Swing Check Valve

We are offering check valve.
Specifications
check valve
material:
1) valve body and bonnet: ductile iron astm-a-536,ggg500-7
2) dis: grey ironbronze,grey iron
features:
1) the check valves supplied are mainly used for preventing the water
and steam medium from flowing backward
2) material:
a) valve body and bonnet: ductile iron astm-a-536, ggg500-7
b) disc: grey iron bronze, grey iron or grey iron rubber
3) size: 50 - 400mm 2" - 16"
4) pressure grade
a) 250 psi
b) pn10
c) pn16
5) coating
a) fusion-bonded epoxy 200-250 microns inside and outside .
b) coating as per customers' requirement