What is BS 1873 - Specifications for steel globe and globe stop and check valves about?
BS 1873 is a series on the specification for steel globe and globe stop and check valves (flanged and butt-welding ends) for the petroleum, petrochemical, and allied industries. A steel globe and globe stop a type of valve used for regulating flow in a pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally spherical body. BS 1873 specifies requirements for cast or forged carbon and alloy steel outside screw and yoke globe and globe stop and check valves, straight pattern, angle pattern and (oblique) Y pattern, with flanged or butt-welding ends in nominal sizes within the range of 15 mm to 400 mm (; into 16 in) and Classes 150 to 2500.
Who is BS 1873 - Specifications for steel globe and globe stop and check valves for?
BS 1873 on the specifications for steel globe and globe stop and check valves is useful for:
- Screw manufacturers
- Yoke globe manufacturers
- Globe stop and check valves manufacturing industries
- Valves manufacturers
- Design engineers
Why should you use BS 1873 - Specifications for steel globe and globe stop and check valves?
Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle. BS 1873 can also be used as a general guide where valves of material composition outside the scope of section three of BS 1873 are required as, for example, for use in highly corrosive services or environments or for low temperatures. BS 1873 can be adapted to apply to valves with needle-type seats in 15 mm (; in) and 20 mm (< in) nominal sizes which will meet all requirements of BS 1873, except that the valve seat bore is reduced, and the needlepoint may be either integral with or loose on the stem.
Valves in accordance with BS 1873. BS 1873 may be supplied for use in piping systems with BS 4504 flanges when specified by the purchaser. When this is the case all the requirements of this British Standard, BS 1873, apply, with the qualifications specified in B.2 to B.7. Using BS 1873 you can specify requirements for cast or forged carbon and alloy steel outside screw and yoke globe and globe stop and check valves with flanged or butt-welding ends.
