forged steel A105, WCB; stainless steel 304,304l,306,306l check valves
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Forged Steel Check Valve
TTF forged steel check valve has three types of bonnet. One is bolted bonnet, which the body is connected with bonnet by bolts and sealed by spiral gasket (316SS filled flexible graphite) , and available to follow metal sealing ring for special requirements by the client; one is welded bonnet, which the body is fully welded; another is pressure-in bonnet, which the body is screwed into the bonnet and sealed by inner pressure-in ring.
There are three different design of check valve: Lifting Check Valve, Ball Type Check Valve and Swing Check Valve.
Design Structure and Features:
A. TTF check valves design and manufacturing in conformity with MSSP-118 and ASME B16.34.
B. Inspection and Test as per API 598.
C. Markings as per MSS-SP-25
Structure and Features:
Full bore or reduced bore Lifting check valve
Ball type check valve Swing check valve
Inside spring as required
Bolted, spiral gasket sealing bonnet, screwed,
fully welded and pressure-in bonnet
SW in conformity with ASME B16.11
Screwed (NPT) according to ANSI/ASME B1.20.1
Disc changeable for choke type, needle type or ball type