ZIGONG WEITE VALVE MFG CO., LTD
Take quality as life, market as the core,innovation as the foundation
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8'' Class 900 Carbon Steel Trunnion Mounted Ball Valve Body WCB
Product Description
It is suitable for long-distance pipelines and general industrial pipelines, and its strength, safety, and resistance to harsh
environments have been specially considered in the design.
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.
| |
| 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 Manufacturing Co., Ltd. has successfully developed a wide range of advanced inspection and testing equipment from control of casting blanks and forgings to final product quality. Due to our long-term pursuit and control of quality, our products have good sealing performance, flexible use and long service life, and have won more recognition from end customers.
