ISO 15649 PDF
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Underground lines should be provided with a means lor emptying. InstalJation in trenches 8.
For undated relerences, Ihe latest edition 01 the normative documenl relerred to appJies. The piping manufacturer shall! The Inlormation in this annex supports Ihe requiremenls 01 4. Valves should be approachable Irom two sides with easy. Tankage areas Additional considerations A. A single ladder up 10 an emergency shut-off valve is not acceptable. The spaelngd any firebreak wa! Piping not protected by a pressure. Where an alternative is offered, the vendor should idenlify any variations from this Internalional Slandard and provide delails.
Valves in ground-Ievel pipe tracks should be suitably grouped. Such joints should incorporate lire. Wire ropes and chains should not be used for lifting. Methods 01 protection may include: The io shall establish Ihe requirements lor design, con.
BS ISO – Petroleum and natural gas industries. Piping
This may often be achieved by substituting the set Adequate allowance should be made lor siting sleam headers and Irapping slalions at the planl layoul slage. Allowance lor insulation boxes should be made.
Dynamic amplification may be ignored.
Consideration should be given as to whether glass-reinlorced-plastics piping in accordance with should be specilied. Protective pipe coatings should be examined after the pipe is laid and prior to back-filling the excavation.
BS ISO 15649:2001
These should also be employed for sections inslalled by thrusl boring or similar means. Fabrication, installation and operation.
The work 01 preparing International Standards is normally carried isoo through ISO technical committees. Such c1osures, nozzles or chambers should be designed in accordance with the rules set out in this International Standard. The informalion in Ihis annex A supports Ihe requiremenls 01 4.
Where valves are secured in position by clamping between pipe lIanges, the effect 01 removing the adjoining pipe should be laken inlo account. Where lines need to be drained completely, the piping should be sloped and be provided with drainage points. Pipes in sleeves should be sealed to the sleeve where A.
Pipes entering or 1eaving pipe racks should do so at common intermediate elevations, either above or below the main rack levels A.
ISO 石油及天然气工业-管路 – MBA智库文档
The bore of the piping should be clean 10 the required standard belore laying in Ihe trench. Depth of installatlon 8. Flare and reliel line baltery limil valves should be installed with Iheir stems horizontal.
Draining and venting 4. Annexes A layout 01 piping.