TYPE OF PIPING PRESSURE TESTING. For large diameter piping hand wipe/ sweep should be applied as much as possible (inspection to be recorded).

Transcription

1 ATTACHMENT A (1/1) TYPE OF PIPING PRESSURE TESTING TEST TYPE TEST MEDIUMS APPLIED (As per Block Dia.) WORK SEQUENCE HYDROSTATIC Water * For SS/HA piping Max. Cl. 40 ppm General CASE-1 (Base Case) CASE-2 (When app. by NIOEC) check/ Dry out PNEUMATIC * Oil free air for IA to air-operated valves and N2 for unit 02 Large Dia Piping - line - Flare - Gas CASE-1 (Base Case) CASE-2 (When app. by NIOEC) check/ blowing blowing IN SERVICE Service Fluid Only Approved by NIOEC check/ Flushing/ Blowing Service test Note for line For large diameter piping hand wipe/ sweep should be applied as much as possible (inspection to be recorded).

2 ATTACHMENT B (1/2) PIPING TEST PACKAGE (TP) FLOW CHART REVIEW / LINE CHECK / PUNCH LIST EXECUTION (PUNCH OUT/ LINE CLEANING/ PRESS. TEST/ POST TEST) DOCUMENTATIO N (FINAL DOCUMENT CONFIRMATION) RECORD EMPLOYER (NIOEC) - Review -line check QC Gr. Piping Gr. -Review -Register - Review QC items -Review -line check Working copy TP Copy Keep by contractor (&NIOEC) Working copy CONST. TP Copy TP Original Keep by CC -Execution TP Original Keep by CC & finally submit to NIOEC - CC will prepare original TP and one copy for working LEGEND: Working copy TP flow Original TP flow Original TP (*) working copy TP flow

3 ATTACHMENT B (2/2) DETAIL WORK FLOW FOR A/G TEST PACKAGE DOCUMENT HANDLING/ LINE CLEANING/ PRESS. TEST/ POST TEST ACTIVITY TEST PACKAGE LINE CHECK NIOEC//PUNCH OUT LINE CLEANING PRESS. TEST POST TEST TIME/PERIOD Three Weeks Before ing One Week Immediately after testing EMPLOYER (NIOEC) - check - QC document review Confirmation of Witness Witness Check Copy of test pack. - check - QC document review Confirmation of Witness Witness Check Copy of test pack. Two Copies Notice No Ok Notice No Ok CONST. Package preparation Follow up Punch Item -Preparation of line (R)* -Preparation of line (R)* -Drain out -(Drying) - Post (R)* - Finalize test package * (R) Inspection record required. TEST PACKAGE : - Contents Refer to Package Contents T TO INSTALL - PSV - Control valve - Thermwell - Strainer element - Orifice plate - All instruments - Disconnect all inst. - Lead pipings INSTALLATION - Control valve - Thermwell - Strainer element - Level Instrument REMOVE - Temporary blind - Other temp. part INSTALLATION T TO INSTALL - PSV - Orifice plate * Spring Hanger set pin do not remove Note 1: NIOEC / Contractor conformation is required.

4 ATTACHMENT C (9/16) PIPING SPOOLS SHOP FABRICATED ISO DRG : INSPECTION SPOOL : Relase Report LINE : CHECK ITEMS 1 CONFORMITY WITH ISO DRG (CONFIGURATION, DIMENSIONS, SIZE, ) 2 PIPE MATERIAL & THIKNESS. CORRECT 3 FLANGE MATERIAL & RATING. CORRECT 4 TYPE & MATERIAL OF FITTINGS, VALVES & OTHER COMPONENTS (if any) CORRECT 5 WELDING COMPLETED, VISUALLY INSPECTED. EXT. & INT (if possible) & ACCEPTED 6 NDE (RT,PT,MT) COMPLETED AND RESULTS STATIS FACTORY 7 PWHT AND HARDNESS TEST COMPLETED SATIS FACTORILY 8 OLETS FOR INSTRUMENTS CONNECTIONS CORRECTLY INSTALLED (LOCATION & ORIENTATION) 9 INSTRUMENT FLANGES TO PIPE WELDED JOINTS ARE INTERNALLY FLUSHED. (SMOOTHED) 10 INTERNAL PARTS OF VALVES & OTHER COMPONENTS PRONE TO DAMAGE WERE REMOVED BEFORE WELDING OR OTHERWISE PROPERLY PROTECTED. 11 VISUAL INSPECTION OF SPOOL FOR DAMAGE (SPECIALLY FLANGE FACES) 12 CLEANINESS OF THE SPOOL EXTERNALLY & INTERNALLY ACCEPTED OTHERS: CONS. CONT. NIOEC FABRICATION & INSPECTION COMPLETED PIPE SPOOL RELEASED FROM WORK SHOP CONS. TOTAL SHOP PREFAB. WEIGHT (kg) = NIOEC

5 LINE ISOMETRIC JOINT NATIONAL IRANINAN OIL ENGINEERING AND CONSTRUCTION COMPANY SIZE INCH WELD TYPE WELDER LOCATION DATE WELDED LINE HISTORY SHEET VISUAL RT PT MT P.W.H.T Report DATE Rep1 Rep2 Rep3 ACCEPT RJ1 RJ2 ACCEPT No. ATTACHMENT C (10/16).: TEST PACKAGE No.: TEST BLOCK No.: P&ID No.: HARDNESS P.M.I Construction Contractor Q/C Contractor NIOEC NAME: NAME: NAME: SIGN & DATE: SIGN & DATE: SIGN & DATE: