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
Test & Inspect Standard: API 6D ,API 598
Working Temperature: -196℃~610℃
Connection type: RF,RTJ,FF,BW.BSPT,NPT
Sour environment:NACE MR0175
|Pressure-Temperature Rating||ASME B16.34|
|Face to Face||API6D|
|Flange Ends||ASME B16.5, ASME B16. 47|
|Buttwelding ends||ASME B16.25|
|Inspection & Test||API598/ API6D|
|High Pressure Seal Test||2.93||7.55||15||22.4||37.5|
|Low Pressure Seal Test||2.07||5.52||11.03||16.54||27.5|
Coosai Top entry ball valves will make the online maintenance easy
and no need to dismantle the body from the pipes.
Coosai top entry ball valve has special patent in design.
1: Full bore or reduced bore
2: Integral body structure
3: Double Block & Bleed, Double isolation and
4: Fire safe design(API 607)
5: Blowout-proof system
6: Anti-static design
7: Self cavity relief
8: Fugitive emission testing(optional)
The ball is fixed by trunnion and stem for size 4” &smaller.
Trunnion plate support for size 6” & larger
Blow-out proof stem:
The stem is made separately from the ball with integral T-type
round shoulder, retained by bland .(other designs are Available on
Spring plus graphite type anti-static device are applied between
the ball ,stem, gland Flange and body to keep the electrical
Continuity between all the metallic components.
And ensure the resistance lower than the most severe service
Soft seat: Metal to Metal O-Ring seal
Simple structure reliable sealing Applicable to particulate
Reliable sealing low torque meet customers' high wide application
Media conditions sealing reliability and low torque requirements.
Fire safe design
Coosai ball valves ensures 100% pass of the fire safe test. As
Coosai 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 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.