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immediate downloadReleased: 2004-12-23
BS 5163-2:2004
Valves for waterworks purposes Stem caps for use on isolating valves and associated water control apparatus. Specification
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| Standard number: | BS 5163-2:2004 |
| Pages: | 12 |
| Released: | 2004-12-23 |
| ISBN: | 0 580 44712 X |
| Status: | Standard |
DESCRIPTION
BS 5163-2:2004
This standard BS 5163-2:2004 Valves for waterworks purposes is classified in these ICS categories:
- 23.060.30 Gate valves
Isolating valves and hydrants installed in underground pipelines primarily carrying water intended for human consumption within the United Kingdom are required to be fitted with a stem cap to enable them to be operated by a ring-key and bar or T-shaped key.
The stem cap is fitted to the top of the valve stem to convert the manufacturer’s stem configuration to mate with operating keys.
Two sizes of stem cap are specified, covering respectively, valves from DN 50 through DN 300 and DN 350 through DN 600.
NOTE Stem caps are also commonly used on other waterworks apparatus, e.g. penstocks (specified in BS 7775).
Gives details of stem caps not covered in BS EN 1074.