Forged Steel Oil Pipeline Valves Trunnion Mounted Ball Valve
Product Description
The Trunnion Mounted ball valve which has two valve seats, which can be sealed in both directions, so
there is no direction limit for installation, no matter which end of the valve can be used as the upstream end,
it is a two-way valve.
Trunnion Mounted Ball Valve Design and Application
Weite valve has 15 years experience in manufacturing of The trunnion mounted ball valve.We strictly enforces
the quality control of ISO9001 , API6D, ASME, B16.34, API608, BS5351,ISO17292, DIN etc.
Our Valves can widely use in the industry of Petroleum, Natural gas,Chemical, Light, Ore pulp,
Electrical, Food, Metallurgy,Coal-to-liquids, long distance pipeline and various industrial facilities.
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 Plant and machinery
General lathe, horizontal lathe, CNC lathe, boring machine, CNC drilling machine, sawing machine
Hydraulic valve testing machine
Your message must be between 20-3,000 characters!
