BS 7350:1990
Current
The latest, up-to-date edition.
Specification for double regulating globe valves and flow measurement devices for heating and chilled water systems
Hardcopy , PDF
English
28-10-1990
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Committees responsible
Foreword
Specification
1. Scope
2. Definitions
3. Types
4. Ranges of nominal sizes
5. Ranges of nominal pressure
6. Pressure/temperature ratings
7. Dimensions and tolerances
8. Design
9. Materials
10. Hydraulic performance
11. Type testing
12. Production testing
13. Marking
14. Preparation for storage
15. Manufacturer's certificate
Appendices
A. Information to be supplied by the purchaser
B. Typical flow measurement device constructions
C. Flow coefficient method of test
Tables
1. Ranges of nominal presure (PN)
2. Pressure/temperature ratings: flanged and threaded
ends
3. Pressure/temperature ratings: compression ends
4. Face-to-face dimensions of flanged double regulating
globe valves and flow-measurement devices
5. Hole diameters or slot widths of pressure tapping
point or adaptor
6. Materials for the manufacture of type 1 flow
measurement devices
7. Range of system flow rates
8. Flow coefficient (Kv) for double regulating globe
valves
9. Flow coefficient (kvs) for flow measurement devices
10. Body material designation
Figures
1. Type 1 flow measurement devices
2. Type 2 flow measurement devices
3. Type 3 flow measurement devices
4. Type 4 flow measurement devices
5. Typical test system
6. Test section with test piece fitted
7. Test section without test piece fitted
8. Test section for flow measurement device only
Specifies pressure/temperature rating, dimensions, some aspects of design, materials, performance requirements, testing (both type and production testing), marking, preparation for storage and transportation, and installation and operating instructions of double regulating globe valves and flow measurement devices used for heating and chilled water systems.
| Committee |
PSE/18/2
|
| DevelopmentNote |
Supersedes 89/76940 DC and 91/72747 DC (09/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies pressure/temperature ratings, dimensions, some aspects of design, materials, performance requirements, testing (both type and production testing), marking and preparation for storage and transportation of double regulating globe valves and flow measurement devices used for heating and chilled water systems.
This standard covers double regulating globe valves and flow measurement devices in the form of fixed and variable orifice valves and as individual orifice fittings made from steel, cast iron and copper alloys with flanged, threaded and compression ends, or for mounting between flanges, in a range of sizes and nominal pressure designations.
NOTE 1 The information to be supplied by the purchaser at the time of enquiry and/or order is given in Appendix A.
NOTE 2 This standard does not cover methods of installation.
NOTE 3 The titles of the publications referred to in this standard are listed on pages 18 and 19.
| BS 3692:1967 | Specification for ISO metric precision hexagon bolts, screws and nuts. Metric units |
| BS 6683:1985 | Guide to installation and use of valves |
| BS 4168:1967 | Specification for hexagon socket screws and wrench keys. Metric series |
| BS 4504-3.1:1989 | Circular flanges for pipes, valves and fittings (PN designated). Steel, cast iron and copper alloy flanges Specification for steel flanges |
| BS 2871-1:1971 | Specification for copper and copper alloys. Tubes Copper tubes for water, gas and sanitation |
| BS 6880-2:1988 | Code of practice for low temperature hot water heating systems of output greater than 45 kW Selection of equipment |
| BS 4439:1969 | Specification for screwed studs for general purposes. Metric series |
| BS 6880-1:1988 | Code of practice for low temperature hot water heating systems of output greater than 45 kW Fundamental and design considerations |
| ISO 6708:1995 | Pipework components Definition and selection of DN (nominal size) |
| BS 4190:1967 | Specification for ISO metric black hexagon bolts, screws and nuts |
| BS 1387:1985 | Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads |
| BS 5154:1989 | Specification for copper alloy globe, globe stop and check, check and gate valves |
| BS 1042-1:1964 | Measurement of fluid flow in pipes. Orifice plates, nozzles and venturi tubes. |
| BS 864:1953 | Capillary and compression tube fittings of copper and copper alloy for use with copper tube complying with BS 659 and BS 1386. |
| BS 5793-2.3(1984) : 1984 AMD 7818 | INDUSTRIAL PROCESS CONTROL VALVES - FLOW CAPACITY - METHODS OF TEST |
| BS 4504-3.2(1989) : 1989 | CIRCULAR FLANGES FOR PIPES, VALVES & FITTINGS (PN DESIGNATED) - STEEL, CAST IRON & COPPER ALLOY FLANGES - SPECIFICATION FOR CAST IRON FLANGES |
| BS 5152:1974 | Specification for cast iron globe and globe stop and check valves for general purposes |
| BS 3600:1976 | Specification for dimensions and masses per unit length of welded and seamless steel pipes and tubes for pressure purposes |
| BS 4504-3.3:1989 | Circular flanges for pipes, valves and fittings (PN designated) Specification for copper alloy and composite flanges |
| BS 6755-1:1986 | Testing of valves Specification for production pressure testing requirements |
| BS 5418:1979 | Specification for marking of general purpose industrial valves |
| BS 6880-3:1988 | Code of practice for low temperature hot water heating systems of output greater than 45 kW Installation, commissioning and maintenance |
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