Active Member
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[China]
Address: No.3 Hangfa Road,Aviation Industrial Park,Gongjing District,Zigong City,Sichuan Province,P.R.China
Contact name:Chris
ZIGONG WEITE VALVE MFG CO., LTD |
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WCB Carbon Steel Trunnion Mounted Ball Valve Flanged 24'' Class 300
Product Description
The Trunnion Mounted ball valve have two valve seats, which can two direction seal.Therefore there is no restriction
on the installation direction, either side of the valve can be used as the upstream side, it is a two-way valve.
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.
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| 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 | |||||
24'' 300LB Carbon Steel Trunnion Mounted Ball Valve Details
