BS standard swing check valves with counter weight in cast iron PN 16 and 25 are manufactured in cast iron with ductile iron disc and sealing face in bronze. They are installed for water, steam, gas, oil.
Design & manufacture: BS 5153; MSS SP 71, AWWA C508
Face to face: DIN 3202 F6, ANSI B016.10
Flanged ends: ISO7005-2 PN10/PN16/PN25
