BS 6675:1986

This standard BS 6675:1986 Specification for servicing valves (copper alloy) for water services is classified in these ICS categories:

• 91.140.60 Water supply systems

This British Standard specifies requirements for materials, design, construction, workmanship and testing of copper alloy servicing valves for water services, suitable for working pressures and temperatures from 16 bar at up to and including 30 °C to 5 bar at a maximum of 120 °C. Table 3 also gives interpolated values.

The range of nominal sizes is 10, 12, 15 and 22 relating to the nominal outside diameter of copper tube in accordance with BS 2871 : Part 1.

This British Standard applies to the following patterns of servicing valves:

1. spherical plug;
2. tapered plug;
3. screw-down.

NOTE 1. For information to be supplied by the purchaser when ordering, see appendix B.

NOTE 2. The titles of the publications referred to in this standard are listed on page 9.

Three patterns of servicing valve: spherical plug, tapered plug and screw-down, of nominal sizes 10, 12, 15 and 22, suitable for working pressures and temperatures from 16 bar at up to and including 30°C to 5 bar at a maximum of 120°C. The purpose of the valve is to isolate water supplies to individual sanitary appliances so that those appliances can be maintained or serviced.