Carbon steel pipe coupons


carbon steel pipe coupons

of the property and the public. LPG Pumps shall be provided with a high point vent to safe height minimum 3 meters above the pump in newegg asus monitor promo code case of no pump shed.5 meters above the pump house roof top or connected to a cold flare with flame arrestor. 1.3.5 When maximum liquid hydrocarbon temperature during operation is below 65 Deg C, thermal expansion and stresses in the above ground section of pipeline or piping shall be evaluated considering pipe skin temperature of 65 Deg. In case of repair of coated pipe, all damaged coating shall be removed and new coating shall be applied. 3.7.5 After Completion of Test The tested systems shall be depressurised by opening the depressurising valve in the test rig. Shall be of a material compatible with the piping material. For LPG installation, flange connection ratings shall match with the design pressure of the pipeline (on high pressure side) and in no case shall be less than 300 series rating (low pressure side) conforming to ansi.5 or equivalent. Over-pressuring due to static head shall be avoided.

1.6.5 At critical locations like tank farm area, pump house, manifold or metering area, intermediate pigging station etc., Close Circuit Television (cctv) camera and/ or intrusion alarm system having scada facility may be provided. Necessary operational data;. Leak or tapping and break records;.

7.6 Emergency Power Supply Emergency lighting shall be provided for operating areas like generator room, diesel compressor room, PCC or MCC room and control room. These specimens shall be polished and etched for micro-examinations. First aid box- 1 Nos. Technical Upgradation in the field of operation or maintenance. 4.3 Crossing.3.1 As far as possible, pipeline should cross existing facility at right angles. The specified test pressure shall be kept for 1 hour. handling, shipping, storing and cathodic protection requirement. Xi For LPG pipeline facilities, Pipeline installation shall be located upwind of LPG bulk storage facilities. 4.9.2 A gauging pig shall be passed through the pipeline to prove the internal diameter of the entire pipeline. 6.9 Pigging.9.1 The frequency of descaling of pipelines transporting crude petroleum and petroleum products shall be as under:. Prefabricated pipe spools shall be cleaned and applied with protective coatings (as required) and preserved prior to installation.


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