ISO 15649 PDF

ISO 15649 PDF

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Valves in ground-Ievel pipe tracks should be suitably grouped. The 5ite owner should be required isp lurnish details 01 all other actual or planned buried services including cables and all roadways or other surface loads within the construction working width or 20ne 01 the proposed pipe.

AII buried pipe5 should be identilied on as. Annexes A layout 01 piping. This may often be achieved by substituting the set Wire ropes and chains should not be used for lifting.

BS ISO – Petroleum and natural gas industries. Piping

Pipe marklng and recording 8. Depth of installatlon 1549. This may not be easy to demonstrate il substitute standards are selected from a variety 01 origins. Fabrication, installation and operation. Such c1osures, nozzles or chambers should be designed in accordance with the rules set out in this International Standard. Methods 01 protection may include: Protective pipe coatings should be examined after the pipe is laid and prior to back-filling the excavation.

Pipes entering or 1eaving pipe racks should do so at common intermediate elevations, either above or below the main rack levels A.


These should also be employed for sections inslalled by thrusl boring or similar means. Where lines need to be drained completely, the piping should be sloped and be provided with drainage points.

PD CEN/TR 14549:2004

Such joints should incorporate lire. 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. Dynamic amplification may be ignored. Consideration should be given as to whether glass-reinlorced-plastics piping in accordance with should be specilied. The piping manufacturer shall! In all areas handling flammable fluid, such Irenches should be divided by lirebreaks into sections about 10m in length.

Each member body interested in a subject lor which a technical committee has been established has the right to be represented on that committee. Valves should be approachable Irom two sides with easy. Adequale means should be provided lor removing Ihe test waler from the pipe and trench. Allowance lor insulation boxes should be made.

Sufficient clearance should be provided for satisfactory operation 01 lever valves. Draining and venting 4. Where an alternative is offered, the vendor should idenlify any variations from this Internalional Slandard and provide delails. Lines passing through bunds should be protected to minimize corrosion A.

Tankage areas Additional considerations A. The Inlormation in this annex supports Ihe requiremenls 01 4. For undated relerences, Ihe latest edition 01 the normative documenl relerred to appJies. The owner shall establish Ihe requirements lor design, con. Pipe lracks should nol encircle equipment.


The work 01 preparing International Standards is normally carried out through ISO technical committees. Piping not protected by a pressure. Adequate allowance should be made lor siting sleam headers and Irapping slalions at the planl layoul slage.

The spaelngd any firebreak wa! 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.

A single ladder up 10 an emergency shut-off valve is not acceptable. Additiona1 earth cover e. Attention should be given 10 pipe movement oso by Ihermal changes, A.

The bore of the piping should be clean 10 the required standard belore laying in Ihe trench.

ISO – Petroleum and natural gas industries — Piping

ieo Examples 01 lines requiring complete drainage are: Where valves are secured in position by clamping between pipe lIanges, the effect 01 removing the adjoining pipe should be laken inlo account. Flare and reliel line baltery limil valves should be installed with Iheir stems horizontal.

Pipes in sleeves should be sealed to the sleeve where A. Typical slopes lor sloped lines are as lollows: Overhead racks may conlain more Ihan one level 01 plping, subject 10 the owner’s approval.