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High Pressure Swing Check Valve,API 6D Design,API 598 Test, Pressure Seal Cover,Welded-in or Threaded Seat Ring,Butt-welding End,Pressure:1500Lb, Body/Cover: Cast Alloy Steel A217 WC6,Trim 5,Size:10"Manufacturing to NACE-01-75 on request.Swing Check Valves can be supplied with the following accessories:- outside weight and lever- slam retarders- assisting springs- position switches/indicators- pneumatic safety controlApplicable Standards:-Design and Manufacture Standard: API 6D or BS 1868 -Inspection and Test Standard: API 598-Pressure-Temperature Rating Standard: ASME B16.34-Face to Face Dimension Standard: ANSI/ASME B16.10-Butt-welding Ends Dimension Standard: ANSI/ASME B16.25Design Description:-PSC, pressure seal cover-Swing Type, Anti-rotation Disc-Renewable Seat Rings-Non-penetrate Disc Shaft-Horizontal or Vertical Service-Butt-welding EndsDesign Features:BODY- ­The cylindrically shaped valve body prevents distortion or undue stress under extreme working conditions. Padding is also provided to achieve a sound cast structure in the critical areas. The wall thickness is greater than,or in accordance with API,ANSI and ASME requirements. The area contacting the pressure seal gasket has a stainless steel 18/8 inlay to eliminate corrosion or wire drawing. The close tolerances of the inside diameter of this area are attained by accurate machining and honing finish.COVER­- The cover material is a steel forging identical to the body to insure high dependability. The cover construction has a perfect body-cover tightness and ease of dismantling and reassembly are ensured.DISC-The disc has a sufficient seating surface area which is ground and lapped to a mirror finish. It is of one-piece construction and is heat treated to deliver the required mechanical properties and hardness.SEAT RING- The Stellite 6 surface of the seat ring is integrally applied to the body by means of welding in all valve sizes. Perfect mating with the DISC surfaces attained by a lapping finish applied to the seating.HINGE PIN- The hinge pin is inserted into the valve body to achieve pressure seal construction.ARM- The arm is of a steel material identical to the body. Larger sized valves are provided with a hinge bushing to reduce friction and to prevent galling.Application:High-Pressure Industrial Gas, Water, Steam, Oilfield, Refinery, Chemical, Petrochemical, Power StationIndustries.Other type of High Pressure Swing Check Valve could be availableWe also accepted all kinds of OEM jobs!