BS 6283-1:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Safety and control devices for use in hot water systems Specification for expansion valves for pressures up to and including 10 bar
Hardcopy , PDF
10-15-2000
English
06-28-1991
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 General
3.2 End connections and flow dimensions
3.3 Valve seat attachment
3.4 Guides and moving parts
3.5 Provision for deposits and drainage
3.6 Adjustment
3.7 Springs
3.8 Easing gear
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 Back pressure test
E Opening and reseating pressure test
F Endurance test
Tables
1 Nominal size of valve
2 Maximum value of dimension X shown in figure 1
3 Torque
Figures
1 Typical arrangement of expansion valve
2 Test arrangement for opening and reseating
pressures
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