Bolted cover piston check valves

Category: Gate, globe & check valves
Product line: Pressure seal (forged and cast steel)

Size range(s)
NPS 2 1/2 - 14
(DN 65 - 350)
Pressure rating
ASME Classes
150 - 1500
Standard connections
Socket weld, Butt weld

Features and benefits

● Stronger, leakproof bolted body bonnet joint.
● Low pressure drop compared to vertical globe valves.
● Excellent resistance to thermal changes.
● Forged bonnet ring is centered by the body bore and provides perfect sealing surface for the pressure seal gasket.
● Quick and easy repair in the line.
● Integral seat - CoCr alloy providing maximum resistance to wear, erosion and distortion due to high temperature changes and piping loads.
● Equalizer piping for safe operation. 

Product information

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Industry brochures

Global leader in valves for nuclear power ( 2881 KB) Document code: NCP-2003

Product catalogs

CAT-PS-10-11 – Pressure seal and bolted bonnet ( 3733 KB) Document code: CAT-PS-10-11



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