You will receive a link to create a new password. Toggle navigation. Embed Script. Size px x x x x Document No. Continuously check and review the changes status during the work. Pipes shall be stored in open area resting on wooden sleepers, fittings, bolts, nuts, and gaskets shall be stored in shelved containers. Storage and issue procedure of piping materials shall be in time with the requirements.
The use of off-cuts in straight run shall be avoided. In addition, for large diameters pipe rag cleaning should be conducted if found practical. Extra length for pipe shall be provided in spools for field adjustment. Flame cutting of Stainless Steel is not allowed. Stainless steel shall be cut with Stainless Steel cutting disc. The edge cleaning and beveling shall be done using abrasive grinding disc. S Gas cutting, Machining or grinding methods shall be used.
After gas cutting, machining or grinding shall be carried out on the cut surface. After cutting, cut surface shall be machined or ground smooth. Tack weld shall be done by a qualified welder as per approved WPS. Reinforcement material shall be made from the same pipe material as specified by the relevant piping class and subject to the same specification requirements as the piping to which it is attached. The minimum distance from a 7. The maximum angular deviation of bolt holes shall not exceed 1.
The criteria given in related WPS shall be followed. In addition, for large diameters pipes rag cleaning should be conducted if found practical. Activities shall be done according to the proper method statement for lifting and handling. Threaded ends shall be plugged and sealed by waterproof grease tape or purpose made plastic caps or plugs.
End cap or cover shall be placed on the open valve ends. The sequence of composite spool will be same as of random length. A minimum of one complete thread shall protrude from the nut after completion of tightening. A logical sequence of Bolt tightening shall be followed. The ends shall be completely dry before the welding. The bore side shall be ground smooth, free from cracks. Pre heating and welding consumable shall be checked before starting of welding.
The cleaned area shall be free from slag. Any visual defects like cracks, pores, spatters weld shall be removed by grinding before the next layer is applied. The ends of weld layer shall be removed by grinding at take-up points of each weld. The threading dies shall be sharp and properly designed for the piping material. However permanent gaskets may be used for the flanged joints which will remain unopened during and after pressure test.
Screwed tapping, for example in orifice flange sets, shall be plugged. The gauges shall be calibrated and certificate attached to test package before pressure test. The maximum range of gauge will be 1. The test pressure for process or power pipe work shall be for a minimum of 30 minutes or as required to inspect the line.
Then the complete discharging of the system through the drain valves is taken up, keeping the vent valves always open. The line shall be de-pressurized and drained completely.
Water used for flushing and cleaning austenitic stainless steel shall contain less than 1ppm chlorides. He shall ensure that barricades, warning tapes, warning signs, firefighting equipments and first aid kits are readily available at the working area.
Feedback will then be processed and resolved. HSE Dept 3. The Eil Approved Butt-weld Fittings are available from us in various sizes and shapes with different coating options as well. Please feel free to contact us for more information on the different types of Eil Approved Socket Weld Fittings and others with pricing. EIL Approved Fittings. Eil Approved Elbow. Eil Approved Reducer.
Eil Approved Pipe Tee. Eil Approved Socket Weld Flanges. Eil Approved U Bend. OD inch Wall Thick.
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