Valves
Butterfly Type(Lug, Wafer, Dbl Flange)
Check Valve Type
Gate Type
Lever Linkage/Cam Act. Type
Relief Valve Type
Other Types
Horizontal Swing Check Valve
SIZES
12” thru 24”… ANSI B16.5
22” and 26” thru 60”… MSS-SP-44
Face to face and end to end dimensions conform to API Spec. 6D, Table 4.6 and ANSI B16.10 for sizes 12” thru 36”; over 36” size–consult factory
Full bore per API Spec. 6D, Table 4.5
STANDARD MATERIALS
| Body Unit | Carbon Steel ASTM A-105, A-516, A-36, A-441 |
| Bonnet Cover | Forged Steel ASTM A-105, Gr. I & II |
| Clapper and Arm | Carbon Steel ASTM A-516, A-36 |
| Seat Ring | Carbon Steel ASTM A-36, A-441 |
| External Hardware | Alloy Steel |
| Internal Hardware | Stainless Steel |
| Clapper Stem | Stainless Steel |
| All Seal Rings | Buna ‘N’ Viton |
| Stem Bearings | Steel / Teflon |
| Thrust Washers | Stainless Steel |
| Drain and vent | Forged Steel ASTM A-105 Gr. I & II |
| Pig Guide | Carbon Steel ASTM A-36. A-516 |
Note: Other materials available on request
APPLICATIONS Pipeline transmissions & distribution, Flow line, Pump Stations, Metering Runs, Underground Storage, Water flood and General pipeline services.
DESIGN FEATURES · Full bore through conduit · Fabricated from wrought & forged steel components for maximum flow efficiency · Lightweight and low profile affords easy installation · Bolted bonnet cover provides easy access for maintenance · Field replaceable seat ring and clapper · Precision machined seating for metal–to–metal, metal–to–elastomer, or metal to Teflon · Lightweight clapper to minimize pressure drop and ensure scraper passage · Teflon impregnated stem bearings eliminate lubrication requirement · Adequate lifting lugs and feet afford easy installation
OPTIONAL FEATURES · Clapper position indicator · Slam retarder, spring loaded dashspot · Manual override for reverse flow, line testing and/or throttling · Stop check · Integral Bypass
