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Pipe lracks should nol encircle equipment. Flare and reliel line baltery limil valves should be installed with Iheir stems horizontal. Such joints should incorporate lire.
ISO 石油及天然气工业-管路 – MBA智库文档
The piping manufacturer shall! Piping not protected by a pressure. The Inlormation in this annex supports Ihe requiremenls 01 4. Methods 01 protection may include: Wire ropes and chains should not be used for 1549.
Care should be taken to select a method which will bond adequately with the coating 01 the main pipe body and is appropriate for the installation conditions.
Such c1osures, nozzles or chambers should be designed in accordance with the rules set out in this International Standard.
The 5ite owner should be required to lurnish details 01 all other actual or planned buried services including cables and all roadways or other surface loads within iiso construction working width or 20ne 01 the proposed pipe. Pipes entering or 1eaving 156649 racks should do so at common intermediate elevations, either above or below the main rack levels A.
Due care should be exercised in selecting materials in order to prevent brittle-type Iracture where necessary; where lor specific reasons brittle material has to be used.
Examples 01 lines requiring complete drainage are: The work 01 preparing International Standards is normally carried out through ISO technical committees. Underground lines should be provided with a means lor emptying.
Fabrication, installation and operation. The izo any firebreak wa! Allowance lor insulation boxes should be made. Dynamic amplification may be ignored. Draining and venting 4. Typical slopes lor sloped lines are as lollows: Overhead racks may conlain more Ihan one level 01 plping, subject 10 the owner’s approval.
Where an alternative is offered, the vendor should idenlify any variations from this Internalional Slandard and provide delails. Pipes in sleeves should be sealed to the sleeve where A.
Where valves are secured in position by clamping between pipe lIanges, the effect 01 removing the adjoining pipe should be laken inlo account. AII buried pipe5 should be identilied on as.
Tankage areas Additional considerations A. Annexes A layout 01 piping. Adequate allowance should be made lor siting sleam headers and Irapping slalions at the planl layoul slage.
Pipe marklng and recording 8. The bore of the piping should be clean 10 the required standard belore laying in Ihe trench. Valves should be approachable Irom two sides with easy. Where lines need to be drained completely, the piping should be sloped and be provided 156649 drainage points.
A single ladder up 10 an emergency shut-off valve is not acceptable. The informalion in Ihis annex A supports Ihe requiremenls 01 4. This may not be easy to demonstrate il substitute standards are selected from a variety 01 origins. In all areas handling flammable fluid, such Irenches should be divided by lirebreaks into sections about 10m in length. InstalJation in trenches 8. Sufficient clearance should be provided for satisfactory operation 01 lever valves.
Depth of installatlon 8. Protective pipe coatings should be examined after jso pipe is laid and prior to back-filling the excavation.
Additiona1 earth cover e. The owner shall establish Ihe requirements lor design, con. Adequale means should be provided lor removing Ihe test waler from the pipe and trench.
Valves in ground-Ievel pipe tracks should be suitably grouped.
BS ISO 15649:2001
For undated relerences, Ihe latest edition 01 the normative documenl relerred to appJies. Lines passing through bunds should be protected to minimize corrosion A. Each member body interested in a subject lor which a technical committee has been established has the right to be represented on that committee.