BS 5041-2:1987

Foreword
Committees responsible
Specification
Section one. General
1 Scope
2 Definitions
3 Pressure rating
4 Nominal inlet sizes
5 Temperature rating
6 Marking
Section two. Design
7 Materials
8 Valve bodies
9 Valve inlets
10 Valve outlets
11 Bonnets
12 Wedge gates
13 Stems
14 Stem sealing
15 Glands
16 Handwheels and operation
17 Bolting
18 Pressure retention
19 Strap
20 Blank cap and chain
Section three. Production testing requirements and test
               certificate
21 Hydrostatic test requirements
22 Test certificate
Appendices
A Hydrostatic tests methods
B Recommendations for the information to be supplied
    by the purchaser to the manufacturer
Tables
1 Choice of materials for components and parts
2 Bolting for valves

Material and design requirements for copper alloy gate valves for dry rising mains to BS 5306-1.

This Part of BS 5041 specifies requirements for copper alloy gate valves generally complying with BS 5154, suitable for installation as landing valves on dry risers. The valves have screwed or flanged inlets and also delivery hose connections complying with BS 336. The standard covers valves of nominal pressure (PN) designation 15 bar and nominal inlet size DN 65 for flanged ends and 2½ for screwed ends.

NOTE 1. Unless otherwise stated all pressures are gauge pressures expressed in bar: 1 bar = 10⁵ N/m² = 100 kPa.

NOTE 2. Information which the purchaser is recommended to supply to the manufacturer is given in appendix B and does not form part of the specification.

NOTE 3. The titles of the publications referred to in this standard are listed on the inside back cover.