BS 5158:1989

This standard BS 5158:1989 Specification for cast iron plug valves is classified in these ICS categories:

• 23.060.20 Ball and plug valves

This British Standard specifies the requirements for valve seat and body pressure/temperature ratings and for the design, including materials, dimensions, operation, performance, testing and marking of lubricated, and soft seated and lined cast iron plug valves having anti-static requirements.

It applies to short, regular and venturi pattern valves. The range of valves covered by this standard is given in table 1 (see also clause 4).

NOTE 1. The information to be supplied by the purchaser at the time of the enquiry and/or order is given in appendix A.

NOTE 2. The titles of the publications referred to in this standard are listed on the inside back cover.

Pressure/temperature ratings, materials, design, dimensions, operation, performance, testing and marking of lubricated and soft seated and lined valves having anti-static requirements. Short, regular and venturi pattern valves are covered in sizes up to DN 600 with pressure designations PN10, PN16 and PN25, also Class designations 125, 150, 250 and 300.