JUAL TRUNNION BALL VALVE GLT
JUAL TRUNNION BALL VALVE GLT
Jual Trunnion Ball Valve GLT , Distributor Trunnion Ball Valve GLT
|General Design||: API 6D|
|Face to Face||: ASME/ANSI B 16.10|
| Flange End|| : ASME/ ANSI B 16.5|
: ASME/ ANSI B 16.47
|Butt Weld End||: ASME/ANSI B 16.25|
|Fire Safe Design||: API 607 / API 6FA|
|Pressure Rating||b||: ASME/ ANSI B 16.34|
|Inspection & Test||b||: API 6D & API 598|
Daftar Harga Trunnion Ball Valve GLT, Distributor GLT Valve Jakarta
BLOW-OUT PROOF STEM
Stem seal integrity is achieved by the use of double o-rings and graphite gasket. Blow-out proof stem structure is provided standard with the stem independent of the ball which allow a reduction of the operating torque.
An anti-static device is built into the valve stem to allow the static charges to be led to the piping, thus eliminating electrostatic charging of the ball.
EMERGENCY SEAL RESTORATION
GLT Trunnion ball valves are all designed and made with devices for grease or sealant injection, both on the stem and the seat. The sealant injection system allows the lubrication of the seat and stem area to restore the sealing integrity in case of damages to the sealing surfaces until the valve is properly serviced during maintenance.
SPRING LOADED SEATS
Independent spring loaded seats are always in contact with the ball to provide an effective tight seal even at low differential pressures. As line pressure increases, the seat area creates a piston effect which forces the seat against the ball, creating an even tighter seal.
FIRE-SAFE DESIGN WITH SECONDARY METAL SEAT
GLT Ball Valves are constructed according to fire-safe design and have been fire tested to API 607 and API 6FA standards. Resilient sealing materials has failure possibility when subjected to high temperatures. As the resilient material are burned or damaged, the edge of the metal seat retainer preloaded by the seat spring comes into contact with the ball to form a metal to metal sealing.
BODY VENT & DRAIN
The body cavity may be vented and drain in both open and close state.
TRUNNION MOUNTED BALL
Trunnion mounted stem absorb the thrust from line pressure thus preventing additional friction between ball and seats, thus helping to keep the operational torque lower.
CAVITY PRESSURE SELF-RELIEF
In the event of an unusually high increase of temperature, liquified gas or highly volated liquid trapped within the body cavity may cause an abnormal rise in the cavity pressure to exceeds the line pressure. The medium itself would propel the seat and selfrelieves the pressure from the cavity into the valve bore.
DOUBLE BLOCK AND BLEED FUNCTION
Ball seals shut off the flow line independently on the upstream and downstream side of the ball. The valve bore and the body cavity are isolated from each other when the valve is fully opened or closed so that residue and pressure within the body cavity may be disposed through the drain plug/valve. This design prevents fluid contamination or pressure build up within the valve interior.
Jual Trunnion Ball Valve GLT, Jual Ball Valve Merk GLT Jakarta
Distributor Trunnion Ball Valve
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