BS 6283-4:1991

Superseded

View Superseded by

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

Amended by

BS EN 1567:1999

Available format(s)

Hardcopy , PDF

Superseded date

31-07-2009

Language(s)

English

Published date

28-06-1991

Publisher

British Standards Institution

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Status	Superseded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	BS EN 1567 : 2000
Supersedes	BS 6283-4:1982

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