standard specification for erection tender - GAIL

1.0 SCOPE
This Specification covers the minimum requirements for design, manufacture and
supply of carbon steel plug valves of size DN 50 mm (2 inch) and above and ANSI
class 150# thru 900# for use in onshore pipeline systems handling non sour
hydrocarbons in liquid phase or gaseous phase including Liquefied Petroleum Gas
(LPG).
This specification does not cover plug valves for sour hydrocarbons (liquid/gas)
service as defined in NACE Standard MR-0l-75.
2.0 REFERENCE DOCUMENTS
2.1 All valves shall be manufactured and supplied in accordance with the American
Petroleum
Institute (API) Specification 6D, Twenty second edition, January 2002 / ISO
14313:1999, Petroleum and Natural Gas Industries – Pipeline Transportation
Systems – Pipeline Valves, with addition and modification as indicated in the
following sections of this specification.
2.2 Reference has also been made in this specification to the latest edition of the
following Codes, Standards and Specifications:
ASME B 31.3 : Process Piping.
ASME B 31.4 : Pipeline Transportation System for Liquid Hydrocarbons
and Other Liquids.
ASME B 31.8 : Gas Transmission and Distribution Piping Systems.
ASME B 16.5 : Pipe Flanges and Flanged Fittings.
ASME B 16.25 : Butt-welding Ends
ASME B 16.34 : Valves -- Flanged, Threaded and Welding Ends.
ASME B 16.47 : Large Diameter Steel Flanges.
API 1104 : Welding Pipelines and Related Facilities.
ASME Sec VIII/IX : Boiler and Pressure Vessel Code.
ASTM A 370 : Test Methods and Definitions for Mechanical Testing of
Steel Products.
ASTM B 733 : Auto catalytic Nickel Phosphorous Coating on Metals.
GAIL (INDIA) LTD
NEW DELHI
SPECIFICATION REV-0
STANDARD SPECIFICATION FOR
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PIPELINE PLUG VALVES S – 04 – 02 – 008
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