High Pressure Class 600 Forged Trunnion Mounted Ball Valve WCC
Product Description
The Trunnion Mounted ball valve adopts the advanced spring
preloaded floating valve seat assembly
and the design mechanism of the upstream seal, so that the valve
can be well sealed under low pressure,
high pressure and vacuum. Each valve 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 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 |
Trunnion Mounted Ball Valve Feature
Upstream Seal Two-way Valve
Fire-Safe Design API607/API6FA
Valve Cavity Preesure Automatic Relief
Stem and Seat Emergency Sealant Injection
Double Block and Bleed
Company Profile
Zigong Weite Valve Mfg Co., Ltd. was established in 2007,with 15
years manufaturing experience.Our plant
area is 15,400 m² ,with a technology research and development
center.Our R&D team consists of experienced
superior valve experts and engineers that can according to
customers’ requirement for OEM and ODM.
Most important that we strictly enforces the quality control of
ISO9001 , API6D, ASME, B16.34, API608, BS5351,
ISO17292, DIN etc.Our QC management covers the whole procedure.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.
Workshop
Shipment:By Sea,By Air
