commissioning of water pipelinecommissioning of water pipeline

Each pivot lug shall be one-piece cast iron. Valves shall be of the double flanged cast iron wedge-gate type unless otherwise stated. (g) All persons entering a manhole or confined space must wear a safety harness properly rigged to the lifting frame. This was collected as part of a survey conducted every four years to understand drinking water infrastructure needs. The Engineer will without unreasonable delay inspect the said trench formation, unless he considers it unnecessary and advises the Contractor accordingly. ", "As Texas and Mexico reel from a heatwave and wildfire smoke descends on parts of the U.S. again, a federal agency approves construction of an unnecessary, dangerous gas pipeline.". (a) the Contractor shall not excavate the last 150 mm until immediately before beginning construction work except where the Engineer permits otherwise. Temporary barriers and fencing shall not be removed without the Engineers written permission, which will not normally be given until the trench excavation has been refilled and reinstated. UV ultra violet, u superimposed, uniformly distributed dead load at finished surface kPa 1 UK gallon 4.54609 dm3 The ITP shall detail all the certificates and documents that shall be provided by the pipe manufacturer, together with details of the testing that they shall undertake, its frequency and associated test reports. 7. Great Lakes Commission Contact us. The Contractor is to agree a screening location with the concerned municipality. All costs associated with the testing, together with any consequent rectification of faults and retesting shall be borne by the contractor. Material requirements for pipe joint seals used in water and drainage applications. Again maintain this pressure for two hours by adding water whenever the pressure drops by 0.2 bar. 6. The Contractor shall not mark boundary walls to properties in any way whether deliberately for identification purposes or accidentally. (b) The manhole or confined space must be thoroughly ventilated by mechanical air blower prior to entry. 13. Non-rising spindles shall be fitted with thrust collars and arranged so as to transmit the thrust arising due to the operation of the penstock directly to the penstock frame. Commissioning The spigot end of the pipe shall then be inserted into the socket of the adjoining pipe using a suitable tool to push the spigot into the socket. Care shall be taken in preparation of samples of non-homogenous materials to ensure that only the face that will be exposed to the corrosive environment in the sewer is exposed to the acid during the testing. 9. Cut-off walls shall be provided at a maximum spacing of 40 m with one at each manhole and structure and at least one cut-off wall between two adjacent manholes and structures. When necessary, barriers and fencing shall be illuminated. SECTION 2: CEO STATEMENT SECTION 3: ABOUT THE COMPANY SECTION 4: VISION, STRATEGY AND GOALS SECTION 5: GOVERNANCE AND ENGAGEMENT SECTION 6: PEOPLE SECTION 7: PRODUCTION SECTION 8: Subsequent test results have been obtained using a system with a VLT frequency converter (with RFI filter module) a screened control cable and control box with potentiometer, You will need to demonstrate, in a way that is appropriate for your workplace, the level of your personal commitment to doing the programme, to your workplace, and how this aligns, Mesa Water Travelers are entitled to submit a claim for actual, ordinary (not lavish or extravagant) and necessary expenses for transportation, meals, lodging, and, * H1 F2015 versus H1 F2014 of H1 F2015 group core operating profit 20% SEGMENTAL REVIEW Manufacturing Target range 6 8% 34 Manufacturing. The final test shall be applied in the presence of the Engineers Representative. (a) the manufacturer at the place of manufacturer, (c) a third party on behalf of the Engineer, (a) in accordance with the manufacturers recommendations subject to the approval of the Engineer. If the level rises the manhole or confined space must be evacuated immediately. Manganese steel shall conform to BS 970 Pt 1 Grade ISO M19. shall be clearly marked as ID on each length of produced pipes. The minor pressure difference shallbe compensated by the pressure vessel, but as time passes the jockeypump will start. Plastic piping systems for drainage and sewerage with or without pressure. 5. 9. (b) PE pipes and fittings of less than 90 mm OD shall be joined together using electro-fusion couplings and fittings. For mechanically jointed pipes the plain end shall protrude from the surround by a maximum of 300 mm or that distance required to make a proper joint. The lift shall be a liftnut for tee key operation or gear/handwheel lift as designated. (b) The frame shall be fixed to the wall using nuts and bolts Grade 316 S31 stainless steel. A minimum of two coats shall be applied to attain a minimum total dry film thickness of 400 m. The placement of all steel shall not vary from the designated position in the pipe wall by more than 6 mm from the nominal position. The execution of surveys, recording of data and preparation of record sheets shall comply with the following requirements: 3. For the purpose of reducing the angular deflections at pipe joints, and for closure sections, the Contractor will be permitted to install pipe sections of less than standard length. 1 Imperial pint 568.261 cm3 All borrow pits shall be left in a tidy and regular state. The Utilities and Transportation Commission today approved a plan to implement a new area code to address the need for additional numbers in the Seattle area. 6. All pipework shall be cleaned with disposable alcohol impregnated wipes prior to undertaking the pipe scraping, in order to remove any contamination. Pressure pipelines and treated sewage effluent pipelines shall be flushed and a swab passed through. Figure 1 Graphical Representation of the Hydrostatic Test Process Case 1 Pipeline passes test without adding any make up water Figure 2 Graphical Representation of the Hydrostatic Test Process Case 2 Water to be added to determine if the pipeline passes or fails. 6. Gaskets shall be provided to isolate aluminium alloy from other material. Stepped couplings of this general type shall be used when stepping from one pipe material to another of the same nominal diameter, (b) split sleeve type couplings shall consist of one gasket, two housing clamps, and two bolts and nuts to obtain the flexibility for connecting the piping. 1 yd2 0.836127 m2 The Contractor shall be responsible for taking the measurements required to determine the lengths of cut portions of pipes for insertion as closing lengths in pipelines. Share sensitive information only on official, secure websites. All nuts shall first be tightened by hand and nuts on opposite sides of the joint circumference shall then be alternately and progressively tightened with a spanner so as to ensure even pressure all around the joint. 3. 9. Safework Method Of Statement. 2. If applicable, additives necessary to impart specific properties to the resin may be used, subject to the approval of the Engineer. (d) in areas accessible by the public, the maximum length of open trench in any one section shall not exceed 100 m. In other areas the trench shall be dug only so far in advance of pipe laying as the Engineer shall permit. Pipes shall be laid such that joints occur either side of the structure or in a manner approved by the Engineers Representative. Each log shall be provided with a stainless steel eye bolt at each end which fits into a recess in the under surface of the next log. 1. The PE Welding Technician shall hold a valid GW330 Welder License or equivalent issued by a national body approved by the Engineer, which shall be subject to annual renewal by attending a re-examination course. The Contractor shall produce accurate records of the exact location of all service connections and shall include for these in his rates. Unless provided in the Project Specification, surfaces shall be restored to a condition conforming to the requirements for the particular surface described in the relevant section of this Specification. (d) Polypropylene sleeve couplings shall not be used. 1. (d) bell holes and holes and depressions for couplings, valves and the like shall be excavated the same distance below these installations as specified for the pipe. The sealing faces and side guides shall be EPDM having a high resistance to sliding wear and shall be to the approval of the Engineer. 4. The acceptability of the pipes and fittings on delivery to the Site will be based on the results of tests carried out by one or more of the following: 3. These meetings are held in collaboration with our State Partners, the Federal Energy Regulatory Commission (FERC), and Canada's National Energy Board (NEB). The static water level shall be drawn down a minimum of 300 mm below the bottom of the excavation so as to maintain the undisturbed state of the foundation soils and allow the placement of any fill or backfill to the required density. Such reports shall include reference to any changes in surface condition and colour of the samples, changes in colour of the liquid, and any presence of any particles in the liquid. Non-ferrous metal sealing faces shall comprise accurately machined gunmetal or bronze strips bedded and fixed to machined recesses in the frame and door. As with any material, a clean installation starts with keeping dirt and debris out of the tube and fittings prior to installation. No pressure shall be applied to thrust blocks until the concrete has matured for at least seven days. Ensure that the water supply pumps are precommissioned &commissioned in line with the approved procedure. (d) Steel reinforcement shall be accurately placed in the concrete wall. Plastic irrigation drip pipe work shall be completely filled with water and visually inspected for leakage. The resin from which the pipes and fittings are manufactured shall comply with the requirements of ISO 4427 Part 1 and be protected from UV attack by the addition of carbon black in accordance with the standard. 3. Pressure vessel & jockey pump:The water outlets in certain floors shall be opened & the pressure dropin the system shall be observed. Fasteners like nuts, bolts and washers of stainless steel shall be provided. (k) Phase3 At the end of the second two hours release the pressure back down to the phase I level i.e. Prior to issue of a Certificate of Completion a CCTV survey shall, on the instruction of the Engineers Representative, be carried out on a representative sample of no more than 12% of the length of constructed pipelines. The Contractor shall be deemed to have included all provisions within his tender for the topographical survey information which should include: - features (fittings), manhole chamber co-ordinates/levels in a widely used Data Exchange Format (DXF), accurate positional survey drawings (i.e. Adjustable pressure range from 1.0 bar to 8.5 bar. When support of excavation is provided building paper shall be placed against that support before concreting to facilitate withdrawal of support. 11. If the opening through the concrete cover slab is less than 750mm square, then the concrete slab shall also be replaced. Positioning tools including suitable alignment clamps shall at all times be used to minimise misalignment and prevent movement during the fusion and cooling cycle of the joint. BEFORE THE PUBLIC UTILITIES COMMISSION OF THE Full depth gates shall not be acceptable. All exterior surfaces of concrete pipes shall be coated by the pipe manufacturer with a heavy duty, solvent free epoxy suitable for application to fresh concrete as specified in Section 5. All other requirements shall be as specified in Clause 5.11.2 herein. No joints shall be coated until hydrostatic testing of the joints is successfully completed. 3. All plastic materials shall be non-toxic ultraviolet stabilised and shall have fire resistance as specified in BS 475 and be to Class P and Class I of Part 5 and 7 thereof respectively. The Contractor shall carry out preliminary tests on trial mixes to attain the specified crushing strength. If an existing service is found within a structure to be abandoned, the Contractor shall inform the Engineer and carry out the Engineers instructions for ensuring that the service pipeline is retained or restored. (a) shall be free of organic and deleterious matter and shall consist of strong durable crushed un-weathered rock or stones having roughly cubical or pyramidal shaped fragments, graded and tested from a source approved by the Engineer. The COVID-19 pandemic caused fewer days to be devoted to construction in 2020 and 2021, but PHMSA is returning to more regular inspection activities and expects the days to rebound. 8. Colorado Public Utilities Commission. 2. The Contractor shall, at his own expense, furnish all equipment and materials for making the tests. (a) no length of trench excavation shall begin until the pipes and fittings to be laid in the length of excavation are available at the Site. (e) pipes and fittings of plastic materials shall be covered. Table 4.2 - Special Bedding Requirements for VC Pipes. The Contractor shall take pipes from the storage areas, unload and string along the route of the proposed pipeline. 2. 1. (g) insufficient cover to the reinforcement. Sg hydraulic gradient m/m (g) Identification number stencilled on the inside and outside at each end. Unless otherwise stated in the Contract Documents one tee key per ten valves that are to be tee key operated, shall be provided for each site. (c) Only experienced men shall be employed by the Contractor on this work. 3. They shall comprise at least 1 of each type of electro-fusion fitting even if this requires more than 1 % of all electro-fusion fittings to be tested. They shall be tested and certified as being class 1 end load bearing fittings i.e. NOTE: Individuals representing themselves arenotrequired to be represented by an attorney. ", Basav Sen, the climate justice policy director at the Institute for Policy Studies, 3. All fasteners shall be stainless steel. New area code coming to Seattle area - utc.wa.gov of the pipe ends to be joined. Valves shall have an average tensile strength of 240 MPa. 4. (b) one test per backfill layer for every 30 m of pipeline trench. 5. Where manholes are located in road carriageway, the covers shall be non-rock double triangular Class D400 unless otherwise designated. The adjusting devices and fasteners shall be of stainless steel conforming to BS 970 Part 1 Grade SS 316 S31. Pipelines and service connections to be abandoned shall first be emptied completely. 8. The pipe manufacturer shall submit type test results according to EN 14364 or ISO 25780 for each product group. The fabric shall be woven or non-woven consisting of long chain polymeric filaments or yarns formed into a stable network such that the filaments or yarns retain their relative position to each other. Related Parts and Sections are as follows: 1. 4. Where removal is impracticable and with the approval of the Engineer, temporary works shall be left in place. If 'O' ring stem seals are provided, the Contractor shall provide with the valve, two replacement sets of rings labelled with the project number, manufacturer, valve model reference and size of valve. 2. 2. Valves shall have balanced plugs to assure low torque and drip-tight shut-off. Valves, penstocks and appurtenances shall be supplied by approved manufacturers as designated in the Project Specification. The reinforcement shall be made from chopped glass filament in long and short fibres and shall have a surface treatment compatible with the resin to be used. 6. Allie Rosenbluth, United States program co-manager at Oil Change International, also took aim at the president. ISO 4633 .. Rubber Seals - Joint Rings for Water Supply, Drainage and Sewage Pipelines - Specification for Materials. A support shall be provided for each valve and special fitting. 4. 8. The final test report shall give full details of: 13. 2. 3. DIN 16 869 - Part 2 Glass-fibre reinforced polyester resin pipes (UP-GF) Centrifugally cast filled Part 2: General quality requirements, testing. Keep track of PUC news and activities with press releases delivered straight to your email inbox. Internal and external surfaces shall be free from irregularities, which would impair the ability of the component to conform to the requirements of EN 14364, EN 1796 or ISO 25780. Density 1lb/ft3 16.0185 kg/m3 The batch no. The installation of liner plates in concrete pipes or structures, and the sealing and welding of joints, shall be carried out in strict compliance with all applicable specifications, instructions and recommendations of the plastic liner plate manufacturer. The phone number you will be using to call into the public input hearing. 2. Covers shall be capable of withstanding a 5 tonne wheel load when filled with Grade SCR 25 concrete, or such other load as may be shown elsewhere in the Contract Document. The remainder of the lining shall consist of layers of vinyl ester resin and powder bound ECR acid resistant glass chopped strand mat or roving, depending on the method of manufacture, with a glass content of between 25% and 35% by weight, when the filament wound manufacturing process is used. When directed by the Engineer, the Contractor shall establish a specified number of groundwater level monitoring stations at each site which shall be observed during the work. 5. 1. 6. In such cases only the barrels of the pipes shall be backfilled prior to hydraulic testing taking great care to avoid the joints and leaving sufficient space all round the joints to permit inspection and to undertake remedial measures should the joint be found to leak under hydraulic testing. 1. 4. Slips and falls in trenches shall be prevented as follows: 1. (v) positions of additional temporary control points shall be determined by. Hair cracks on the outside may be permitted with repair if not longer than 200 mm circumferentially or 6 mm longitudinally. Ensure that the entire system is cleaned internally & externally. The valves shall be of the quick acting single door type designed to minimise slam on closure by means of heavy gunmetal-faced doors weighted as necessary. Trench excavation shall be carried out expeditiously in the following manner: 1. 4. water pipelines Table 3.2 External DI Pipe Coating Systems. 2. The release of groundwater to its natural static level shall be performed so as to maintain the undisturbed state of the natural foundation soils, prevent disturbance of compacted fill or backfill and prevent floatation or movement of structures, pipelines and sewers. Unless otherwise shown on the Contract Drawings, where pipes pass through a concrete wall or structure they shall be protected with a surround of Grade 20 SRC concrete integral with the external face of the structure. Prior to delivery of any pipes or fittings the pipe manufacturer shall provide the Engineer with a comprehensive Inspection and Testing Plan (ITP) for their approval. Water and Wastewater, Application by Towamencin Township Also Seeks PUC Permission to Abandon Service Upon Closing of a Separately Proposed Acquisition by the Pennsylvania American Water Company. Ductile iron shall conform to BS EN 1563 unless otherwise specified. Material for pipe surround and to the first 300mm above the top of the pipe, shall be granular material as specified in Clause 2.3.1. A minimum of one item of each type and size shall be tested. Pipes and fittings shall be subject to visual inspections after off-loading at site and before installation. 1. A suitable external locking device shall be provided on the non-drive shaft end, to enable the geared unit to be removed with the valve remaining in service in the open or closed position. The design of the frame and cover and plate shall be subject to the approval of the Engineer. The Contractor shall allow for laying pipes through any cess pits or septic tanks encountered along the route. y pipe deflection as a beam mm Note that the minimum test requirement is for one fitting of each type i.e. 2. Testing & Commissioning Of Water Supply Piping System Network Actuators are specified in Section 21. All welding of liner plate shall be carried out by properly trained and approved workmen. MB bending moment at point B Nm Where indicated on the drawings or elsewhere in the Contract Documents, Vortex Flow Control Devices shall be manufactured from corrosion resistant materials as follows: 1. 11. Grub screws, pins (parallel to taper) or clamps will not be acceptable. Flanged valves shall be faced and drilled minimum PN 16 standard and shall have face-to-face dimensions of standard sluice valves. The pipe manufacturer shall undertake the following minimum batch release testing. Bolts shall be stainless steel grade to BS 970 Grade 316 S31. 7. (f) pipe hangers and supports shall generally be fabricated in Mild Steel. The work shall not proceed unless such training has been accomplished to the Engineers approval. Valves shall be suitably designed to protect the disc edge from the effects of corrosion and erosion. The contents including sludge from these structures, whether undiluted or mixed with sand, shall be disposed of off the Site by the Contractor to a location approved by the Engineer. 1 lb 0.45359237 kg 5. Carbon steel fittings and flanges shall conform to ASTM A105. Modifications or adjustments required to meet the test shall not impair the smooth operation of the equipment. 8. The material shall also conform to the requirements mentioned in Clauses 3.3.2, 3.3.3 and 3.3.5 of Section 6. (m) Phase3Case2 If after one hour the pressure in the pipeline has fallen below the operational pressure, water shall be added to raise the pressure back to the operating pressure level, having first noted the low pressure before adding any water. The completed joints between precast concrete rings shall have an insitu applied sealing strip at least 6mm thick overlapping the GRP liner by a minimum of 150mm each side. Ensure that the same number appears on all record sheets and documents relating to the manufacture, delivery and testing of that pipe. The width of the excavation shall be increased if necessary to provide space for the trench support system; undercutting of the trench sides will not be permitted. Hose pipes shall have a certified test pressure of 1.5 times the maximum operating pressure. The notice shall be in the form of a self- adhesive glossy sticker which shall be easily removable. Ts static thrust at blank ends and junctions kN COMMISSION Steel shoulders shall be provided and welded to the pipe ends to accommodate the couplings. The power generator shall provide the power requirements of the control box, taking into account the electrical characteristics of the control box. The Contractor shall keep excavations free of water, sewage, and other liquids whether affected by tides, floods, storms, or otherwise so that the Works shall be constructed in dry conditions. "Biden and his administration allowed MVP to skip important permitting processes meant to protect people and the environment, betraying communities and his voters," she said. Handling shall be carried out as follows: 8. (d) if not on pallets or not crated, stacked one above the other as follows: in accordance with the manufacturers recommendations but not to a greater number of tiers than the following: pipes 900 mm diameter 2 tiers, < 900 mm 600 mm diameter 3 tiers, < 600 mm diameter 4 tiers, (i) suitable protective packing shall be placed between tiers to the approval of the Engineer, (e) if spigot and socket, stacked so that successive pipe layers have sockets protruding at opposite ends of the stack, (f) with pipes of different sizes and thickness stacked separately. 3. (i) the Contractor shall plug all pipe outlets with suitable plugs, and brace each plug securely where needed. The plate shall fit between the cover and the frame such that no surface area of the frame shall be exposed to the atmosphere within the manhole. 3. The Contractor shall keep a record of all tests in a book which shall be available for inspection and handed over to the Engineers Representative on demand. WebPart Overview. All liners shall comply with the following standards: 4. (b) comply with the provisions of BS EN 752, BS 8010, and BS 8301. (v) stock shall be extruded or moulded with smooth surfaces to the designated size within a tolerance of 6 % measured on joint cross-section dimensions. 3. FERC's move came after the president earlier this month signed debt ceiling legislation he negotiated with congressional Republicans, which The Contractor shall monitor the vertical deflection of the pipes throughout the backfilling operation. Notwithstanding the requirements of this Clause, the Contractor is responsible for the safe and correct transport, handling and use of explosives. Where pipelines are not laid to straight lines between chambers or fittings the co-ordinates of every pipe joint shall be recorded prior to covering up the pipeline. Valves shall be rated at 1000 kPa at 100 C unless otherwise specified. 7. 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The Contractor shall take particular care to ensure that fully compacted concrete is in contact with the pipe at all points. 4. 1. Headstocks and foot brackets shall be provided for non-rising spindle penstocks where the latter are specifically called for. Hose pipes for fire fighting shall be in accordance with Section 23.