Project Management Team, hydro/pneumatic pressure testing engineer and all personnel working on site. The surfaces of the edge shall be free from tears, grease, oil slag, scale or internal burrs. The file extension - PDF and ranks to the Documents category. The following procedure shall be followed for receiving, storing and delivery of all the materials. Report "Method Statement FOR Piping Fabrication And Erection" Please fill this form, we will try to respond as soon as possible. Heat numbers has to be transferred to pipes after cutting; remaining material must keep allocated locations with all marked specifications. 2.1.System requirements are identified from job design criteria, specifications and standards. Large-sized fittings, flanges and valves shall be stored on wooden pallets and no material is allowed to rest or store directly on ground at all time. This paper. For a mobile crane, outriggers must be fully extended and must rest on proper size outrigger mat (i.e. The material used for coating and painting shall be specified for the specified service in the project specification. All small-sized fittings, flanges and valves, and all of gaskets shall be stored on racks/shelves. Non-return valves, if installed, will require that the piping network be pressurized from the upstream side. Incorrect identification of weight of load. Fabrication (cutting, positioning, fit up, welding). Consumable materials within 15 meters of welding operation shall be cleared. Lateral transition of branches and connections from center-line of the run shall not exceed ±1.6mm. It should also be compacted and leveled off at least 1% grade. Recorded approval of all items at each stage of surface preparation and coating application. When cutting starts, if access permits, a receiving basket for spatters shall be inserted in the inner cutting area of the pipe to avoid adherence of spatters to internal wall of pipe. 20 Full PDFs related to this paper. All lines shall be clearly marked to easily identify the flow direction, service, line designation number, size, class and specification. 2. Appropriate personal protection and protective equipment is required in certain areas and when performing particular work. We have facilities strategically placed around the world that use state-of-the-art technologies and processes. Watch Out! There is document - Method Statement for Pipe Support Fabrication and Installation 6423dp420!00!0030000_rev01 available here for reading and downloading. Weight of load must be accurately taken and should be reflected in the lifting permit. 2 2.1 Select methods of joining and cutting pipe that are appropriate for the materials being used 2.2 Document pipe fabrication requirements on plans Document pipe fabrication 2.3 Include instructions for electrolysis of dissimilar materials on plans where required 3 3.1 Select methods … Position of first aid station, who is the first aid officer and what first aid is available, b. Fit-up assembly and joint alignment shall be carried out, by using couplers or clamps. This is not recommended to do at the shop due to the fact that if there is any minor change while installing, will require a rework. So, here is a "Method Statement for Installation of Ductworks with Accessories." A 6 mm weep hole shall be drilled for dummy supports and shall be located near the base plate for all vertical dummy supports, and near the run pipe at 6 o’clock position for all horizontal dummy supports. Proper base plate and every surface at ground, Scaffolding Supervisor/ Area  HSE Supervisor. The bore side shall be ground smooth, free from cracks. Lifting equipment capacity and correct load slinging will be verified. Project Commercial Management Procedure for Insurance Policies, Project Completion and Handover Procedure. Procedure will help to ensure the compliance of piping works with the contractual applications and HSE requirements. This document also details the tools & tackles, manpower and Inspection and Test plans, to meet the requirements of applicable codes and client’s project specifications for pipe fabrication… In case of needed tie in activity, it shall be done at highest ambient temperature. The method is useful for carbon steels, alloy steels, stainless steels and nickel alloys systems. All materials cut by a flame or arc shall have the edge ground back to clear the affected zone. All electrical, Blast cleaning and spray painting guns shall be earthed (spark proofing) to prevent up of an electrostatic charges, especially when the application is in confined work place. All cables shall be tied up properly & neatly to avoid damages to cables & personnel injuries to operators. The acceptability of the test weld shall be judged as follows. It is a method of jointing pipe ends by way of heating and cooling under pressure, resulting in pipe joints as strong as the pipe itself. are ready in sufficient quantities. Each coat shall be allowed to cure thoroughly as per the coating requirements. For flange to pipe connections if welding shrinkage can lead misalignment, two similar flanges shall be joined by inserting a temporary gasket and then welded. Shall be responsible for check for any unsafe conditions on the working areas and liaise with field Supervisor ensuring that the work is carried out as per approved Project safety plan and procedure. Seal welded and threaded piping shall not be substituted for socket weld piping connections without prior written approval by Company. All stands will be insulated with clean rubber sheeting to prevent contamination of the spools. However permanent gaskets may be used for the flanged joints which will remain unopened during and after pressure test. Screwed connections subject to seal welding shall be made without the use of sealing compound. ISO 4406 Hydraulic fluid power – Fluids – Method for coding the level of contamination by solid particles 9. All parts that may be affected by the welding operations, such as accessories, insulation joints and such, shall be adequately protected. are installed and oriented correctly as indicated on isometrics and drawings. All welds shall be performed in accordance with the approved WPS and Welding material control procedure which shall be displayed on a notice board close to the work. Lubricants should be carefully stored to prevent damage to the container. To prevent loss of traceability during paint / coating process, QC personnel shall make sure that the identification number is transferred to the QC record prior to blasting. Specified subsequent coat shall be applied after the primer coat has cured and correct application has been confirmed and surface been cleaned if necessary. The scope of this method of statement is to define the methodology for pneumatic pressure testing of any kind of distribution or process piping system. Pipe Fabrication. 4.4 No dragging of steel shall be permitted Doc. Reason. Prior to repair welding, preheating around the repair area will be as per the approved WPS. Final measurements and survey data that are required for the completion of as- built drawing shall be recommended prior to back filling. During the activity and works, there will be continuous communication arrangement among all parties i.e. Pipes will be supported at bottom with kegs/ wooden blocks at least at three points and choked with wedges. A short summary of this paper. Necessary Materials a. PVC Pipe & Fittings b. Ductile Pipe & Fittings c. Cast Iron Pipe & Fittings d. The inside misalignment shall not exceed 1.5 mm (1/16”). would be made to suit the pipe sizes. Piping Insulation and Jacketing Method Statement, Air Conditioning Installation Method for DX AC Unit with Refrigerant Piping, Reinforcing Bars Fabrication And Installation Method Statement, Workplace House Keeping Method for Site Contamination Control, Site Preparation and Mobilization Method Statement, Method Statement for Piling Works at Construction Project, Construction Method of Statement for Installation of Above Ground Drainage System, Concrete Pouring Method Statement for Construction Work using Ready Mix Concrete, Project Management Procedure for Surveillance of Subcontractors’ Operations, Construction Project Site Field Testing Procedures, Construction Project Documentation Procedure, Design of Temporary Works for Completing Permanent Works on Projects, Testing and Commissioning Method Statements, Commercial & Finance Management Procedures, Potential pinch, caught-in-between, and crush points. The criteria given in related WPS shall be followed. Figure 2.5: Denesting with padded boom on forklift truck. Purging will be carried out by using the best method for the particular application during welding. Test package shall be prepared as per method statement and procedures. Test packages shall be prepared with all welding / NDT summary, P & ID marked with Test limits, Isometric drawings, support details etc. After completion and approval of hydrostatic testing of the system, all lines and equipments shall be drained and flushed. Identify installation requirements. The application of the compound is applied completely around circumference, a minimum of 200㎜ each side of the cutting area. The requirement of the finished weld reinforcement for all materials should comply with ASME B 31.3 specification for piping. In the case of submerged arc welding of carbon steel the removal method used may be air arc gouging, which shall be cleaned out by grinding to shiny metal. An approved lifting permit must be available before any lifting activity is done. index. The method is useful for carbon steels, alloy steels, stainless steels and nickel alloys systems. Area shall be barricaded adequately with warning barriers prior to any lift. The alignment of flanges to rotating and static equipments to be checked. Pipe shall be properly supported at least 150mm off the ground and aligned by jigs or clamps in order t… How would you suggest a method statement for Tie-ins, both cold and hot tapping starting from spools fabrication at work shop all the way to hydrostatic pressure test after erection? Before starting the Heat Treatment, the contractor assigned for the Heat Treatment shall submit the documents about heating and cooling methods, temperature measuring and recording methods; for the approval of QA/QC department. pipe racks to be made of and what will be the fabrication method? When lifting, the personnel shall not remain in the lifting equipment work area. The welding work piece shall be shielded against high winds and rain. All welders should always keep their identification cards at all times with their name and number plus a photograph, signed by surveyor. Shall ensure that the ground conditions are safe for any lifting operation, and take measures to rectify the unsatisfactory and unsafe conditions. The lateral offset of branches and connections from the center line of run shall not exceed ± 1.6mm. METHOD STATEMENT FOR HRSG WORKS. On completion of each run, craters, welding irregularities, slag etc., shall be removed by the grinding and chiseling. Download PDF. Stainless steel surface shall be blast cleaned by using suitable non metallic abrasive such as aluminum oxide or stainless steel tools all free from halides, sulfur and low melting point metals. The maximum angular deviation of bolt holes shall not exceed 1.5mm measured across the bolt pitch circle. Visual inspection by inspector; Root bead and surface of weld. Welder qualification list review and approval. No mechanical rammer shall be used within 30 cm of the top of any pipe or surround and material shall not be dropped from a height. Hardness testing of production welds is only required if specified. Approved and safe scaffolding and temporary platforms shall be arranged to carry out erection, fit up and welding of field joints at elevated positions. Piece marks and weld identification number shall be marked on each pipe / plate by suitable paint which shall be compatible with the base material to be marked and recorded on the relevant documents. After completion of fabrication, stainless steel are transferred to the pipe stock yard directly and segregated from C.S spools. Sorry, you have Javascript Disabled! The pipes need to be cut, fabricated and welded for fine adjustment for the length at site based on the actual site layout when we install at site. Pre-fabricated spools shall be shifted to site carefully; care shall be taken while handling and stacking of spools to prevent any possible damage. No crane lifting shall be conducted during wind speeds higher than 20 miles/hour (32 km/hour or 9 m/s) and no lift at night. All repairs and initial NDE will be completed prior to stress relieving of the pipe spools. The tilt of a flange- Periphery across any diameter shall not exceed 1.6 mm from the square position. The grinding wheel is marked by an impregnated red dye in the make-up of the disc which denotes chloride free material when used for stainless steel. The inside cutting area by brush, roller or swab blinds shall be used wherever and threaded piping shall done... Plate or pipe is cut be recommended prior to performing main welds, tack welds for correct! 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