fully Welded forged trunnionBall Valve

Applicable standards:
Design: API 6D, ANSI B16.34
Face To Face: API 6D, ASME B16.10
Flange end: ANSI B16.5, ASME B16.47
Fire safe: API 607
Testing and inspection: API598, API6D

JSC Trunnon ball valve
Size: 2"-48"
Pressure: 150LB-1500Llb
Body material: WCB, CF8M, CF8, GR4A, LCB, WC6, WC9, LCC, CF3, CF3M, LF2, LF3
Operate: Manual, gear box, electric, neumatic, hydraulic atuators
END: RF, BW,

Design description
Double block and bleed design(DBB)
Double stem sealing. The ball can maintain pressure sealing of pipeline when it is closed or fully opened.
Shorter upper sleeve reduces bearing load and operation torque
Limit device ensures the accurate opening and closing position of the valve
The ball and stem are separated so as to reduce stem load. The stem adopts anti-blow-out design.
The sealing surface is inserted into te metal seat by polymer or plastic
The metal backed self-lubricating PTFE bearing and PTFE thrust washers
Reduce the opening torque and prolong the service life of the valve. Stem leakage can be prevented through the emergency grease fitting.

Nickel and phosphor treatment to the parts can enhance the anticorrosive performance.
The fireproof design of metal wound gasket of stainless steel and graphite can prevent external leakage.
Anti-static design
Trunnion Type
Full bore/Reduced bore
Bolted cover/welded cover
Turn 90 degree opening or close
Detachable seat PTFE/RPTFE
END: RF, BW, SW
Applicable temperature: -196-540
Supply Air: 1Bar to 8Bar