Trunnion mounted ball vaIve


Trunnion mounted ball valve is a new generation of high-performance ball valve, suitable for long distance pipelines and general industrial pipelines. Designation takes full consideration to its strength, safety, resistant to harsh environments, so it can apply to a variety of corrosive and non-corrosive media.It is used to cut off or connect the media in various pipelines of Class 150~Class 2500.

The valves are made of different materials,which are suitable for various media such as water,oil,liquefied gas,natural gas,etc. The double piston effect design (available on request), maintains the sealing capacity of the valve even in the case of failure of the up stream seats, Bodg cavity over pressure in this case can be released through a relief valve to atmosphere. The tightness is assured by the piston effect acting on the seat, pressing it against the ball, once the valve is pressurized.

Dimension rangeNPS 2”~48"
Pressure rangeClass 150-2500
Temperature range60℃ to +180℃


Main Feature:

● Side entry

● Full bore / Reduce bore

● Double block and bleed

● Blowout- proof stem

● Anti-static design

● Fire safe design

● Sealant injection at seat and stem

● Zero leakage

Design Standard:

● Design: APl 6D / API608 / ISO 17292

● Face to face: API6D / ASME16.10

● Flange end: ASME B16.5 / ASME B16.47 / EN1092-1 / GOST 12815 / MSS-SP44

● Butt-weiding end : ASME B16.25

● Test: API 598 / API 6D

● Fire safe : API 607 / API 6FA

Material Option:

● Carbon steel(WCB,LCB,WC6,WC9,C5,A105,LF2)

● Stainless steel(CF8,CF8M,CF3,CF3M,F304,F316,F304L.F316L)

● Duplex stainless steel(4A,5A,6A,F51,F53)

● Hastelloy alloy

● Inconel alloy

● Monel alloy

● Aluminium bronze alloy(C95400,C95500)