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 marking on the nameplate shall be visually legible.
Free-machining re-sulfurized or similar steels shall not be used for any purpose. Share your thoughts with other customers. The test duration shall be in accordance with Table For duplex stainless steels, the procedure qualification shall include a microstructure examination in accordance with the ASTM E point-count method.
Leakage from the upstream seat shall be monitored via the valve body-cavity vent or drain connection, where provided. In Figure 17, the symbol to the right indicates the bi-directional seat and that to the left indicates the uni-directional seat. Download Now Defense manufacturing is all about project manufacturing and project accounting.
For metal-seated valves, the leakage rate shall not exceed ISO The purchaser should as a minimum provide the partial pressure of H2S, percent chlorides, pH and temperature. Revisions British Standards are updated by amendment or revision.
For dated references, only the edition cited applies. Selection of elastomeric materials for valves intended for hydrocarbon gas service at pressures of PN Class and above shall consider the effect of explosive decompression.
Amazon Advertising Find, attract, and engage customers. See and discover other items: Means shall be provided to prevent over-pressure in the actuator or gearbox from stem or bonnet seal leakage. NOTE 2 Some design codes or standards require a consistent and specific application of requirements for fabrication and testing, including NDE.
For valves without a body cavity or drain connection, izo downstream-seated valves, seat leakage shall be monitored at the respective downstream end of the valve the valve end downstream of the pressurized test fluid.
BS EN ISO 14723:2009
ISOPipe threads where pressure-tight joints are made on the threads — Part 1: Be the first to review this item Would you like to tell us about a lower price? A set of three weld-metal impact specimens shall be taken from the WM at the location shown in Figure Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services.
The second barrier shall be either a check 147723 with a pressure-retaining cap or an isolation valve. Plug, ball and reverse-acting through-conduit gate valves shall be shipped in the fully open position, unless fitted with a fail-to-close actuator. Wrenches that are of integral design not loose shall not be longer than twice the face-to-face or end-to-end dimension, unless otherwise agreed.
Test specimens shall be cut from a separate or attached block taken from the same heat in isi final heat-treated condition.
ISO shall not be held responsible for identifying any or all such patent rights. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. NOTE Non-metallic parts can limit maximum pressures and minimum and maximum operating temperatures. Annex A of this International Standard provides guidelines ido assist the purchaser with valve type selection and specification of requirements when ordering valves. The nominal size and face-to-face or end-to-end dimensions shall be stated on the nameplate.
API 6DSS / ISO by ce dee on Prezi
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Steel flanges EN A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. Check valves can also be of the wafer, axial-flow and lift type.
If the purchaser specifies that the functionality for the valve be that of double-isolation-and-bleed DIB-1both seats bi-directional, the test described in Clause B.
I don’t know if an ISO certifcate exists The specimens shall be oriented with the notch perpendicular to the surface of the material.
Figure 9 — Typical single-plate wafer-type check valve, long pattern www. Assembly lubricants for metal-to-metal contact surfaces may be used by agreement. Except for material for bolting, impact test results for full-size specimens of carbon and low-alloy steels shall meet the requirements of Table 8. The microstructure shall be free from inter-metallic phases and precipitates.
Pressure-temperature ratings for class-rated valves shall be in accordance with the applicable rating table for the appropriate material group in ASME B NOTE Regulatory requirements can specify special design, manufacturing and certification of lifting points. The test fluid shall be water or inert gas, as specified.