Active Member
|
[China]
Address: Room 2933, 1st floor, Building 5, No.556, Liuyuan Road, Putuo District, Shanghai
Contact name:Wesley Wei
Kelite Valve(Shanghai) Co., Ltd |
|
|
API 6D top entry forging trunnion ball valve of 2"-56" CL150-2500 CS and SS ball valve
Forging split body, full bore/reduced bore, trunnion mounted, double block and bleed, single or double piston effect, anti-blow out stem, anti-static device, fire-safe certified to API-607/6FA/ISO 10497, spring loaded Seats, sealant injection, NACE MR-01-75, NYLON, DEVLON&PEEK seat inserts, designed and tested according to ASME B16.34, BS5351 and API-6D,API-6DSS, API 6A.
KELITE Top Entry ball valves are used in pipelines, pumping and compression stations, offshore, onshore, subsea and cryogenic as well as abrasive and high temp applications.
The extensive size range and pressure class are available in a variety of materials including Carbon, Alloy & Stainless steel suitable for general to severe service conditions.
The KELITE trunnion mounted ball valves are available with Double Block & Bleed independent of the seat type.
Single piston effect (SPE) is the standard feature for the seat
rings of the KELITE trunnion mounted ball valves.
On a SPE seat ring: The pressure acting on the upstream side of the
seat ring generates a force which push the seat towards the
ball.The pressure acting on the downstream side of the seat ring
generates a force which pull the seat ring away from the ball.
Any overpressure which may be generated by the thermal expansion of
the fluid trapped in the body cavity with the ball in fully closed
position, will be automatically discharged in the line on the lower
pressure side.
Double piston effect (DPE) is a standard feature for the seat rings of the KELITE trunnion mounted ball valves & recommended for welded body valves. On a DPE seat ring, both the pressure acting on the upstream side of the seat ring and the pressure acting on the down stream side of the seat ring, generate a force which push the seat towards the ball. With this type of seat ring, the eventual overpressure which may be generated by the thermal expansion of the fluid trapped in the body cavity with the ball in fully closed position, can be discharged by the use of an external safety relief device. The Double Piston Effect grants a double sealing feature, if the upstream seat ring is damaged, the down stream seat grant the sealing feature of the valve.
Technical parameters and characteristics:
Product description | Top-mounted trunnion ball valve |
Model | Forging trunnion ball valve |
Nominal diameter | NPS 2～NPS 56 |
Operating temperature | -196℃～220℃ |
Operating pressure | CLASS 150～CLASS 2500 |
Material | A105,LF2,F304,F316, etc. |
Design standard | API 6D,ISO 17292 |
Structural length | ASME B16.10 |
Connecting end | ASME B16.5,ASME B16.25 |
Test standard | API 598,API 6D |
Operation method | Handle, worm, motor-drive unit, pneumatic drive unit |
Application fields | Water, petroleum and natural gas |
Other remarks 1 | A locking device is provided to prevent misoperation of valve. |
Other remarks 2 | Valve stem flyout prevention structure design, to prevent accident due to flyout of valve stem caused by abnormal pressurization in the chamber |
Other remarks 3 | Fireproof and antistatic design |
Other remarks 4 | The valve stem and the valve seat are equipped with an injection system. |
Other remarks 5 | DBB (double block and bleed) function |
Other remarks 6 | Full bore of valve convenient for pigging, of small flow resistance and high flow capacity |
