Answer»
- All hot work shall be completed
- Strainers shall be removed
- All NDT & DT completion
- PWHT completion
- Adequate attachment
- Coating on weld joint shall be removed.
- Calibration of equipments used. Test blind MTC.
- Test certificates of testing fluid
- Components in new piping systems which interfere with filling, venting, draining or flushing shall not be installed.(orifice plates, flow nozzles, sight glasses)
- All joints (flange, threaded, welded or mechanical seals) are left exposed for visual leak detection during the strength test.
- All permanent flange joints were inspected, gasket mat'l verified & properly torque.
- Drains shall be provided at all low points of the piping SYSTEM.
- Vents and drain valves, both temporary and permanent, conforms with the piping class or rating.
- Supports are installed. Additional temporary support may be installed as required.
- Expansion joints and spring hangers or spring supports are provided with temporary restraints.
- Arc strikes, gouges, and other indications of careless workmanship (such as surface porosity, uneven weld profiles, and UNDERCUT) shall be removed by grinding and inspected by magnetic particle or liquid penetrant method.
- Drains are provided immediately above check valves (vertical lines)
- All threaded joints up to the first block valve of hydrocarbon PIPELINE are seal welded. Thread engagement has been verified & accepted.
- The pressure testing MANIFOLD is separately pressure tested to at least 1.2 times the system test pressure but not less than the discharge pressure of the pump used for the pressure testing.
Line compliance with Isometrics:
- Correct Materials utilized grade/schedule (Bill of Mat'ls)
- Correct flange and fittings rating
- Construction TOLERANCES per SAES-L-350
Line compliance with Isometrics:
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