ANSI Bellow Valve

API 602 Bellow Gate Valve

Size range : 1/2"-2"
Class: 150LB-1500LB
Temperature : ≤425 ℃
Materials :A105,LF2,F5,F11,F22,F304,F316,F316L,F321,F347

Features and benefits

● A compact but extremely sturdy design for high pressure-temperature service.
● Solid CoCr alloy wedge (optional) ensures low friction and long service life.
● For Class 1500 valves and for steam service, seats are seal-weldedto the body.
● Packing rings are precompressed to 4000 psi to provide a high integrity seal.
● For welded bonnet valves, the bonnet is threaded in and torqued to an engineered torque value and the body bonnet joint is strength-welded, offering double protection against leakage. (Body/bonnet threads and strength-weld).
● Fully guided wedge reduces wear on seating surfaces.
● Repairable 2-piece stem drive.
● Parallel slide gate valves also available.
● Optional design available with double packing, leak-off connection, live-loading and a packing blowout for easy removal of old packing. 

Technical specification: 

●Design: API 602,BS5352,ANSI B16.34

●Connection ends: 

   a.Scoket welded ends conform to ANSI B16.11;GB/T1751

   b.Screw ends conform to ANSI B1.20.1;GB/T7306

   c.Butt-welded ends conform to ANSI B16.25;GB/T12224

   d.Flanged ends conform to ANSI B16.5;GB/T79

●Test & inspection: API 598; GB/T13927

●Structure feature:

   Bolted bonnet, outside screw and yoke.

   Welded bonnet,outside screw and yoke.

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.


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