BS 7074-3:1989
Current
The latest, up-to-date edition.
Application, selection and installation of expansion vessels and ancillary equipment for sealed water systems Code of practice for chilled and condenser systems
Hardcopy , PDF
English
31-07-1989
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Foreword
Committees responsible
Section one. General
1. Scope
2. Definitions
3. Symbols, designations and units
4. Connection of expansion vessel to the system
5. Testing and commissioning
6. Maintenance
7. Workmanship
Section two. Chilled water systems
8. Design considerations
9. Application
10. Ancillary equipment
Section three. Condenser water systems
11. Design considerations
12. Application
13. Ancillary equipment
Appendix
A. Examples of recommended procedure for the
calculation of the size of expansion vessels
Tables
1. Symbols, designations and units
2. Expansion percentages (e) for various flow
temperatures (tf) from 4 deg C initial temperature
Figures
1. System pressure variations: recommended arrangement
2. System pressure variations: neutral point at pump
discharge
3. System pressure variations: neutral point remote
from pump
4. Chilled water system
5. Typical expansion percentage of water mixed with
anti-freezing agent versus temperature
6. Condenser water (heat reclaim) system
Vessels and systems for air conditioning of commercial and industrial premises.
| Committee |
PVE/1
|
| DevelopmentNote |
Supersedes 87/73421 DC (09/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of BS 7074 gives recommendations on the application of expansion vessels complying with BS 4814 having a maximum pressure of 7 bar2) for use in the following two types of system. It includes description, design considerations and application.
Sections 1 and 2 cover chilled water systems.
Sections 1 and 3 cover condenser water systems.
NOTE 1 Condenser water systems are normally associated with the heat reject side of refrigeration plant.
Recommendations are also given on:
- the application and use of ancillary equipment and
- testing, commissioning and maintenance.
NOTE 2 The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 4814:1990 | Specification for expansion vessels using an internal diaphragm, for sealed hot water heating systems |
| BS 4814:1976 | Specification for expansion vessels using an internal diaphragm, for sealed hot water heating systems |
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