MEDIUM DUTY CAST IRON SLIDE GATES SERIES 20-10C Revised October 2007 Armtec reserves the right to alter designs.
General The Armtec Sluice Gate is a quality and highly economical gate for a variety of low head applications including: Irrigation turnout structures Water and wastewater treatment plants Flood control and retention ponds Storm and sanitary sewers (Deluxe Model) Pump Stations Design The 20-10C Sluice Gate is available in standard sizes from 203 mm to 1067 mm diameter and designed to 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, slide and cross-bar, which is attached to a galvanized steel frame and yoke. The yoke supports the lift system forming a self-contained unit. Its flat back configuration makes it suitable for mounting to pipes, thimbles and concrete headwalls and manholes. Sluice Gate Standard Model Materials Frame Galvanized Steel Stem Carbon Steel Gate Seat and Slide Cast Iron with Polyamine Epoxy Coating Seating Faces Machined Cast Iron Fasteners Zinc Plated Steel Note: 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-priming Epoxy Coating Seating Faces Machined Bronze Fasteners Stainless Steel Note: Suitable for most sanitary sewer applications. Revised October 2007 1
Gate Seats/Seals The slide moves vertically along machined cast iron faces (Standard Model) or machined bronze faces (Deluxe Model) which are attached to the frame and slide. Sealing is achieved by two adjustable side wedges that come in contact with faces on the slide cross bar just as the gate approaches the closed position. The sealing faces do not protrude into the waterway opening, allowing for full sluice discharge. Typical Slide/Seat Cross Section 4. 5. 1. 3. 2. # Part Description 1 Slide 2 Cross Bar 3 Side Wedge 4 Yoke Side Supports Frame 5 Gate Seat Revised October 2007 2
Mountings The 20-10C Gate can be installed onto a variety of mounting 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) Flat Concrete Wall Mounting (FC) Side Cross Section Curved Concrete Wall Mounting (CC) Side Section Metal Flange Mounting (MF) Side Cross Section Revised October 2007 Metal Thimble Mounting (MT) Side Cross Section 3
Standard Configurations and Sizes The Engineering Table below summarizes the available gate diameters and dimensional data for each size of gate. These gates are stocked in standard frame heights as listed, but custom fabricated configuration options are available. Various lift extensions are available, as shown on Page 5. Contact an Armtec Sales Representative for more information. Anchor Bolt C H Frame Height D E ARMTEC B Gate Opening Diameter Anchor bolt F A A+204 mm Installation Clearance 102 Dimension Data Stock Anchor Bolt Gate Stem Lift Frame Bolt Circle Diameter A B C D E F Diameter Type Height Diameter Diameter mm mm mm mm mm mm mm mm mm mm mm mm 203 324 146 289 124 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 Revised October 2007 4
Lift Extensions Detailed Configuration Options and Material Specifications Manual type lift with handwheel Pedestal T-wrench handle Floor box with cover Stem Stem clamp with bushing Lift operator extension (LOE) LOE Clamp Lift Stem ARMTEC ARMTEC Pedestal to Slab (FP) T-Wrench with Lift Operating Extension (TWH) Manual type lift with hand wheel Manual type lift with hand wheel Wall bracket Stem guide Stem Pipe frame extension Pipe frame clamp Stem ARMTEC ARMTEC Pedestal to Wall Bracket (FPW) Pipe Frame Extension (PFE) Revised October 2007 5
Stem Covers Stem covers should always be used for outside installations to keep the stem threading clean of fine grit which can increase lift nut wear and the amount of torque to operate gate. The stem cover is made of aluminum with lexan plastic viewing windows. Markings are provided in metric and imperial units to mark the location of the gate position. Stem Guides Stem guides are provided as required to support the stem from buckling. The stem guides are designed as per AWWA Standards. The stem guide is fabricated from 304 stainless steel with an ultra high molecular weight polyethylene (UHMWPE) bushing. Aluminum stem cover with LEXAN window ruler with metric and imperial units. Fabricated stainless steel stem guide clamp with UHMWPE bushing. Electric Lift Option Manual gates can be provided with Armtec s electric Drill Pak System. The Drill Pak System comes complete with Industrial Duty electric drill (110V, Single Phase, 60 Hz), mounting tripod, clutch and 2 square adapter socket. The Drill Pak is designed to be operated in the horizontal position. gates can also be provided with an electric actuator in place of manual lift systems. Contact an Armtec Sales Representative for more information. Revised October 2007 6
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 Code Material S D Cast iron gate, Cast iron seating faces, galvanized frame, zinc-plated fasteners, carbon steel stem Cast iron gate, Bronze seating faces, 304 stainless steel frame and fasteners, 303 stainless steel stem 4. Mounting Type Code Mounting Surface On 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)) 5. Lift Configuration Code Lift Type SCF 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 Size Gate Mounting Lift (mm) Material Type Configuration 20-10C Revised October 2007 7
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 20-10C 305-S-FC-SCF 20-10C 914-D-MF-PFE 305 ARMTEC ARMTEC 914 Revised October 2007 8
Gate Specifications 1. General Specifications 1.1 Scope This specification covers medium duty cast iron sluice gates and operators in which the gate is designed to withstand seating or unseating heads in water supply applications. 1.2 Governing Standards No AWWA specifications currently cover the use of medium duty cast iron sluice gates. 1.3 General The gate assembly shall consist of the gate frame and slide, stem, lift mechanism and accessories. The gate assembly shall be designed, fabricated and shop assembled in accordance with the manufacturer s shop drawings and specifications. 1.4 Acceptance of Approved Alternate Products To be considered by the Engineer as an approved alternate product, the alternate gate manufacturer shall submit a list of 50 fabricated slide gate projects (minimum) indicating proven operation in similar applications. 1.5 Quality Assurance Prior to shipment, the gate assembly shall be shop inspected and adjusted for proper operation. 1.6 Submittals The manufacturer s shop drawings shall indicate the gate assembly s opening size, type of material, schedule of parts and principal dimensions. Gate assembly installation procedures shall also be provided to supplement the shop drawings. 2. Performance Seating and unseating heads shall be measured from the water surface to the centre of the gate slide. The gate assembly shall be designed to the design heads shown below: Seating Head: 6.1m (20 ) Unseating Head: 3.05m (10 ) 3. Gate Assembly Product Details The gate assembly shall consist of the gate seat, frame, slide, crossbar, wedges, stem, lift mechanism and accessories. The gate assembly shall be factory assembled prior to shipment. The gate assembly shall be available in standard and deluxe material combinations as detailed in Section 4 (Materials). 3.1 Gate Seat and Frame The cast iron gate seat shall have a flat back configuration suitable for attachment to a concrete wall or a round pipe flange. The self-contained gate frame shall consist of two vertical 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 integral guides to engage the side angles and permit travel of the slide. A horizontal cast iron crossbar, bolted to the gate slide, shall incorporate side wedges that engage wedges mounted to the side angles. 3.3 Gate Seating Faces The gate shall be furnished with machined metal seating faces available in standard and deluxe material combinations detailed in Section 4 (Materials). In the closed position, the clearance between the seat and the slide shall not exceed 0.004 (0.10 mm). 3.4 Gate Assembly Fasteners Gate Assembly Fasteners shall be in accordance with Section 4 (Materials). 3.5 Mounting Gaskets and Anchors The gate shall be mechanically fastened to the mounting surface with anchor bolts or with fasteners. Gasket material shall be buytl rubber sealant in accordance with Section 4 (Materials). 3.6 Stem The gate slide shall be raised by a rising stem lift system. The stem shall be available in the material combinations 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. Revised October 2007 9
The minimum stem diameters are detailed below: Gate Size Range Stem (mm) Diameter (mm) 203-406 22 457-610 28 762-1042 38 3.7 Stem Covers The stem cover shall be made of aluminum with LEXAN window. Markings shall be provided in metric and imperial units to mark the location of the gate position. 4.0 Materials 3.8 Lifting System The lift system shall consist of a handwheel, or hard crank lift nut, stop nut and housing designed such that the gate can be operated with a maximum of 110N pull. The lift nut shall be cast such that a 51 mm square nut protrudes from the top so that the hand wheel, lift operating extension or T-wrench can be attached. The stop nut shall be furnished to limit the downward travel of the stem when the closed position is reached. The lift system shall be supplied as per the Slide Gate Schedule (Section 5). Component Standard Model 20-10C Deluxe Model 20-10C Seat 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 and Crossbar) 10
5. Slide Gate Schedule 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 6. Installation Handling and installation of all components shall be in accordance with the manufacturer s shop drawings and installation instructions. If the gate is to be mounted to a concrete wall, extra care should be taken to ensure that the wall is flat and smooth with a maximum variation of 3mm across the mounting surface of the gate. 7. Commissioning After installation of the gate, the seating surfaces shall be cleaned thoroughly of all foreign materials, the stem lubricated (if required) and the final adjustments made. The gate shall then be cycled from the fully closed to the fully open position to ensure smooth operation of the gate. If an electric actuator is installed, the limit switches shall be set in accordance with the manufacturer s installation instructions. Revised October 2007 11
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: Revised October 2007 12
Step 3 Operating Requirements Seating head: Unseating head: Invert Elevation: Operating Floor Elevation: DISTANCE FROM INVERT TO OPERATING FLOOR SEATING HEAD UNSEATING HEAD Gate cl INVERT 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 ) Diameter 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) Revised October 2007 13