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!