Swing Check Valve, MS SP-71.
Design:  MSS SP-71 / AWWA C508
Class: 125Lbs, 200WOG
Face to face: ASME B 16.10
Flange: ASME B 16.1  
Testing: MS SP-71
Size: 2"-24" 
Cover: Cast iron, Ductile Iron;
Body: Cast Iron, Ductile Iron;
Body Seat Ring: Brass, Bronze, Stainless steel;
Disc: Cast iron, Ductile Iron;
Disc Sealing Ring: Brass, Bronze, Stainless steel;
Shaft: Brass, Stainless steel AIS410/304/316
Stem nut: Brass;
Body Gasket: Graphite, NBR, EPDM;
Packing O Ring: NBR, EPDM .

Item: CAST IRON SWING CHECK VALVE, ANSI-125/150
Standard: ANSI
Body: Cast iron or Ductile iron
Bonnet: Cast iron or Ductile iron
Seat ring: Cast iron or Ductile iron
Arm: Cast iron or Ductile iron
Disc: Cast iron or Ductile iron
Size: DN40~DN300
Nominal pressure: 125PSI, 150PSI
Aplication:
1. Face to face is according to ANSI B16.10
2. Flange drilled is according to ANSI B16.1

Any questions or more details, please feel free to contact me!

Yuanda manufactures to standards including GB/JB(china), ANSI, API, AWWA, DIN, BS, JIS, EAC, NF and so on, and uses HT200, HT250, QT400, QT450, WCA, WCB, WCC, CF3, CF8, CF3M, CF8M, 1Cr5Mo, LCB, among others, to produce a great variety of valves including gate valves, globe valves, ball valves, butterfly valves, check valves, diaphragm valves, pressure-relief valves, plug valves, and traps, which are available in 12 main categories, 200 series and 4000 specs, totaling 120,000 tons a year. These products are widely used in all civil sectors covering petroleum, petrochemical, chemical, power generation, metallurgy, water system, pharmaceuticals, urban construction, and water supply and drainage.