Purpose
- Offshore mobile workshop for shut off, control and pressure safety valves testing.
Tested valves
- Pressure safety valves DN 10...300 mm (3/8...12″).
- Shut-off and control valves DN 10...250 mm (3/8...10″).
Complete set
- Clamping system for PSV DN 10...300 mm (3/8...12″).
- Clamping system for shut off valves DN 10...250 mm (3/8...10″).
- Control station.
- Computer registration system with air leakage measuring system.
- Video control system.
- Workstation for PSV assembling/disassembling.
- Jib crane.
- Armored wall.
Workshops are based on:
Options
For customer convenience, workshop can be equipped with:
- Jib or overhead crane 0,5 ton or 1 ton capacity.
- Heating, ventilating and air conditioning (HVAC system).
- Armored wall between operator and testing room with door interlock.
- Pressure isolated operator room.
- Remote video control (CCTV).
- Various furniture (wardrobe, chairs, table etc.).
- Doors or gates on the sides of the workshop.
- Portable on-site PSV testing unit.
- Portable grinding and lapping unit.
Functions
Available functions of the workshops:
1. Disassembling/assembling of the valves.
2. Washing/sandblasting of the valve parts.
3. Testing of shut-off and control valves:
- shell test acc. to API 598, API 6D, ISO 5208 etc.;
- seat leakage test (cavities A to B, B to A) acc. to API 598, API 6D, ISO 5208 etc.;
- backseat test acc. to API 598, API 6D, ISO 5208 etc.;
- DBB/DIB test acc. to API 598, API 6D;
- control valve seat leakage test, acc. to ANSI FCI 70.2, IEC 60534-4, EN 1349 etc.
4. Testing of pressure safety valves:
- set pressure definition acc. to API 526, ASME Section VIII, API RP 576;
- reseat pressure definition acc. to API 526, ASME Section VIII, API RP 576;
- seat leakage test acc. to API 527.
6. Grinding and lapping of sealing surfaces.
7. Minor machining of the valve parts.
