BS 6283-4:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Safety and control devices for use in hot water systems Specification for drop-tight pressure reducing valves of nominal size up to and including DN 50 for supply pressures up to and including 12 bar
Hardcopy , PDF
31-07-2009
English
28-06-1991
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Committees responsible
Foreword
Specification
Section 1. General
1.1 Scope
1.2 Definitions
1.3 Nominal size
1.4 Marking
Section 2. Materials
2.1 General
2.2 Bodies and associated parts
2.3 Sealing and diaphragm materials
2.4 Spring materials
Section 3. Design and construction
3.1 End connections and flow dimensions
3.2 Guides and moving parts
3.3 Adjustment
3.4 Springs
3.5 Strainer
Section 4. Performance
4.1 Production tests
4.2 Type tests
Appendices
A Information to be supplied by the purchaser
B Production tests
C Torque test
D Drop-tight seating test
E Flow capacity test
F Back pressure test
G Endurance test
Tables
1 Nominal size of valve
2 Flow capacity
3 Torque
Figures
1 Drop-tight seating test rig
2 Endurance test rig
Design, construction and testing of drop tight pressure reducing valves, sometimes known as pressure limiting valves. Does not give recommendations on application or installation of the valves.
| Committee |
B/504
|
| DevelopmentNote |
Supersedes 88/11544 DC and BS 6283-4(1982) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 5412-5:1976 | Specification for the performance of draw-off taps with metal bodies for water services Physio-chemical characteristics: materials, coatings |
| BS 864-5:1990 | Capillary and compression tube fittings of copper and copper alloy Specification for compression fittings for polyethylene pipes with outside diameters to BS 5556 |
| BS 2056:1991 | Specification for stainless steel wire for mechanical springs |
| BS 970-4:1970 | Specification for wrought steels for mechanical and allied engineering purposes Valve steels |
| BS 3075:1976 | Specification for nickel and nickel alloys: wire |
| BS 3457:1973 | Specification for materials for water tap and stopvalve seat washers |
| BS 1726-1:1987 | Coil springs. Guide for the design of helical compression springs |
| BS 4781:1990 | Specification for pressure-sensitive adhesive plastics labels for permanent use |
| BS 5216:1991 | Specification for patented cold drawn steel wire for mechanical springs |
| BS 4504-2:1974 | Circular flanges for pipes, valves and fittings (PN designated) Copper alloy and composite flanges |
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