16 inch 600LB Three Piece Side Entry Trunnion Type Ball Valve

Trunnion Mounted Ball valves

Main Material

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

Beijing Silk Road Enterprise Management Services Co.,LTD. is a professional manufacturer of Trunnion Mounted Ball Valve, Pneumatic Actuated Ball Valve, Flange End Ball Valve and Soft Seated Ball Valve.