Electric Actuator Forged Steel Trunnion Mounted Ball Valve LF2
Product Description
The Trunnion Mounted ball valve is a ball valve with a fixed shaft. It is supported by two fixed shafts connected to the ball.
Trunnion Mounted Ball Valve Test Procedure
| HYDROSTATIC SEAL TEST API 6D 10.3 and 10.4 |
| Sequence |
Area Pressure |
Duration(min) |
Description |
| SHELL TEST |
|
A |
1.5xPN |
6″-10″ |
5 |
1. Valve in partial open.
2. Set the pressure to 150% PN.
3. Reduce the pressure to 50% PN.
4. Reset the pressure to 150% PN.
5. Hold the pressure for the duration of testing.
|
| B |
1.5xPN |
12″-18″ |
15 |
| C |
1.5xPN |
20″-60″ |
30 |
| SEAT TEST |
|
A |
1.1xPN |
5 |
Seat hydrostatic seal at A end towards body B |
| B |
Atmospheric |
| C |
Atmospheric |
| |
A |
Atmospheric |
5 |
Seat hydro seal at C end towards body B |
| B |
Atmospheric |
| C |
1.1xPN |
| |
A |
1.1xPN |
5 |
Seat hydro seal test for both A and C |
| B |
Atmospheric |
| C |
1.1xPN |
| AIR SEAL TEST API 6D 10.4 |
| SEAT TEST |
|
A |
Atmospheric |
5 |
Seat air seal test at A end towards body B |
| B |
Atmospheric |
| C |
80PSLG(5.5bar) |
| |
A |
80PSLG(5.5bar) |
5 |
Seat air seal test at C end towards body B |
| B |
80PSLG(5.5bar) |
| C |
Atmospheric |
Weite Valve
Zigong Weite Valve was established in 2007, which is a scientific and technologic ball valves factory integrating R&D,
Manufacturing and Sales.Our company located in Zigong Aviation Industrial Park,Sichuan Province,China.
We strictly enforces the quality control design standard ( API6D, AMSE B16.34, API608, BS5351, ISO17292, DIN etc)
to produce various floating ball valve, trunnion mounted ball valve, top entry ball valve, all welded ball valve, metal to metal
seal HTHP ball valve, V-type ball valve, multi-pass (3 or 4 ways) ball valve, one-piece ball valve and all kinds of gate valve,
globe valve, check valve, butterfly valve applied in industry. Our production range DN 1/2”~40” (DN15-1000mm),
PN Class 150 ~ Class2500 (1.6MPa - 42MPa), Working temperature (-196°C~680°C). Main material is carbon steel,
low-temperature steel, stainless steel, alloy steel (20# & hastelloy) etc. Also we can do ODM according to customers’
working condition.
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