BS 2879:1980
Current
The latest, up-to-date edition.
Specification for draining taps (screw-down pattern)
Hardcopy , PDF
English
31-01-1980
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
Cooperating organizations
Specification
Section one. General
1 Scope
2 References
3 Definition
4 Materials
5 Marking
Section two. Design requirements
6 Nominal size
7 Pattern
8 General requirements
9 Seating
10 Washer plate
11 Lockshield
12 Keys
13 Inlet ends
14 Outlet ends
Section three. Materials and dimensions
15 Castings
16 Hot pressings
17 Dimensions
Section four. Test requirements
18 Hydraulic type tests
Tables
1 Dimensions of draining tap bodies
2 Dimensions of draining tap spindle, washer plate,
washer nut and key
3 Dimensions of draining tap gland and lockshield
Figures
1 Screw-down pattern draining tap: typical design
2 Dimensions of draining tap bodies
3 Dimensions of draining tap spindle, washer plate,
washer nut and key
4 Dimensions of draining tap gland and lockshield
Specifies ½ and ¾ nominal size copper alloy bodied taps for draining down hot and cold water installations and heating systems.
| Committee |
B/504
|
| DevelopmentNote |
Supersedes 78/11626 DC and 87/10080 DC (06/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies requirements for copper alloy bodied taps used for draining hot and cold water installations and heating systems. It covers nominal sizes of 1/2 and 3/4 only for use with water:
- up to 70 °C with occasional excursions up to 90 °C max. for period of 1 h (type 1);
- up to a maximum of 120 °C (type 2).
| BS 3643(1963) : LATEST | |
| BS 2874:1969 | Specification for copper and copper alloys. Rods and sections (other than forging stock) |
| BS 93:1951 | Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. |
| BS 2767:1972 | Specification for valves and unions for hot water radiators |
| BS 5412&5413-5(1976) : AMD 4591 | SPECIFICATION FOR THE PERFORMANCE OF DRAW-OFF TAPS WITH METAL BODIES FOR WATER SERVICES - PHYSIO-CHEMICAL CHARACTERISTICS MATERIALS COATINGS |
| BS 903-A26:1969 | Physical testing of rubber Determination of hardness |
| BS 3457:1973 | Specification for materials for water tap and stopvalve seat washers |
| BS 21:1973 | Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads |
| BS 2872:1969 | Specification for copper and copper alloys. Forging stock and forgings |
| BS 4518:1974 | Specification for metric dimensions of toroidal sealing rings (\'O\'-rings) and their housings |
| BS 864-2:1971 | Capillary and compression tube fittings of copper and copper alloy. Metric units |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.