地下grp管道施工方案-閱讀頁(yè)
2025-05-13 01:44本頁(yè)面
【正文】 amination area shall be required if the waiting period exceeds two hours. Bonding surfaces must be dry and clean before sanding. Use flapper wheel sanders with a small drilling machine (17002000rpm) or emery cloth with a grid of 60. Sanded surfaces must have a dull, fresh finish, not a polished look. Remove any possible dew by slightly heating the pipe ends by a hot air dryer.Other details see attachment A: Field Butt amp。3 After the filling of the gap, the putty shall polymerize, without moving and bumping the pieces. 4 Once pleted the hardening of the putty, grind the outside of the pipe joint and clean with air blow and clean duster cloth.Note : The gap should not exceed the 5 mm or as per remended by Pipe manufacturer at any case. Field Joint Kits PrepareDetails see attachment A: Field Butt amp。 direct sunlight, and should be stored in a dry area and less than 65% humidity in order to avoid surface condensation when used in warmer conditions outside. Lamination on the pipe jointDetails see attachment A: Field Butt amp。 Wrap Joint Procedure Page 12 and attachment B: Installation and Handling Instructions For Rigid Joint Pipe Page 7.11. Quality Requirements1. The joint specification should be verified as per the AMIANTIT process.2. Visual inspection of the laminated joints for external layup.3. Checking the lamination thickness using the measuring tapes also the lamination width.4. Barcol hardness to check the lamination hardness should not be less than 30HBa.5. Full water test is used for gravity flow pipe when it’s pleted. During test for filling with water, the piping shall be full of water, it will be accepted if the water level not lowering.6. Before buried, the coordinates and elevation of the pipe should be checked as per posite drawing.7. All quality inspection work should be according to ITP from DEALIM.12. Safety PrecautionForbidden under loading/hoisting the pipe by passing a rope through the section end to end.Don’t use unsafety machine when cutting and grinding, antidust coveralls clothes, full face shield and dust mask should be used for grinding.Chemical splash goggles is remended for chemicals operating。 WOVEN ROVING:SILICAN: Low hazard for usual handling. Repeated exposure may cause skin dryness or cracking. Keep away from heat and sources of ignition.STYRENE: a suspected carcinogen and a suspected toxin to the gastrointestinal tract, kidney, and respiratory system. Chronic exposure to styrene leads to tiredness/lethargy, memory deficits, headaches and vertigo.Portable water station and fire extinguisher should be located nearby.Before start work, all relation people receive safety education from safety department.PPE REQUIREMENTS:Safety glass and gogglesSafety shoesDust masks.Safety helmetSafety harness (in case of high elevation).Face shield with glass for grinding works.Chemical protection gloves and latex glovesOther Details see attachment A: Field Butt amp。 Wrap Joint ProcedureAttachmentB Installation and Handling Instructions For Rigid Joint PipeAttachmentC Field Lamination Process SheetAttachmentD JHA for GRP Piping Installation In ACVC PlantAttachmentE U/G GRP Piping Organization ChartAttachmentF Interior layout for Amiantit Resin amp。 Catalyst StorageResin, WFluid
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