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MEDIUM DUTY CAST IRON SLIDE GATES
SERIES 20-10C
Revised October 2007 Armtec reserves the right to alter designs.
Series 20-10CFlow Control Slide GatesRevised October 2007 1
Series 20-10C Sluice Gate
GeneralThe Armtec Series 20-10C Sluice Gate is a qualityand highly economical gate for a variety of lowhead applications including:
• Irrigation turnout structures
• Water and wastewater treatment plants
• Flood control and retention ponds
• Storm and sanitary sewers (Deluxe Model)
• Pump Stations
DesignThe 20-10C Sluice Gate is available in standard sizesfrom 203 mm to 1067 mm diameter and designedto withstand:
• 20’ (6m) of face pressure (seating head)
• 10’ (3m) of back pressure (unseating head)
The gate consists of a flat back cast iron seat, slideand cross-bar, which is attached to a galvanizedsteel frame and yoke. The yoke supports the liftsystem forming a self-contained unit. Its flat backconfiguration makes it suitable for mounting topipes, thimbles and concrete headwalls andmanholes.
Standard Model – Materials• Frame – Galvanized Steel
• Stem – Carbon Steel
• Gate Seat and Slide – Cast Iron with PolyamineEpoxy Coating
• Seating Faces – Machined Cast Iron
• Fasteners – Zinc Plated SteelNote: Suitable for most storm sewer and irrigation water applications.
Deluxe Model – Materials• Frame – Stainless Steel
• Stem – Stainless Steel
• Gate Seat and Slide – Cast Iron with Self-primingEpoxy Coating
• Seating Faces – Machined Bronze
• Fasteners – Stainless SteelNote: Suitable for most sanitary sewer applications.
Series 20-10CFlow Control Slide GatesRevised October 2007 2
Gate Seats/SealsThe slide moves vertically along machined cast ironfaces (Standard Model) or machined bronze faces(Deluxe Model) which are attached to the frame andslide.Sealing is achieved by two adjustable side wedgesthat come in contact with faces on the slide cross barjust as the gate approaches the closed position.The sealing faces do not protrude into the waterwayopening, allowing for full sluice discharge.
2.
1.3.
4.
5.
# Part Description
1 Slide2 Cross Bar3 Side Wedge
4 Yoke Side Supports Frame5 Gate Seat
Typical Slide/Seat Cross Section
Series 20-10CFlow Control Slide GatesRevised October 2007
3
MountingsThe 20-10C Gate can be installed onto a variety ofmounting surfaces as defined by the following codes:
On Concrete Surface • FC (Flat Concrete Wall)
• CC( Curved Concrete Wall)
On Steel Surface • MF (Metal Flange)
• MT (Metal Thimble)
Metal Thimble Mounting (MT) – Side Cross Section
Curved Concrete Wall Mounting (CC) – Side SectionFlat Concrete Wall Mounting (FC) – Side Cross Section
Metal Flange Mounting (MF) – Side Cross Section
Series 20-10CFlow Control Slide GatesRevised October 2007 4
Standard Configurations and SizesThe Engineering Table below summarizes the availablegate diameters and dimensional data for each size ofgate. These gates are stocked in standard frameheights as listed, but custom fabricated configurationoptions are available.Various lift extensions are available, as shown on Page5. Contact an Armtec Sales Representative for moreinformation.
Anchor Bolt
H
Fram
e H
eigh
tB
102A
A+204 mmInstallation Clearance
C
ARMTEC
Gat
e Op
enin
gDi
amet
er
DE
FAnchor bolt
Stock Anchor BoltGate Stem Lift Frame Bolt Circle
Diameter A B C D E F Diameter Type Height Diameter Diametermm mm mm mm mm mm mm mm mm mm mm mm203 324 146 289 124 73 14 22.2 LW-14 914 12.7 292
254 387 171 340 130 73 16 22.2 LW-14 1000 12.7 356
305 483 241 390 137 73 18 22.2 LW-14 1000 12.7 413
406 565 262 492 165 73 18 22.2 LW-14 1000 12.7 533
457 622 279 581 190 95 19 28.6 LW-14 1500 15.9 584
508 686 311 632 203 98 19 28.6 LW-14 1500 15.9 648
610 800 368 733 244 102 21 28.6 LW-14 1500 15.9 762
762 997 460 911 283 117 22 38.1 LW-24 1500 19.1 952
914 1149 537 1064 324 124 25 38.1 LW-24 2000 19.1 1105
1067 1346 673 1216 368 141 30 38.1 LW-24 2000 19.1 1257
Dimension Data
Series 20-10CFlow Control Slide GatesRevised October 2007 5
Lift Extensions – Detailed Configuration Options and Material Specifications
ARMTEC ARMTEC
ARMTEC
Pedestal to Slab (FP) T-Wrench with Lift Operating Extension (TWH)
Pipe Frame Extension (PFE)
ARMTEC
Pedestal to Wall Bracket (FPW)
Manual type liftwith handwheel
Pedestal
Stem
Stem clamp with bushing
T-wrench handle
Floor box with cover
Lift operator extension (LOE)
LOE Clamp
Lift
Stem
Manual type liftwith hand wheel
Wall bracket
Stem guide
Stem
Manual type lift with hand wheel
Pipe frame extension
Pipe frame clamp
Stem
Series 20-10CFlow Control Slide GatesRevised October 2007 6
Stem CoversStem covers should always be used for outsideinstallations to keep the stem threading clean offine grit which can increase lift nut wear and theamount of torque to operate gate. The stem cover ismade of aluminum with lexan plastic viewingwindows.
Markings are provided in metric and imperial unitsto mark the location of the gate position.
Stem GuidesStem guides are provided as required to support thestem from buckling. The stem guides are designed asper AWWA Standards. The stem guide is fabricated from304 stainless steel with an ultra high molecular weightpolyethylene (UHMWPE) bushing.
Aluminum stem cover
with LEXAN®window ruler with metricand imperial
units.
Fabricated stainless steel stem guide clamp with UHMWPE bushing.
Electric Lift OptionManual Series 20-10C gates can be provided withArmtec’s electric Drill Pak System. The Drill PakSystem comes complete with Industrial Dutyelectric drill (110V, Single Phase, 60 Hz), mountingtripod, clutch and 2” square adapter socket. The DrillPak is designed to be operated in the horizontalposition.
Series 20-10C gates can also be provided with anelectric actuator in place of manual lift systems.Contact an Armtec Sales Representative for moreinformation.
Gate Identification Code:(The Gate Identification Code is a fast and efficient method to specify the gate which is required.)
1. Gate Series – 20-10C
2. Opening size in millimeters – diameter
3. Gate Material – Standard or Deluxe
4. Mounting Type
5. Lift Configuration
Code Mounting SurfaceOn Concrete Surface
FC Flat Concrete Wall
CC Curved Concrete Wall (Aperature opening only)
On Metal Surface
MF Metal Flange (Aperature opening only)
MT Metal Thimble (Aperature opening only))
Series 20-10CFlow Control Slide GatesRevised October 2007 7
Series Size Gate Mounting Lift (mm) Material Type Configuration
20-10C
Code MaterialS Cast iron gate, Cast iron seating faces, galvanized frame, zinc-plated fasteners,
carbon steel stem
D Cast iron gate, Bronze seating faces, 304 stainless steel frame and fasteners,303 stainless steel stem
Code Lift TypeSCF Hand Mounted on Yoke
FP Pedestal to Slab
TWH T-Wrench Handle Lift Operator Extension
PFE Pipe Frame Extension
FPW Pedestal to Wall Bracket
Series 20-10CFlow Control Slide GatesRevised October 2007 8
Common Gate Identification Codes:Examples 1 and 2 show common frame and stem configurations and resulting gate codes:
Example 1• Gate Series (20-10C)
• Size (305 mm diameter)
• Standard Gate
• Mounting Surface – Flat Concrete Wall (FC)
• Handwheel on Yoke (SCF)
Example 2• Gate Series (20-10C)
• Size (914 mm diameter)
• Deluxe Gate
• Mounting Surface – Metal Flange (MF)
• Pipe Frame Extension
Series Size Gate Mounting Lift(mm) Material Type Configuration
20-10C 305 S FC SCF
Series Size Gate Mounting Frame(mm) Material Type Configuration
20-10C 914 D MF PFE
ARMTEC
20-10C – 305-S-FC-SCF
ARMTEC
20-10C – 914-D-MF-PFE
305
914
Series 20-10CFlow Control Slide GatesRevised October 2007 9
Gate Specifications
1. General Specifications1.1 Scope
This specification covers medium duty cast iron sluicegates and operators in which the gate is designed towithstand seating or unseating heads in water supplyapplications.
1.2 Governing Standards
No AWWA specifications currently cover the use ofmedium duty cast iron sluice gates.
1.3 General
The gate assembly shall consist of the gate frame andslide, stem, lift mechanism and accessories. The gateassembly shall be designed, fabricated and shopassembled in accordance with the manufacturer’s shopdrawings and specifications.
1.4 Acceptance of Approved Alternate Products
To be considered by the Engineer as an approvedalternate product, the alternate gate manufacturershall submit a list of 50 fabricated slide gate projects(minimum) indicating proven operation in similarapplications.
1.5 Quality Assurance
Prior to shipment, the gate assembly shall be shopinspected and adjusted for proper operation.
1.6 Submittals
The manufacturer’s shop drawings shall indicate thegate assembly’s opening size, type of material,schedule of parts and principal dimensions. Gateassembly installation procedures shall also be providedto supplement the shop drawings.
2. PerformanceSeating and unseating heads shall be measured fromthe water surface to the centre of the gate slide. Thegate assembly shall be designed to the design headsshown below:
• Seating Head: 6.1m (20’)
• Unseating Head: 3.05m (10’)
3. Gate Assembly Product DetailsThe gate assembly shall consist of the gate seat, frame,slide, crossbar, wedges, stem, lift mechanism andaccessories. The gate assembly shall be factoryassembled prior to shipment. The gate assembly shallbe available in standard and deluxe materialcombinations as detailed in Section 4 (Materials).
3.1 Gate Seat and Frame
The cast iron gate seat shall have a flat backconfiguration suitable for attachment to a concretewall or a round pipe flange.
The self-contained gate frame shall consist of twovertical side guide angles and horizontal head angle,attached to the cast iron gate seat.
3.2 Gate Slide, Crossbar and Wedges
The cast iron gate slide shall incorporate integralguides to engage the side angles and permit travel ofthe slide. A horizontal cast iron crossbar, bolted to thegate slide, shall incorporate side wedges that engagewedges mounted to the side angles.
3.3 Gate Seating Faces
The gate shall be furnished with machined metalseating faces available in standard and deluxe materialcombinations detailed in Section 4 (Materials). In theclosed position, the clearance between the seat andthe slide shall not exceed 0.004” (0.10 mm).
3.4 Gate Assembly Fasteners
Gate Assembly Fasteners shall be in accordance withSection 4 (Materials).
3.5 Mounting Gaskets and Anchors
The gate shall be mechanically fastened to themounting surface with anchor bolts or with fasteners.Gasket material shall be buytl rubber sealant inaccordance with Section 4 (Materials).
3.6 Stem
The gate slide shall be raised by a rising stem liftsystem. The stem shall be available in the materialcombinations as detailed in Section 4 (Materials) with stem threads machine cut of the acme type. The bottom of the stem shall be hooked to engage a pocket on the front face of the gate slide.
10
The minimum stem diameters are detailed below:
3.7 Stem Covers
The stem cover shall be made of aluminum withLEXAN® window. Markings shall be provided in metricand imperial units to mark the location of the gateposition.
3.8 Lifting System
The lift system shall consist of a handwheel, or hardcrank lift nut, stop nut and housing designed suchthat the gate can be operated with a maximum of110N pull.
The lift nut shall be cast such that a 51 mm square nutprotrudes from the top so that the hand wheel, liftoperating extension or T-wrench can be attached. Thestop nut shall be furnished to limit the downwardtravel of the stem when the closed position is reached.
The lift system shall be supplied as per the Slide GateSchedule (Section 5).
Gate Size Range Stem(mm) Diameter
(mm)203 - 406 22457 - 610 28762 - 1042 38
4.0 Materials
Component Standard Model 20-10C Deluxe Model 20-10CSeat Cast Iron A48 Cast Iron A48
• Class 30 • Class 30
Frame Galvanized Steel SSTL (Type 304 or 304L)• Structural steel • ASTM A276• CSA G164
Slide, Crossbar and Wedges Cast Iron A48 Cast Iron A48• Class 30 • Class 30
Seating Faces Cast Iron Aluminum Bronze• A48, Class 30 • ASTM B36, C26000
Assembly Fasteners Zinc Plated Steel SSTL (Type 304)• Grade 5 (Bolts) • ASTM F593 (Bolts)• Grade 2 (Nuts) • ASTM F594 (Nuts)
Mounting Gasket Butyl Joint Sealer (12 mm square) Butyl Joint Sealer (12 mm square)• Hamilton Kent – Kent Seal • Hamilton Kent – Kent Seal
Anchor Bolts Zinc Plated Steel SSTL (Type 304)• Grade 5 (Bolts) • ASTM F593, F594• Grade 2 (Nuts)
Stem Carbon Steel SSTL (Type 303)• C1018/1020 • ASTM A582
Stem Cover Aluminum Aluminum
Lift Housing Cast Iron Cast Iron• A48, Class 30 • A48, Class 30
Lift Nut Cast Zinc Aluminum Cast Zinc Aluminum• ZA12 • ZA12
Handwheel Cast Aluminum Cast Aluminum• AA No. 356.1 • AA No. 356.1
Paint Amerlok 400 Amerlok 400(Wedges, Slide, Seat andCrossbar)
Gate Tag No.
Gate Type
Dimensions (diameter)
Head (Seating/Unseating)(20’ seating Head Max/10’ unseating Head Max)
Mounting Surface (FC, CC, MF, MT)
Invert Elevation
Operating Floor Elevation
Lift Type
Series 20-10CFlow Control Slide GatesRevised October 2007 11
5. Slide Gate Schedule
6. Installation Handling and installation of all components shall be inaccordance with the manufacturer’s shop drawingsand installation instructions. If the gate is to bemounted to a concrete wall, extra care should be takento ensure that the wall is flat and smooth with amaximum variation of 3mm across the mountingsurface of the gate.
7. CommissioningAfter installation of the gate, the seating surfaces shallbe cleaned thoroughly of all foreign materials, thestem lubricated (if required) and the final adjustmentsmade. The gate shall then be cycled from the fullyclosed to the fully open position to ensure smoothoperation of the gate. If an electric actuator isinstalled, the limit switches shall be set in accordancewith the manufacturer’s installation instructions.
Series 20-10CFlow Control Slide GatesRevised October 2007 12
Armtec 20-10C Quick Inquiry Sheet
Project Name:
Company Name:
Address:
Phone:
Fax:
Email:
Unit of measure: mm inch
Step 1:
Tag Number :
Quantity of Gates :
Material: Standard (Galvanized Frame, Zinc Plated Fasteners, Cast Iron Seating Faces)
Deluxe (304SS Frame, 304SS Fasteners, Bronze Seating Faces)
Step 2:
Gate Size :
Diameter:
Diameter
Series 20-10CFlow Control Slide GatesRevised October 2007 13
Step 3 – Operating Requirements
Seating head:
Unseating head:
Invert Elevation:
Operating Floor Elevation:
Step 4 – Mounting Requirements
Concrete Wall (FC) Metal Flange (MF) Curved Back (CC)
Cast Iron Thimble (MT) Thimble Depth Thimble Type (‘F’ or ‘E’)
Step 5 – Lift Requirements
Manual “LW” Manual Bearing: Manual Geared:
Electric: Volts Phase Cycle Special Requirements
Cylinder : Water: Air: Operating Pressure:
Step 6 – Lift Mounting
Self Contained Frame (SCF)
T-Wrench with Lift Operating Extension (LOE)
Pipe Frame Extension (PFE)
Pedestal to Slab (FP)
Pedestal to Wall Bracket (FPW)
DIST
ANCE
FRO
MDI
STAN
CE F
ROM
INVE
RT T
OIN
VERT
TO
OPE
RATI
NG
FLO
OR
OPE
RATI
NG
FLO
OR
INVERTINVERTELEVATIONELEVATION
SEATING SEATING HEADHEAD
UNSEATINGUNSEATINGHEADHEAD
cLGate
Diameter