Fire hydrant systems equipment Specification for landing valves for dry risers

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-03-1987

Publisher

British Standards Institution

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.

Committee	FSH/17
DevelopmentNote	Supersedes BS 5041-2(1976) (10/2001) Supersedes 86/35863 DC. (07/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType	Standard
Pages	14
PublisherName	British Standards Institution
Status	Current

BS 1769:1951	Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series
BS 4439:1969	Specification for screwed studs for general purposes. Metric series
BS 3763:1976	The International System of units (SI)
BS 5041-3:1975	Fire hydrant systems equipment Specification for inlet breechings for dry riser inlets
BS 5041-1:1987	Fire hydrant systems equipment Specification for landing valves for wet risers
BS 2789:1985	Specification for spheroidal graphite or nodular graphite cast iron
BS 5041-5:1974	Fire hydrant systems equipment Specification for boxes for foam inlets and dry riser inlets
BS 2693-1:1956	Specification for screwed studs General purpose studs
BS 5306-1:1976	Fire extinguishing installations and equipment on premises Hydrant systems, hose reels and foam inlets
BS 1490:1988	Specification for aluminium and aluminium alloy ingots and castings for general engineering purposes
BS 5041-4:1975	Fire hydrant systems equipment Specification for boxes for landing valves for dry risers
BS 3692:2001	ISO metric precision hexagon bolts, screws and nuts. Specification
BS 4504-2:1974	Circular flanges for pipes, valves and fittings (PN designated) Copper alloy and composite flanges
BS 6681:1986	Specification for malleable cast iron

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BS 5041-2:1987

Fire hydrant systems equipment Specification for landing valves for dry risers

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

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