3 Pieces Steel Forging Trunnion Mounted Ball Valve DBB Function Body Material LF2
Product Description
The middle of the three-piece fixed ball valve is bolted. According to the material of the valve seat and gasket/packing selected,
it is suitable for different working temperatures and media, and the valve is generally installed horizontally.
Trunnion Mounted Ball Valve Design Features:
1. Design and manufacture according to API 6 D
2. The structure length is in accordance with ANSI BI6.10
3. Connecting flange: ANSI BI6.5MSS-SP44
4. Valve inspection and test according to API STD.598
5. The socket end conforms to ASME B16.11
6. Threaded connection end (NPT) conforms to ANSI/ASME B1.20.1
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 |
Applications:
Petroleum Refining
Oil and Gas Production
Petrochemicals
Chemicals
Marine
Pulp and Paper
Power Generation
Steel / Primary / Metals
Weite Valve
Workshop
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.
Q: What's your package?
A: In standard export plywood case, also could be designed as your request.
Q: Could you put our logo on the package?
A: Yes, we can print your logo on the package.
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Forging LF2 Trunnion Mounted Ball Valve Images
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