ISO. First edition. Petroleum and natural gas industries —. Pipeline transportation systems — Subsea pipeline valves. Industries du pétrole . ISO (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe’s licensing policy, this file may. Dear all, I am looking for this spec, ISO / API 6DSS Petroleum and natural gas industries — Pipeline transportation systems — Subsea pipeline valves.
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The seat test duration shall be as specified in Table Flange faces, weld bevel ends, exposed stems, shafts and sealant injection fittings shall be protected during blast cleaning and shall not be coated. NOTE ISO specifies construction, functional and accidental loads 147233 provides examples of such loads for consideration by the purchaser.
On body or nameplate or both where practicable 10 Ring-joint groove number On valve flange edge 11 SMYS units of valve ends, where applicable On body welding ends 12 Flow direction for check valves only On body 13 Seat sealing direction valves with preferred direction only; see Figure 17 Separate identification plate on valve body 14 Seat test in accordance with Clauses B.
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Sub Sea Valves ABV
Check valves DN NPS 8 and larger shall be shipped with the disc secured blocked open or closed during transport. Documentation shall be provided by the manufacturer in legible, retrievable and reproducible form and shall be free from damage.
Surface porosity and exposed slag are not permitted on or within 45 mm of seating surfaces. The direction of closing shall be clockwise, unless otherwise specified. If specified by the purchaser, the method of closing the ends shall permit the transmission of the full-pressure force acting on the end blanks to the valve body.
Get to Know Us. The minimum design thrust or torque shall be based on the operating mode that requires the greatest value of the thrust or torque. The valve shall then be closed and the test pressure applied to the appropriate end of the valve.
Sub Sea Valves – ABV
The main task of technical committees is to prepare International Standards. Pressure-temperature ratings for PN-rated valves shall be in accordance with the applicable rating table for the appropriate material group in EN This International Standard is not intended to inhibit a contractor from offering, or the company from accepting, alternative engineering solutions for the individual application.
Stems shall also be designed for loads due to internal and external pressures. The manufacturer shall identify which of the following operating modes requires the greatest thrust or torque: If provided, all sealant injection ports shall have a double barrier. The minimum test pressure shall be 1,1 times the pressure rating determined in accordance with 7.
Weld repair of forgings and plates to correct manufacturing defects shall be by agreement. The test torque shall be applied with the obturator blocked for a minimum time of 1 min. Would you like to tell us about a lower price? Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. If you need help with the purchase or have any queries please email enquiries standards.
Care shall be taken to avoid galvanic couples.
BS EN ISO 14723:2009
NOTE 1 Venturi or reduced-bore valves are not suitable for most pigging operations, including intelligent pigging, but can allow the passage of foam pigs. Assembly lubricants for metal-to-metal contact surfaces may be used by agreement.
Amazon Second Chance Pass it on, trade it in, give it a second life. We recommend that you check the website of the publishers of the international document before making a purchase. ISOPipe threads where pressure-tight joints are made on the threads — Part 1: It is the constant aim of BSI to improve the quality of our products and services.
The test procedures for various types of block valves are given in If the material specification or the pipeline design standard requires impact values higher than those shown in Table 8, the higher values shall isl. Gate valves shall have an obturator that moves in a plane perpendicular to the direction of flow. Symbols indicating material of stem and sealing faces of closure members, if different from that of body On nameplate 9 Nominal valve size: East Dane Designer Men’s Fashion.
If sio by the purchaser, valves shall be provided with a pressure cap. NOTE 2 Some pipeline-welding standards can have more stringent requirements for the essential variables of welding.
ISO – Standards Australia
The test pressure shall be applied simultaneously from both valve ends. NOTE The purchaser can specify requirements for the marking of valve components. The protector or cap shall have provisions for venting prior to removal and during fitting.
Figure 11 uso Typical single-plate wafer-type check valve, short pattern www. M-P indicates information supplied by manufacturer when required by purchaser.
The compensating system design shall take into account the likely volume changes prior to deployment. Pressure testing, including pipe pups isp applicable, shall be carried out before coating of the valves. Leakage from the upstream seat shall be monitored via the valve body-cavity vent or drain connection, where provided. Figure 14 — Bolt hole misalignment www. Materials for external components shall be suitable for the subsea environment or 1472 be suitably protected.
Valves of size DN NPS 8 and larger shall be provided with support ribs or legs, unless otherwise agreed. NOTE Io design factor is to allow for thrust or torque increase in service due to infrequent cycling, low-temperature operation and the adverse effect of debris.
The allowable stress values shall be consistent with the selected design code or standard. ISO shall not be held responsible for identifying any or all such patent rights.
If necessary for assembly, a lubricant with a viscosity not exceeding that of SAE 10W motor oil or equivalent may be used.
The manufacturing method shall ensure flange alignment in accordance with 7. Figure 8 — Typical full-opening swing check valve www.