VACUUM PUMPS - Peerless Engineering · 2020. 6. 17. · VACUUM PUMPS -ROTARY EVAPORATORS--FALLING FILM EVAPORATORS- CHEMICAL DUTY DRY MEMBRANE ... Filter Tables 1-3 place x 24 inch

HIGH VACUUM ROTARY VANE PUMPS -WIPED FILM APPARATUS-

-SHORT PATH DISTILLATION-

MEMBRANE VACUUM PUMPS, CHEMSTAR DRY -VACUUM PURGE OVENS-

CHEMICAL DUTY DRY MEMBRANE (DIAPHRAGM) VACUUM PUMPS

-ROTARY EVAPORATORS--FALLING FILM EVAPORATORS-

CHEMICAL DUTY DRY MEMBRANE (DIAPHRAGM) VACUUM PUMPS

-VACUUM FILTRATION TABLES--VACUUM FILTRATION SETUPS-

NEW PRODUCTS

• BTpro Chemical Duty Dry Membrane Vacuum Pumps, cUL• Chemical Duty Dry Membr. Pumps with XPRF Motors, cUL• CRVpro 48, CRVpro65 highest flow direct drive Vacuum Pumps, cUL• ProBoost Diffusion Pump• Chemstar Dry Chemical Duty, High Vacuum System

SUPPORT FROM WELCH-EXAMPLES

• 10 Tips for Long Service Intervals – Rotary Vane Pumps• Expert Support from Welch Area Sales Managers• Fast Delivery on Robust, High Performance Vacuum Pumps

VACUUM PUMPS FOR POST-EXTRACTION OIL

PURIFICATION AND DISTILLATION SELECTION CHART & SUPPORT GUIDE

-BOTANICALS INDUSTRY -

VACUUM PUMP SELECTION ASSISTANT

Wiped Film Apparatus

Pump Flow Rate Typical Apparatus Sizes

Recommended Vacuum Pump

Flow Rate Ultimate Vacuum Photo

118 LPM/4.1 CFM For 2-inch, (0.033 m2)

Apparatus

CRVpro6 #3061-01

118 LPM Flow Rate

0.0004 torr ultimate vacuum pressure, 115v/60hz Global Motor

363 LPM/12.8 CFM For 4-inch, (0.250 m2)

Apparatus

CRVpro16

#3161-01 #3162-01

363 LPM Flow Rate

0.0002 torr ultimate vacuum pressure,

-115v/60hz --230v, 50/60hz

627 LPM/22.1 CFM For 6-inch, (0.500 m2)

Apparatus

CRVpro30

#3301-01 #3302-01

627 LPM Flow Rate

0.0002 torr ultimate vacuum pressure,

-115v/60hz --230v, 50/60hz

957 LPM/34 CFM For 8-inch, (1.000 m2)

Apparatus

CRVpro48 #3487T-01

957 LPM Flow Rate 0.0002 torr ultimate vacuum

pressure, 3 phase motor, 240v/460v, 60hz

1,300 LPM/46 CFM Large Scale

Apparatus

CRVpro65 #3657T-01

1,300 LPM Flow Rate 0.0002 torr vacuum pressure

3 phase motor, 240v/460v, 60hz

Topic Techncical Support Notes

Expert Technical Support from

Welch

Contact your Welch Area Sales Manager for more from our library of technical support information, available for free to Welch customers. Setup, operating, cold-trapping, oil changes, leakproofing, increasing yield and productivity and purity.


Rotary Evaporators, Falling Film Evaporators




25-40 LPM For Benchtop

Rotovaps

BTpro40 #7010-01

40 LPM Flow Rate

15 torr ultimate vacuum pressure, 115v/60hz, CSA Certified

50-70 LPM For 10L, 20L Rotovaps

BTpro70 #7020-01

70 LPM Flow Rate

15 torr ultimate vacuum pressure, 115v/60hz CSA Certified

100-170 LPM For 50L Rotovaps

BTpro100 #7030-01

100 LPM Flow Rate 6 torr ultimate vacuum pressure,

115v/60hz C-UL-US Certified

170 LPM For 50-100L Rotovaps

BTpro170 #7040-01



170 LPM Falling Film Evaporators

BTpro170 #7040-01



170 & 220 LPM Falling Film Evaporators

Dry Membrane Pumps, 8-head

#BT2163B-01 #2163B-01 #2067B-01

BT2163B-01: 170 LPM x 6 torr, 115v, cUL

2163B-01: 170 LPM x 6 torr, 115v, NOT cUL

(while supplies last) 2067B-01:

222 LPM x 56 torr, 115v, cUL,



Welch

Contact your Welch Area Sales Manager for more from our library of technical support information, available for free to Welch customers. Setup, operating, trapping, avoiding pump flooding/liquid ingestion, leakproofing, increasing yield and productivity and purity.

VACUUM PUMP SELECTION ASSISTANT Vacuum Purge Ovens




35 LPM Small Vacuum Ovens

1.5 Cu Ft or less

DryFast Ultra #2042B-01

35 LPM Flow Rate


65 LPM

Medium Vacuum Ovens 4.5 Cu Ft or

less

2052 #2052B-01

65 LPM Flow Rate

1.5 torr ultimate vacuum pressure, 115v/60hz cUL Certified

100 LPM Medium Vacuum Ovens 4.5 Cu Ft or

less

BTpro100 #7030-01



170 LPM Large Vacuum Ovens

10 Cu Ft or less

BTpro170 #7040-01



150 LPM Medium/Large

Vacuum Ovens 7.5 Cu Ft or Less

Chemstar Dry #2071B-01

150 LPM Flow Rate 0.050 torr ultimate vacuum

pressure, 115v/60hz

300 LPM Large Vacuum Ovens

12 Cu Ft or Less

Chemstar Dry #2081-01

300 LPM Flow Rate Under 0.050 torr ultimate vacuum

pressure, 115v/60hz



Welch

All Purge Oven vacuum pumps MUST be cold trapped to prevent Terpene Ingestion. Contact your Welch Area Sales Manager for more from our library of technical support information, available for free to Welch customers. Setup, operating, trapping, leakproofing, increasing yield and productivity and purity. Welch also offers Explosion Proof motored vacuum pumps for C1-D1 rooms.


Vacuum Filter Setups/Tables




1-3 Setups

Filter Funnels with Erlenmeyer Vacuum Flasks

BTpro40 #7010-01

40 LPM Flow Rate


4-10 Setups

Filter Funnels with Erlenmeyer Vacuum Flasks

BTpro70 #7020-01

70 LPM Flow Rate

15 torr ultimate vacuum pressure, 115v/60hz CSA Certified

Filter Tables

1-3 place x 24 inch diameter

BTpro170 #7040-01



Filter Tables

1-3 place x 24 inch diameter, highest flow

Dry Membrane Pump, 8-head

#2067B-01





Welch

Contact your Welch Area Sales Manager for more from our library of technical support information, available for free to Welch customers. Setup, operating, overflow mitigation, safety, increasing filtration speed and aspiration speed.

© Gardner Denver Thomas Inc. All rights reserved. 03/2020 www.welchvacuum.com

New Products, cUL Listed, from Welch® Vacuum designed to improve cannabis processing

Introducing

Reliable and consistent results are paramount to your product’s quality. Reduce down-time and unsafe

conditions due to failed or troublesome equipment. The world famous Welch brand of laboratory vacuum

pumps have been the preferred vacuum pump for prestigious research facilities through generations.

Your lab deserves the best and gets it with Welch

Ingersoll Rand, Inc.

Medical Segment

1601 Feehanville Drive, Suite 600

Mt.Prospect, IL 60056

Tel: +1 847 676 8800

[email protected]

Models 2090W-01 & 2085W-01 with explosion proof motors,

cUL certification capable, 115/230V, 60Hz, 1ph

Models BTpro40 &170 with CSA listing; Models BTpro100 &

170 with cUL listing; 115V, 60Hz, 1Ph

Models 2052B-01 and 2054B-01 in stock,

cUL listing; 115V, 60Hz, 1Ph

CRVpro48 with 34 CFM, CRVpro65 with 46 CFM/-5%

(240-265)/(415-460)V +/-5% 60Hz 3P

Chemical Duty Diaphragm Pumps With Explosion Proof Motor

High Capacity Dry Diaphragm Vacuum Pump

BTpro Botanical Vacuum Pump Series

Two-stage Rotary Vane Vacuum Pump

© Gardner Denver Thomas Inc. All rights reserved. 1400011-20 03/2020 www.welchvacuum.com

Welch’s BTpro vacuum pump series has a flow and vacuum level

to provide fast performance for your size of rotary evaporator,

glass reactor, purge oven, or winterization filtration apparatus.

These chemical duty PTFE diaphragm pumps are oil-free.

The pumping action and deep vacuum comes from the movement

of PTFE diaphragms within PTFE heads. All wetted services in

the flow path are made of fluoroplastic making the BTpro pump

highly chemically resistant. As a result, the BTpro vacuum pump

series is near-zero maintenance. A cold trap placed in-line with

BTpro pump is needed if terpenes are part of the flow path.

The BTpro40 and BTpro70 models employ patented valve and

diaphragm technology that generates a deep 15 Torr vacuum

pressure with each PTFE head. In addition, both pump models

have built-in tuneable vacuum to control evaporation rate.

The tunable vacuum adjustment can also be used to stop

accidental bumping/foaming.

A chemically resistant, manual vacuum regulator with stainless

steel dial gauge is available for BTpro100. See ordering

information for further details.

AMERICA

Gardner Denver Thomas Inc.

1601 Feehanville Drive

Suite 550

Mt. Prospect, IL 60056

USA

Tel: +1 847 676 8800

Fax: +1 847 677 8606

[email protected]

BTpro Botanical Vacuum Pump Series

FEATURES & BENEFITS High flow for faster processing

Deep vacuum for higher purity

Chemically resistant for long service interval

Oil-free for low maintenance

Agency listing:

• BTpro40 & 70: CSA • BTpro100 & 170: cUL

For sales, service and technical support, please contact the

US factory at 847-676-8800 or contact your local Welch

sales representative.

BTpro40 & 70 BTpro100 & 170

Please check out all our brands for your mission-critical flow control technologies:

Vacuum Pumps & Systems

www.welchvacuum.com

OEM Pumps

www.gd-thomas.com

Syringes

www.microsyringes.com

Lab Automation

www.zinsser-analytic.com

Syringe Pumps

www.tricontinent.com

BTPRO & 2163 TECHNICAL SPECIFICATIONSMODEL BTPRO40 BTPRO70 BTPRO100 BTPRO170 2163

Free Air Displacement@60Hz, lpm (CFM) 40 (1.4) 70 (2.5) 100 (3.5) 170 (6.0) 170 (6.0)

Ultimate Vacuum Pressure, Torr 15 15 6 6 6

Maximum Vacuum, in. Hg 29.3 29.3 29.7 29.7 29.7

Horsepower, HP (watts) 1/5 (150) 1/5 (150) 0.5 (390) 0.6 (440) 0.6 (440)

Built-in adjustable vacuum Yes Yes – – –

Gas Ballast – – Yes Yes Yes

Head Material PTFE PTFE PTFE PTFE Coated Al

Diaphragm PTFE PTFE PTFE PTFE PTFE

Inlet/outlet Connection 3/8” barb 3/8” barb NW16 flange1 NW16 flange1 NW16 flange1

Agency (National Recognized Lab) CSA CSA cUL cUL cUL

Weight, lbs (kg) 15.0 (6.8) 21.3 (9.6) 40.3 (18.3) 72.3 (32.8) 72.3 (32.8)

Overall Dimensions

LxWxH in. (cm)

12x7x8.3

(31x18x22)

13.8x6.8x8.8

35x17x22)

9x15x7

(23x38x18)

21x11x12

(53x28x31)

21x11x12

(53x28x31)

Shipping Weight, lbs (kg) 19 (8.6) 25 (11.3) 48.5 (22) 88.2 (40.1) 88.2 (40.1)

Shipping Carton Dimensions

LxWxH in.(cm)

21x14x15

(52x35x37)

21x14x15

(52x35x37)

18.9x12.6x11.8

(48x32x30)

23.6x15.8x16.1

(60x40x41)

23.6x15.8x16.1

(60x40x41)

ORDERING INFO

115V 60Hz 1Ph with N.American plug 7010-01 7020-01 7030-012 7040-012 BT2163B-01

List Price, effect Jan. 1, 2020 $1,525 $2,790 $3,950 $4,375 $4,375

Note: 1. Two 3/8” hose barb fittings are provided that thread into NW16 flange to allow use of 3/8” ID hose. Note: 2. Export controlled. Shipper’s letter of intent required to ship pump model outside USA due to flow and and PTFE construction.

ACCESSORIES FOR BTPRO VACUUM PUMP SERIESUSE WITH DESCRIPTION CAT. NO.

BTpro40, 70,

100, 1703/8 in. ID gum rubber vacuum hose, 5 feet 331035-05

BTpro100Chemically resistant vacuum regulator with SS dial

vacuum gauge, – mountable horizontally or vertically 700458

331035-05 700458

© Gardner Denver Thomas Inc. All rights reserved. 1400011-20 03/2020 www.welchvacuum.com

Welch corrosion-resistant diaphragm vacuum pumps are

driven by explosion-proof motors rated for Class I Hazardous

Locations (HazLoc). The aluminum pump head is PTFE coated

and diaphragm is covered by a PTFE liner to separate chemical

media from the diaphragm. The explosion proof motor is

directly coupled to the diaphragm pumping module. Stainless

steel tubing is used to connect pump heads together in one and

two-stage configurations.

The vacuum pump doesn’t come with an on/off switch, plug or

cord, but must be conduit wired to the on/off explosion proof

control panel. Always use a certified electrician for proper

installation of vacuum pump with explosion proof motor to

meet your local municipal codes.

AMERICA



Suite 550


USA

Tel: +1 847 676 8800

Fax: +1 847 677 8606

[email protected]

FEATURES & BENEFITS Corrosion-resistant

Flow from 4.5 to 6.9 cfm

Maximum vacuum to 29 in. Hg (25 Torr)

Fitted with Class I, Groups C&D

explosion proof motor

Portable

Models 2090/2085

Chemical Duty Diaphragm Pumps, cUL ListedWith Explosion Proof Motor

Contact your local Welch area sales manager for further information.


SPECIFICATIONS AND ORDERING INFORMATIONMODEL 2085 2090

FAD, lpm (cfm) 195 (6.9) 127 (4.5)

Ultimate Pressure, Torr 100 25

Max. Vac., in. Hg 26 29

Head Material Coated PTFE Coated PTFE

Diaphragm liner PTFE PTFE

Valves Stainless Steel Stainless Steel

Inlet/Outlet connection NW25 NW25

Motor Type Ex Proof1 Ex Proof1

Motor HP 1/2 1/2

Electrical requirement 115/230V 60Hz 1Ph 115/230V 60Hz 1Ph

Agency Listing cUL cUL

Weight, lbs (kg) 54 (25.5) 54 (25.5)

Dimensions, LxWxH 27 x 11.3 x 11.3 24.6 x 11.1 x 11.3

ORDERING INFO

Cat. No. 2085W-01 2090W-01

Note: 1. Explosion proof motor (CSA,UL) is Class I, Groups C&D and Class II, Groups E, F&G.

13.3

27.0

9.3

INTAKE

EXHAUST

8.2

11.3

11.1

4.5

9.3

24.6

16.0 15.1

INTAKE

EXH

AU

ST

11.3

8.2

11.1

4.5

VACUUM REGULATOR WITH DIAL GAUGE

CAT. NO. 2090K-05

Chemical resistant, vacuum bleed valve regulator with dial

vacuum gauge to vary vacuum level to maximum vacuum

of pump. Use with cat. nos. 2090W-01 and 2085W-01.

NW25 connections.

100

10

10010 10001

1000

PU

MP

ING

SP

EE

D (

lpm

)

PUMPING SPEED vs. VACUUM

VACUUM PRESSURE (Torr)

2090W-01 2085W-01

2085W-01 2090W-01


www.welchvacuum.com

OEM Pumps

www.gd-thomas.com

Syringes


Lab Automation


Syringe Pumps


© Gardner Denver Thomas GmbH. All rights reserved. 1400007-20 11/2019 www.welchvacuum.com



Suite 550


Tel: +1 847-676-8800

Fax: +1 847-677-8606

[email protected]

Welch’s CRVpro 48 and 65 are robust, two-stage rotary

vane pumps designed for extended service intervals

while generating high ultimate vacuum pressure and

quick pump downs.

The pumps have forced oil lubrication to maintain

proper cooling of pump mechanism. With a focus on

cool running operation and large oil capacity separates

the CRVpro line from comparable competitive pumps.

NEW

NEW

Introducing the next two members of Welch’s CRVpro two-stage rotary vane vacuum pump family.

ROBUST VACUUM PUMPS BUILT

FOR LONG TERM OPERATION

IN DEMANDING APPLICATIONS

COOL RUNNING AND

LARGE OIL CAPACITIES

FOR EXTENDED SERVICE

INTERVALS



www.welchvacuum.com

OEM Pumps

www.gd-thomas.com

Syringes


Lab Automation


Syringe Pumps


COMMON APPLICATIONS FOR CRVPRO 48 & 65 Thin film coating

Refrigeration dehydration

Freeze drying

Vacuum drying

Degassing of transformer oils, epoxies, etc.

Distillation

Vessel or chamber evacuation

Backing pumps for blowers

USEAGE DESCRIPTION CAT. NO.

CRVpro 48 & 60Exhaust Filter made of carbon steel treated to resist corrosion,

NW40 flanges1417D-40

EXHAUST FILTER

CRVPRO 48 & 65 TECHNICAL SPECIFICATIONS1

SPECS CRVpro 48 CRVpro 65

Free Air Displacement @60Hz, CFM (lpm) 33.8 (957) 45.9 (1300)

Free Air Displacement @50Hz, m3/hr 48 (800) 65 (1083)

Total Ultimate Vacuum Pressure, Torr(mbar) 0.0015 (0.002) 0.0015 (0.002)

GB Open Full, Total Pressure, Torr (mbar) 0.004 (0.005) 0.005 (0.007)

Motor Pump RPM@60Hz 1720 1720

Motor Power, kw 1.5 2.2

Oil Capacity, liters 4.5 4

Intake Flange NW40 NW40

Exhaust Flange NW40 NW40

Noise Level, dBA 58 58

Ambient environmental temp 10 to 40 deg C 10 to 40 deg C

Dimensions, LxWxH, cm (in.)79.6x26.2x36.9

(29x9x15)

79.6x26.2x36.9

(29x9x15)

Weight, kg (lbs) 62.3 (137) 65.0 (143)

ORDERING INFORMATION CRVpro 48 CRVpro 65

Three phase; (230-240)/(380-420)V ±5% 50Hz (240-265)/(415-460)V ±5% 60Hz 3487T-01 3657T-01

Note: CRVpro 48 comes with two NW40 hinge clamps, two NW40 centering rings and 5 liters of Welch Premium Vacuum Pump oil (cat. no. 8995P-11)

Gardner Denver Thomas Inc. Tel: 1‐847‐676‐8800 1601 Feehanville Drive Fax: 847‐677‐8606 Suite 550 E‐mail: [email protected] Mt. Prospect, IL 60056 www.welchvacuum.com

ProBoostTM

• Deeper Vacuum for cleaner Distillate, faster

• Increases the flow and decreases the vacuum pressure of a vacuum pump

• Reach 2x10⁻⁵ torr ultimate vacuum

• Easily attaches to a Rotary Vane Pump

Figure 1: ProBoost connected to a

CRVpro 8 rotary vane pump

configured with optional pump

connection kit(cat. no. 1392K‐01) and

stainless steel high vacuum valve

(704523)

Model 1392

Welch’s ProBoost is an air cooled gas jet pump (commonly called a diffusion pump). The gas jet is formed by

directing boiling silicone vapors thru a hollow cone. Since there are no internal moving parts, the pump is very

simple. The pumping action commences when the vacuum pressure goes below 0.2 Torr (200 millitorr). On an

empty, leak free system, ProBoost backed by a rotary vane pump lowers the vacuum pressure to 0.00002 Torr

(20x lower in pressure than a 2‐stage rotary vane pump can do alone).

Automated shutdown process works through an embedded control board that disables heater and enables fan

during shutdown.

Gardner Denver Thomas Inc. Tel: 1‐847‐676‐8800 1601 Feehanville Drive Fax: 847‐677‐8606 Suite 550 E‐mail: [email protected] Mt. Prospect, IL 60056 www.welchvacuum.com

ProBoost Technical Specifications*

Specs Model 1392

Maximum Pumping Speed, Air 80 liters/sec

Ultimate Vacuum Pressure 0.00002 torr

Minimum Backing Pump FAD@60Hz 3 CFM

Maximum Discharge Pressure 0.2 torr

Heat‐up time 7 minutes

Inlet Connection NW50

Discharge Connection NW25

Silicone Oil Capacity* 25 ml

Cool down time 20 minutes

Pump dimensions: L x W x H 5.5 x 5.4 x 7.5 in

ProBoost weight lbs (kg) 5.6 lbs (2.5 kg)

Ordering Information

115V 60Hz 1Ph with N. American plug 1392B‐01

230V 50Hz 1Ph with Schuko plug 1392C‐02

*ProBoost comes with NW50 clamp, NW50 centering ring, NW25 clamp, NW25 centering ring, line cord, cooling fan, switch, and 100 ml of

Welch ProBoost Silicone Oil, Cat. No. 1391K. Pump connection kit is required to connect a ProBooster to a rotary vane pump.

Components Needed to Complete a High Vacuum System

Useage Description Consists Of Cat. No.

Connects ProBooster to CRVpro 4,6,8, 16, 24 and 30

Components needed to connect to rotary vane pump and neck booster inlet to NW25

(1)180° NW25 SS return, (2) SS NW25 centering ring assemblies, (2) NW 25 hinge clamps; (1) conical reducer NW25 to NW50

1392K‐01

Closes off ProBoost prior to releasing vacuum to still

Stainless Steel high vacuum butterfly valve

Very high conductance NW25 valve with quick open and close

704523

Alternative to rubber hose**

Flexible metal hose, 19.7 in Accordian metal tubing with NW25 flanges to connect ProBoost to Still

710762

**To achieve maximum performance with ProBoost with your still, Welch recommends NW flange connections and metal hose plumbing.

Consult with your Welch sales rep on vacuum system design.

10 TIPSTo ensure that your rotary vane pump works seamlessly

© Gardner Denver Thomas GmbH. All rights reserved. 1400004-20 4/2019 www.welchvacuum.com

GLOBAL HEADQUARTERS

Gardner Denver Thomas GmbH

Livry-Gargan-Str. 10

82256 Fürstenfeldbruck

Germany

Tel: +49 8141 2280 1000

Fax: +49 8141 8892136

[email protected]

1 CHOOSE THE RIGHT PUMP

The performance of your pump has to meet your

requirements. For example: A too large vacuum pump

can increase the likelihood of condensable vapors

bypassing trap and moving into vacuum pump oil.

2 PLACE THE PUMP IN CLOSE PROXIMITY

TO THE APPLICATION

To ensure your pump remains at the top of its

game, place your pump close to the application.

The connecting tube between it and the pump should

remain as close as possible. The performance of the

pump relies on the length of the hose and its inner

diameter. The smaller it is, the longer the pumping

down, and vice-versa.

3 USE AN EXHAUST FILTER

Using an exhaust filter on a rotary vane pump will

minimize the emission of oil mist from the exhaust port.

4 WARM UP THE PUMP

Let the pump warm up for 20 minutes with

the inlet blanked so that it can reach its operating

temperature. Running the pump before using it in

application will also extend the longevity of the pump

and ensure the appropriate vacuum level is reached

when starting the process.

5 USE A COLD TRAP

If you expect high vapor loads or solvents /

corrosives to pass through the pump, use a cold

trap. Using it will prevent solvents and water from

entering the pump and degrading the vacuum pump

oil, decreasing pump performance. Furthermore, cold

trapping improves pumping capacity and efficiency.

6 CHECK OIL REGULARLY

Do regular check-ups of the oil level. Depending

on the pumps operating conditions, checking the oil

should be done at regular intervals by looking at the oil

sight glass. The oil level should be at the upper marking.

This allows for better dilution of contaminants, optimum

operating conditions and minimizes the service needs.

7 CUSTOM-FIT YOUR OIL

Just like choosing the correct oil parameters for

your car’s engine, to ensure efficient operation and

maintenance, it is vital to choose the correct oil for

your pump. Directorr™ Premium vacuum oil has the

proper viscosity, low vapor pressure and chemical

stability to ensure that your CRVpro pump operates

at its peak performance level.

8 CHECK THE OIL QUALITY

Checking the quality of the oil regularly is vital for

preserving the top performance of your pump, just as

you check the level and color of oil in your car’s engine.

Did the oil color change from clear to cloudy? Are there

visible particles in the oil? If so, an oil change is necessary.

If you see that the oil is heavily contaminated, you should

flush the pump with fresh oil several times. If you are

a new pump user and unsure of how often you should

change the oil, settle for a once-a-month frequency,

then adjust according to the following principles:

• Has ultimate vacuum pressure gone up since the

oil was first changed?

• Is the oil dirty, brown, viscous or loaded with

condensed water?

• Does the oil have any odors picked up from the

vapors it has pumped?

If the answer to one of these questions is yes, then you

should change the oil more frequently.

9 PREVENTATIVE MAINTENANCE

If you should notice a pump performance

decrease, please order a maintenance kit and follow the

instructions on the service manual or contact us directly

for support. Scheduling routine pump maintenance saves

in the long run.

1

AVOID CORROSION

Consider running the pump with gas ballast

open when it is processing heavy vapor loads. After you

finish using your pump, run it for 30 minutes with the

inlet blanked and gas ballast valve open before shutting

it off. This will purge the pump of remaining water vapor

from the oil inside the pump and prevent corroding of

the pump.

3. 7.5.2.

Documents

VACUUM PUMPS - Peerless Engineering · 2020. 6. 17. · VACUUM PUMPS -ROTARY EVAPORATORS--FALLING FILM EVAPORATORS- CHEMICAL DUTY DRY MEMBRANE ... Filter Tables 1-3 place x 24 inch