Specification :

1) Design: API 6D
2) Face to face: ASME B 16.10
3) Flanged ends: ASME B 16.5
4) Test and inspection: API 598
5) Material:
a) Body: TA2, Grade C3
b) Bonnet: TA2, Grade C3
c) Seat: TA2, Grade C3
6) Pressure: 150 ~ 600lbs
7) Applicable temperature: d425°C
8) Working mediums: strong oxidative and corrosive medium

optional:
Drain Plug
Counter balanced/loaded lever and weight option
Emergency assisted-closing type (power check)
Other flanges and end connections available i.e. butt weld, socket weld and screwed
Total flexibility of material selection to customer specifications
Larger Valves 20" (DN500) up to 80" (DN2000) on application
Blackhall-Brooksbank also manufacture piston check valves

we are able to supply other material such as carbon steel, alloy steel,P11, WP22, extra-low-carbon stainless steel, commercially pure titanium, titanium alloy, Hastelloy alloy, Monel alloy, No.20 alloy, and pressure rating from 150# to 9000#, size range from 1/4" to 72" for DIN, ANSI, ASME, JIS, ISO, BS, API etc standards.

for more information visit our website http://www.zmcsteel.com