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BSI BS EN ISO 15761 Document Information:
Title
Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries
British Standards Institution
Publication Date:
Mar 10, 2003
Scope:
This International Standard specifies the requirements for a series of compact steel gate, globe and check valves for petroleum and natural gas industry applications.
It is applicable to valves of
— nominal sizes DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80 and 100,
— corresponding to nominal pipe sizes NPS 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2 1/2, 3 and 4,
and to pressure designations of Class 150, Class 300, Class 600, Class 800 and Class 1500.
Class 800 is not a listed class designation, but is an intermediate class number widely used for socket welding and threaded end compact valves.
It includes provisions for the following valve characteristics:
— outside screw with rising stems (OS & Y), in sizes 8 ≤ DN ≤ 100 and pressure designations 150 ≤ Class ≤ 1500 including Class 8100;
— inside screw with rising stems (ISRS), in sizes 8 ≤ DN ≤ 65 and pressure designations of Class ≤ 800;
— socket welding or threaded ends, in sizes 8 ≤ DN ≤ 65 and pressure designations of Class 800 and Class 1500;
— flanged or butt-welding ends, in sizes 8 ≤ DN ≤ 100 and pressure designations of 150 ≤ DN ≤ 1500, excluding flanged end Class 800;
— bonnet joint construction — bolted, welded, threaded with seal weld, and union nut for nominal pressure rating Class ≤ 800;
— body seat openings;
— materials, as specified;
— testing and inspection.
This International Standard is applicable to valve end flanges in accordance with ASME B16.5 and valve body ends having tapered pipe threads to ISO 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 ≤ DN ≤ 50 and pressure designations of Class 800 and Class 1500, and to bellows and bellows assembly construction as may be adaptable to gate or globe valves in sizes 8 ≤ DN ≤ 50. It covers bellows stem seal type testing requirements.
Keywords:
- Gate valves
- Check valves
- Screw-down valves
- Steels
- Valves
- Petroleum technology
- Gas technology
- Chemical industry
- Fluid equipment
- Size
- Dimensions
- Performance
- Ratings
- Pressure
- Temperature
- Service pressure
- Design
- Valve components
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