API 602 Check Valve
Place of Origin: China Certification: ISO9001-CE
BTL valves are available in Three bonnet designs. The first design is the Bolted Bonnet, with male–female joint, spiral wound gasket, made in F304L/graphite. Ring joint Gasket is also available on request.
The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penetration strength welded joint is available.
The third design is the pressure seal bonnet, with a threaded and pressure seal bonnet joint. The forged check valve has three different designs, they are piston check valve, ball check valve and swing check valve.
The length of the structure: length of structure of socket welding / thread end of forged steel gate valve is manufactured by factory standard=ASME B16.10/ GB/T 12221
The length of structure of flange/ butt welding end of forged steel gate valve is manufactured by ASME B16.10/ GB/T 12221
Flange connecting end: ASME B16.5/GB/T 9113/HG/T 20592/ EN 1092.1
Butt welding connecting end: ASME B16.25/ GB/T 12224
Wall thickness: API 602/ASME B16.34/ GB/T 12224
Inspection and test: API 602/GB/T 13927
Pressure and temperature rating: ASME B16.34/ EN 12516 /GB/T 12224
Product scope: NPS ½″~NPS 2″ (DN15~DN50) CL150~CL2500 (PN16~PN420)
Main body material: A105,LF2,F11,F22,F51,F91,F304,F316,F304L,F316L etc.
