where total installedgrid system size exceeds 5’ x 10’, the system shall be fabricatedand shipped in sub-sections. The mating members of sub-sectionsshall be fabricated of half tee or “L” members butted together andshall have dimensions identical to the basic full tee member. The“L” extrusion members shall be of an interlocking design such thatmating L members, when fastened together, assure a hair-lineseam between abutted sections and a leak-proof seal. Nogasketing or sealant shall be required between mating L sectionsfor a leak-proof joint. The butting “L” extrusions shall use clips tohold mating L sections together during hoisting and installation.The tee and “L” extrusion members shall be pre-punched on 12”centers for galvanized hanger wire supports. The number ofhanger wires shall be equal to and spaced to match the number

of grid corners or intersections and provide support for allmembers formed with the split tee or “L” members. Hanger wireshall be adequate to support a load of 10 lbs. / Ft2 of ceilingsurface. A full tee member shall be installed at the perimeter ofthe grid assembly to transition to the perimeter plaster ceiling.Where the grid system or portion of the grid system is directlyadjacent to the wall/ceiling line, provide “L” members for directattachment to the wall. The perimeter outside or inside cornersas installed, shall consist of mitered joints. The THD-1500suspension system shall be manufactured by the laminar flow airoutlet manufacturer, and shall be installed under Section_________________ . The grid system manufacturer shall forwardplan details showing orientation of grid or grid sub-sections to theinstalling contractor.

The grid system finish shall be:

Option 1: Arctic White epoxy finish

Option 2: Mill Finish

Option 3: Natural Anodize

MODEL THD-1500

High Efficiency Particulate Air (HEPA) filters shall be Model HF-5Magna-Pak filters provided by Anemostat or approved equal,where shown on the plans or as scheduled. The HEPA filters andassociated HEPA filter ceiling modules shall be provided by thesame manufacturer and responsibility for fit and compatibility shallbe by that manufacturer.

Filters shall have a minimum DOP efficiency of (99.97%)(99.99%)@ .3 micron particles, and be individually factory tested andscanned for efficiency and pressure drop in accordance with IEST-RP-CC001. A label shall be affixed to each filter frame indicatingserial number, model number, tested performance, and rated airflow.

Boron Silicate glass fiber filter media shall be laminar flow gradewith a minimum pleated height of 5” utilizing corrosion-proof plasticseparators. The ratio of total media area to active filter face areashall be at least 50:1 providing extremely long life expectancy.Filters frames shall be fabricated using light weight, rigid, anodizedaluminum extrusion with mitered corners and corner gussets, andsealed with urethane potting material for leak-proof construction.

Media shall be permanently bonded to the frame with 100% solidpolyurethane. Filters shall be of the energy-saving type and shallhave an initial static pressure drop rating that does not exceed.27” w.g. at 100 fpm face velocity. Media integrity is preserved upto a static pressure drop of 4” w.g.

Filter seal shall be anti-gravity, self-healing fluid/gel type to provideleak proof interface. Gel to be 2 part urethane with lowoutgassing properties. Filter gel pocket shall be specificallydesigned and dimensioned to interface with HEPA filter ceilingmodule integral knife edge.

Filters shall be shipped separate from the ceiling filter modules,and individually enclosed in sealed, poly bags. Filters shall bestrapped for ease of removal from the carton to eliminatepotential damage from handling or fingers damaging media. Filterpackaging shall include a minimum of 2” dead space between thefilter and carton wall.

MAGNA-PAK HEPA FILTERS

Each filter module shall include the Anemostat Light Alert filtermonitoring system, providing a visual alarm at the face of thediffuser when the filter reaches a pre-determined pressure drop.A red LED indicator, minimum 100,000 hr rating, shall be factoryinstalled integral with the filter module and located at the face ofthe assembly. A differential pressure sensor shall be factory setto the scheduled change-out pressure, and shall monitor thepressure drop across the filter, indicating the filter condition. A

low voltage 24 vac power supply circuit shall be provided to eachdiffuser under Division _________ of these specifications. Thesystem shall not be affected by room pressure changes.

Provide Anemostat model LA-24 light alert power supply toprovide a source of 24vac for up to 40 Light Alert units

LIGHT ALERT

Documents

Laminar Flow Diffusers - Pathwayspathways.mx/wp-content/uploads/2017/08/A-Laminar-Flow.pdfLaminar flow panels discharge air at a uniform velocity and create an air shower or air piston