OS&Y,Rising stem,Plug Disc

Bolted Bonnet,Threaded or welded seat ring

ASTM A216 WCB,A217 WC6,A351 CF8,A351 CF8M,

A351 CF3,A351 CF3M,A351 CN7M

 

Standards compliance

 

Design and Manufacture: ANSI B16.34,BS1873

Face tu face(end tu end): ANSI B16.10

Flanged connection: to ANSI B16.5

Butt welded end: ANSI B16.25

Test and inspection: API598

 

A.Anti-friction ball thrust bearing: Reduces friction between mating parts to ensure smooth operation

B.Grub screw: Secures yoke nut in the bonnet

C.Grease nipple: Supplies lubricant to the mating parts