(c) The Contractor shall remove from Site any pipe or appurtenance which in the opinion of the Engineer is so damaged as to be unfit for incorporation in the Works. (iv) The layer shall be built up in layers of Type E or ECR acid resistant glass chop roving or continuous roving. The frames and doors of cast iron penstocks shall be made from close grained grey iron. Where caps are fitted they shall be supplied complete with operating tee key. A suitable shelter shall be used in cold, windy, dusty or wet weather conditions. 3. 1. Geotextile membrane for structural support to pipe surround in soft ground shall be wrapped round the granular bedding as shown on the Contract drawings. If soft, spongy, unstable or similar material is encountered upon which the thrust block is to bear this unsuitable material shall be removed and replaced with Grade 20 SRC mass concrete as directed by the Engineer. The cement-bound granular material shall in no case be less than 150 mm thick from the outside barrel of the pipe to the nearest point of the shoring, and the greatest care shall be exercised to ensure complete filling of all voids and thorough consolidation of the concrete. (v) The layer shall be built up in layers of Type E or ECR acid resistant glass chopped fibres. Doors shall be of reinforced natural rubber compound of sufficient flexibility to maintain an efficient seal under minimal seating head conditions. Two complete sets of lifting keys including any necessary spanners shall be provided in each room in which ducts covers are installed. These shall be submitted to the Engineer or his nominated representative for approval before the contract completion date. The Contractor shall issue his risk assessment to the Engineer for his approval prior to applying for a Permit to Work at the site. The PE Welding Inspector shall have attended a comprehensive course on the Installation and Welding of High Density Polyethylene (HDPE) Pipes. ", "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 pipe type test group consists of a range or family of products made such that the results of the long-term type tests are applicable to all products in the group. Primer shall be applied to all surfaces to be wrapped immediately following completion of surface preparation. It's tough right now. While the Main Booster pumps are inoperation, if the pressure drops further to cut in pressure of PS4(12.50 bar), then Third Main Booster pump will start and allthe three main pumps will run. The Contractor shall submit for the Engineers approval, details of his proposed method of working and temporary works installations to achieve this. wq vertical design load due to surface applied live load kPa, w unit weight of pipe (steel, lining and water) N/m Pressure drops due to thermal contraction are acceptable if the pressure returns to the original test pressure after 24 hours. (iii) identification of valves and accessories by tag numbers, where applicable. No property connection work shall commence before approval to the proposed layout has been received in writing from the Engineers Representative. The Contractor shall order materials to suit the construction programme and obtain the Engineers approval of submittals before placing orders. Disc material shall be duplex stainless steel. (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. Other lengths shall be permitted to suit a particular project requirement. (b) The liner thickness of pipes, fittings and couplings shall be measured in accordance with Section 6 of ASTM D3567 resp EN 3126. 1. The valve body shall be of cast iron conforming to BS EN 1561 with flanges conforming to BS EN 1092 PN16 or BS 10. 6. 3. Valves with operators shall be suitable for operation with flow in either direction. Unless otherwise specified each valve shall be provided with a suitable handwheel of adequate diameter for the duty required and gearing shall be supplied where necessary to ensure that the required operating force applied by hand to the rim of the wheel does not exceed 25 kgf. All fittings shall be push-on joint with mechanical fittings. All joints shall remain watertight for all combinations of angular deflection and draw up to the maximum allowable values. 7. 2. What's New: EPA recently estimated there are 9.2 million lead service lines (LSLs) in the nations drinking water infrastructure based on information reported by Through new construction inspections, inspectors (PHMSA and State Partners) have discovered issues requiring immediate remediation by the operator prior to the pipeline being placed in service. The full width of the excavated trench shall be filled; formwork other than that required for temporary constructions joints will not be permitted. Pipes and fittings shall be protected in storage to the approval of the Engineer by means of an impermeable membrane which shall cover the pipes and fittings and separate them from the ground on which they are supported. In the case of injection moulded fittings the manufacturer shall issue a certificate confirming compliance with ISO 4427 and providing details of the type testing undertaken by an independent third party in accordance with sections. Step couplings used in force mains with flexible pipes shall be provided with a restraint system where necessary to prevent longitudinal movement between the flexible pipe and the coupling. Any silting up of the watercourses arising from the Contractors failure to comply with this Clause shall be remedied at his expense whether within the Site or not. WebINTRODUCTION 2. Where a pipeline or service connection to be abandoned connects into a manhole or chamber to be retained, the connection shall be plugged at the chamber wall and the associated channel in the benching of the manhole or chamber shall be cleaned and filled with concrete Grade 20 SRC. The Contractor shall provide the Engineer or his nominated representative drawings and a photocopy of each schedule correctly and neatly modified in red ink to truly represent the Works constructed. Stainless steel backing rings shall be inserted between the bolt head / nut and the GRP flange to spread the load. The frame shall be made from aluminium alloy complying with BS 1474 Grades 6063-T6 or 6082-T6. 8. Hose pipes for fire fighting shall be in accordance with Section 23. 6. 3. (e) When the trench width measured 300mm above the crown of the pipe exceeds the maximum allowable shown on the drawings for granular surround the Contractor shall proceed as Clause 4.3.2 of this Section. (c) provided with a free flow of air around the pipe. 1. 1. The valve body shall be provided with suitable lifting lugs. 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. 1. G gradient, g acceleration due to gravity 9.81 m/s2, H height of ground surface above pipe m Relay service number for persons who are deaf or hearing-impaired is 800-654-5988. Pipelines shall be tested in accordance with Subpart 4.5. 10. Individual Record Sheets shall be prepared for each length of sewer, TSE pipeline, rising main and overflow pipe, each manhole and house and gully connection, and shall be submitted to the Engineer or his nominated representative for approval after which they shall become the property of the Employer. The CCTV Survey shall be carried out by an approved specialist subcontractor designated in the Project Specification. Natural Gas Regulation Archives. Where a manufacturer requires greater thickness of special bedding below, around and over the pipes than those specified they shall be deemed to have been allowed for in the rates for bedding. (b) The displacement between the fused pipes must not exceed 10% of the pipe wall thickness. 2. 3. The Contractor shall not make any deviation from the specified lines or grade of the tunnel without written approval from the Engineer. Flange adaptors and flexible couplings shall: 2. (a) the places where explosives are to be used, (c) measures to be taken to contain the products of blasting, (e) posting of warning notices, yellow blasting flags and sentries; and audible warning, if applicable, (f) actions to be taken in the event of any unusual occurrence or accident, (g) any other safety aspects relating to the use of explosives, (h) any special instructions concerning transport. PUC Public Input Hearings. They shall be designed to be drop tight in either direction at maximum differential pressure. MB bending moment at point B Nm 10. 4. Extension spindles, headstocks and foot brackets shall be provided where specified. Unless otherwise stated Cast iron valves, penstocks and appurtenances shall be prepared and painted in accordance with part 8 of this Section. 1. (d) if required, additional temporary control points may be established as follows: (i) observations for additional temporary control points shall consist of at least two. All anchor bolts shall be stainless steel. (b) The nominal internal diameter in millimetres. WATER 11. Barrel impermeability, straightness, crushing strength and bending moment resistance and chemical resistances tests shall be carried out in accordance with BS EN 295 at the frequency designated for the crushing strength test. MVP opponents The interior face of manholes and access shafts shall be prefabricated GRP liners at least 6 mm thick permanent lining. (a) Pipes up to and including 250 mm in diameter: First lift of backfill less than or equal to 1/2 pipe diameter. The UTC regulates the rates and services of telecommunications companies, investor-owned electric utilities, natural gas and water companies, garbage-collection haulers, household-goods movers and charter-bus companies, commercial ferries, marine pilotage, pipeline companies, and a low-level radioactive waste repository. 5. k linear measure of bore roughness for the Colebrook-White formula m, KL1 minor loss coefficient The covers shall be designed to carry a uniformly distributed load of 7.5 kN/m2, and deflection under this loading shall not exceed one percent of the span. The test shall be carried out by an approved laboratory, experienced in undertaking the test. (b) prestressed non-pressure concrete pipes, BS 5911. The boxout shall be provided with a grout hole and, at the top of the central annular recess a vent hole. All fasteners shall be stainless steel. Costain Group on Twitter: "New water commissioning technique wg vertical design load pressure at top of pipe due to soil dead loads kPa 4. Rising stem valves shall also incorporate a combined yoke. Gaskets and lubricants shall be made from materials that are compatible with the plastic material and with each other when used together. 12. Torn or damaged sleeving which is considered by the Engineer as not repairable by this method shall be replaced by the Contractor. No section showing signs of leakage will be accepted. (ii) Time weighted average providing 10 minutes of exposure at short term exposure limit, or ceiling value. 4. The following shall apply to spindles : 8. Bodies shall be of high carbon cast iron or nickel iron having 1 % to 1.5 % nickel content. WebContact Information. When joints are not properly made, pipes shall be adjusted, or removed and rejointed as necessary to ensure proper jointing. Pipe bedding shall be provided as shown on the Drawings or stated in the Contractors approved methods statement. 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. The inner vertical arm shall be shorter to allow the chequer plate to sit the inner arm, while allowing the chequer plate cover to be flush with adjacent floor finishes. The rubber ring shall be placed in the groove on the socket or spigot ring. 2. Selected fill material for trench backfill under paved areas, shall be suitable material selected from excavated materials meeting the following requirements: 4. Bolt length shall be such that after the joints are made up, the bolts shall protrude through the nut, but not more than 12 mm. If the interim report after 75 days is satisfactory the Contractor may request the Engineers approval to use of the material prior to completion of the 100 day acid test. It may be in one piece or attached as two stub ends on opposite sides of the disc. Valves shall close clockwise. A heavy grease seal is to be formed between the cover and frame to prevent the ingress of sand. 1. The material shall be free from sharped edged stones or other material which may cause damage to the permanent Works. (vi) Pipes shall be provided with an outer layer formed of a mortar of resin and sand aggregates with no glass reinforcement. 8. WebAll engineering services systems are to be thoroughly commissioned and tested to prove that they are capable of achieving the specified performance, to prove the correct and stable operation of all control systems and are safe to operate and maintain. Port areas of valves sizes greater than 100 mm shall be at least 75 % of full pipe area. The Engineer will without unreasonable delay inspect the said trench formation, unless he considers it unnecessary and advises the Contractor accordingly. If applicable, additives necessary to impart specific properties to the resin may be used, subject to the approval of the Engineer. 3. The date and time of the hearing at which you wish to testify. The new area code, 564, will overlay the existing 206 area code. The maximum particles size of the sand aggregate shall not exceed the lesser of 1/5 the total wall thickness of the pipe or fitting, or 2.5mm. 4. 3. The Type Test Report shall include a copy of the raw material manufacturer's "Certificate of Quality Control Testing" covering each batch of raw material used for manufacturing pipes produced under this specification. 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. If you can't find what you're looking for here, please contact the PA Public Utility Commission. All materials to be used in contact with sewage or its atmosphere must be shown to withstand corrosion and in the absence of satisfactory evidence of equivalent testing results will be required to pass successfully the 100 day acid test as detailed in this Specification. (i) The inner lining layer shall comprise a minimum 2.0mm thick rich vinyl ester layer suitably reinforced with C glass veil with a glass content not exceeding 10% by weight. (iv) at least two rounds of vertical angles (on two faces) shall be observed. Ty main pipe wall thickness mm Manuals must be specific to the products supplied herein and the application and operating conditions in Qatar. 1 US dry pint 550.610 cm3 (f) compaction shall be carried out with approved mechanical vibrators. Individuals will testify in the order in which they pre-register. They shall incorporate adjustable wedges or swivelling cams and actuating pegs manufactured from a non-corrodible material. HOME| The Contractor shall survey and prepare individual plans for each plot at a scale of 1:500 (or such other scale as may be agreed by the Engineers Representative). The pipe manufacturer shall provide full assistance and co-operation for any inspection, when required by the Engineer or by an inspector appointed by the Engineer. Structural Layer. DIN 16966-1 type PN16. 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. The Contractor shall complete standard test record sheets as provided by the Engineer. This Part includes general requirements basic to this Section and common to its Parts. The main valve shall be a hydraulically operated, diaphragm-actuated, globe or angle pattern valve. The methods statement shall be submitted to the Engineer for approval not less than 30 days before the start of dewatering operations. Adjust moisture content as necessary to obtain specified compaction. 2. If you need assistance pre-registering to testify, you may have someone register for you, but they will need to provide all the information listed above. U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration The Contractor shall arrange for the refilling and reinstatement of trial holes to be carried out immediately after the required information is obtained. 7. Pressure Setting procedure for pressure switches:The pressure switches can be manually adjusted & set to the requiredpressure with the help of the pressure scale & the adjustment screwin the switches.