Body A350-LF2 Trunnion Mounted Ball Valve Big Size 16 Inch 300LB
Feature:
1. The fluid resistance is small, and the full-bore ball valve basically has no flow resistance.
2. Simple structure, small size and light weight.
3. Tight and reliable. It has two sealing surfaces, and various plastics are widely used for the sealing surface materials of the
ball valve at present, which has good sealing performance and can achieve complete sealing. It has also been widely used in
vacuum systems.
4. Easy to operate, quick to open and close, only need to rotate 90° from fully open to fully closed, which is convenient for
long-distance control.
5. The maintenance is convenient, the ball valve has a simple structure, the sealing ring is generally movable, and it is more
convenient to disassemble and replace.
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
We have a plant area of 15,400 m2 and is equipped with a technology research and development center.
Manufacture and selling Various ball valves(types of floating, trunnion mounted, top entry, all welded, metal seal HPHT,
Three-way,Four-way etc.).We will provide different materials to customers according to different working conditions,such
as carbon steel, low temperature steel,stainless steel, alloy,etc.
Factory Equipment
Shipping
FAQ:
Q: Why Choose Weite Valve?
A: 1. We are manufactory, we can provide cost effective products.
2. We have full experience in valve industrial, both our sales team and technical engineers can provide you
professional solution.
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