16 inch 600LB Three Piece Side Entry Trunnion Type Ball Valve
Trunnion Mounted Ball valves
Our trunnion mounted side entry high performance ball valves, have
a robust design and are engineered to meet International standards
like API 6A, API 6D, ASME B16.34, ISO 17292 and others on request.
The range contains both soft, metal or composite seats that can be
configured with single or double piston effect to provide an
effective double block and bleed (DB&B) in both closed and, on
request, in open position.
Main Material
| Body material | Trim material | Seal material | Gasket/Packing |
| WCB/LCB/CF8/CF8M/CF3/CF3M,ETC. | SS410, SS420, SS304, SS316,ETC | PTFE, RPTFE, PEEK, PPL, ETC. | GRAPHITE. PTFE, PPL. ETC.
|
| Ball Valve Type | Design and Manufacture | Face to Face/End to End | Flange Dimensions | Pressure Temperature Rating | Inspection and Test |
| Split Flange ball valve | BS5351 | ANSI B16.10 | ANSI B16.5 | ANSI B16.34 | API6D |
| Fixed flange ball valve | API6D/API608 | API6D | ANSI B16.47 | ANSI B16.34 | API598 |
Design Feature
1: Full bore or reduced bore
2: Two-piece or Three-piece body structure
3: Double Block & Bleed, Double isolation and
bleed(DIB-1&DIB-2)
4: Fire safe design(API 607)
5: Blowout-proof system
6: Anti-static design
7: Self cavity relief
8: Fugitive emission testing(optional)
Design Data
Design standard: API 6D,DIN3357-1 , EN12516-1
Face to Face standard: API6D, ASME B16.10, DIN3202
Connecting Standard: ASME B 16.5, ASME B16.47, DIN 2543/4,ASME B
16.25
Test & Inspect Standard: API 6D ,API 598
Working Temperature: -196℃~610℃
Connection type: RF,RTJ,FF,BW.BSPT,NPT
Sour environment:NACE MR0175
Fire safe design
Ball valves ensures 100% pass of the fire safe test. As Ball valve
applies two sealed design via O-ring seals and metal graphite
spiral wound gasket. When the valve is on fire, non-metallic
materials such as PTFE seat seals, gaskets ,O-ring seals,rubber etc
will be damaged, meanwhile the outer layer of metal graphite spiral
wound gasket provides a secondary seal. When the soft seat is
burned, metal seat will automatically form a metal seal with ball
under the urging of the spring which will effectively control the
internal leakage and external leakage. Valve design fully accords
with API 607, API 6FA, BS 6755, JB / T 6899 and other standards,
DOUBLE BLOCK & BLEED (DBB)
When the ball is in the closed position, each seat seals off the
process medium independently at the same time between the up/down
stream and body cavity, it allows bleeding the trapped cavity
pressure (DBB) through drain and vent valve. The double block and
bleed function make it possible to flush the valve under pressure
and verify that the seat are sealing properly.
DOUBLE ISOLATION & BLEED (DIB)
Double piston effect seat, medium pressure, both upstream and
downstream as well as in the body cavity, creates a resultant
thrust that pushes the seat ring against the ball, valve with
double piston effect seat rings require a cavity pressure relief to
reduce the build-up of over pressure in the body cavity.
Sealing Options
Soft seat: Metal to Metal O-Ring seal
Simple structure reliable sealing Applicable to particulate
Reliable sealing low torque meet customers' high
wide application low cost. media conditions sealing reliability and
low torque requirements
The ball is fixed by trunnion and stem for size 4” &smaller.
Trunnion plate support for size 6” & larger
