Bsi bs en 00560 1995 (1998)

www bzfxw com BRITISH STANDARD BS EN 560 1995 Gas welding equipment — Hose connections for welding, cutting and allied processes The European Standard EN 560 1994 has the status of a British Standard[.]

BRITISH STANDARD BS EN

560:1995

Gas welding

equipment —

Hose connections for

welding, cutting and

allied processes

The European Standard EN 560:1994 has the status of a

British Standard

UDC 621.643.418/419:621.643.3.02:621.791

This British Standard, having

been prepared under the

direction of the Engineering

Sector Board, was published

under the authority of the

Standards Board and comes

into effect on

15 July 1995

© BSI 12-1998

The following BSI references

relate to the work on this

standard:

Committee reference WEE/18

Draft for comment 91/82472 DC

ISBN 0 580 24221 8

Committees responsible for this British Standard

The preparation of this British Standard was entrusted to Technical Committee WEE/18, Gas welding and cutting appliances, upon which the following bodies were represented:

British Compressed Gases Association British Railways Board

Consumer Policy Committee of BSI Department of Trade and Industry (Consumer Safety Unit, CA Division) Health and Safety Executive

LP Gas Association Railway Industry Association South Bank University Welding Manufacturers’ Association (BEAMA Ltd.)

Amendments issued since publication

BS EN 560:1995

Contents

Page

ii © BSI 12-1998

National foreword

This British Standard has been prepared under the direction of the Engineering

Sector Board and is the English language version of EN 560 Gas welding

equipment — Hose connections for equipment for welding, cutting and allied processes It partially supersedes BS 1389:1986 which will be withdrawn on

publication of BS EN 1256

EN 560 was produced as a result of international discussion in which the UK took

an active part

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Cross-references

Publication referred to Corresponding British Standard

equipment used in gas welding, cutting and allied processes

coupling using “O”-ring sealing and “G” series fastening threads

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 560

September 1994

UDC 621.643.418/419:621.643.3.02:621.791

Descriptors: Welding equipment, welding, cutting, hoses, pipe fittings, dimensions, coupling nipples, pipe sockets, nuts, fasteners

Gas welding equipment — Hose connections for equipment

for welding, cutting and allied processes

Matériel de soudage aux gaz — Raccords pour

tuyaux souples pour appareils de soudage,

coupage et techniques connexes

Gasschweißgeräte Schlauchanschlüsse für Geräte und Anlagen für Schweißen,

Schneiden und Verwandte Verfahren

This European Standard was approved by CEN on 1994-09-06 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1994 Copyright reserved to CEN members

Ref No EN 560:1994 E

© BSI 12-1998 2

Foreword

This European Standard has been prepared by the

Technical Committee CEN/TC 121, Welding, of

which the secretariat is held by DS

It is based on ISO 3253:1975, Hose connections for

equipment for welding, cutting and related

processes.

CEN/TC 121 decided to submit the final draft for

formal vote by its resolution 183/1993 The result

was positive

This European Standard shall be given the status of

a national standard, either by publication of an

identical text or by endorsement, a the latest by

March 1995, and conflicting national standards

shall be withdrawn at the latest by March 1995

According to the CEN/CENELEC Internal

Regulations, the following countries are bound to

implement this European Standard: Austria,

Belgium, Denmark, Finland, France, Germany,

Greece, Iceland, Ireland, Italy, Luxembourg,

Netherlands, Norway, Portugal, Spain, Sweden,

Switzerland, United Kingdom

Contents

Page

Annex A (normative) Special national

EN 560:1994

1 Scope

This standard lays down the dimensions and

specifies the characteristics of the constituent parts

of hose connections for welding, cutting and allied

processes, for example for pressure regulators

according to EN 585 and blowpipes

2 Normative references

This European Standard incorporates by dated or

undated reference, provisions from other

publications These normative references are cited

at the appropriate places in the text and the

publications are listed hereafter For dated

references, subsequent amendments to or revisions

of any of these publications apply to this European

Standard only when incorporated in it by

amendment or revision For undated references the

latest edition of the publication referred to applies

EN 585, Gas welding equipment — Pressure

regulators for gas cylinders used in welding, cutting

and allied processes up to 200 bar.

EN 29539, Materials for equipment used in gas

welding, cutting and allied processes.

ISO 228-1:1982, Pipe threads where pressure-tight

joints are not made on the threads —

Part 1: Designation, dimensions and tolerances.

3 General

The gas pipe threads shall be in accordance with the

requirements of ISO 228-1 All other dimensions are

given in millimetres

The joint is made with a bull nose and cone seal

(see Figure 1)

4 Material

The material shall conform to EN 29539

5 Dimensions

5.1 General

The dimensions of threaded union, union nut and

hose sleeve shall be as specified in 5.2, 5.3 and 5.4.

5.2 Threaded union

Table 1 — Dimensions of threaded union

Figure 1 — Hose connection

Figure 2 — Threaded union

min. Js 15 max.

a Datum diameter (nominal diameter of contact).

b Effective length of thread.

All values are given in millimetres except those of

specified in ISO 228-1

Tolerances for external thread according to class A

The dimensions not given are left to the discretion of

the manufacturer

Type of thread to be used:

— right-hand for oxygen and non-combustible

gases;

— left-hand for combustible gases

5.3 Union nut

Table 2 — Dimensions of union nut

All values are given in millimetres except those of

specified in ISO 228-1

The dimensions not given are left to the discretion of the manufacturer

Type of thread to be used:

— right-hand for oxygen and non-combustible gases;

— left-hand for combustible gases

5.4 Hose sleeve

All values are given in millimetres except those which are thread specified in ISO 228-1

The dimensions not given and the profile of the part

to be engaged in the hose are left to the discretion of the manufacturer

ensure maximum flow capacity To ensure correct seating between the hose sleeve and the threaded

As the profile of the hose sleeve is left to the manufacturer’s discretion, the wall between the bore and the smallest diameter of the profile shall have adequate strength

However, the profile and the dimensions should be chosen so as to permit the burst pressure of the hose

to be reached when the hose is fixed by a suitable clamp

Figure 3 — Union nut

min. Js15 H12 h14 h14 h11

EN 560:1994

Table 3 — Dimensions of hose sleeve

Figure 4 — Hose sleeve

Internal diameter of hosea Thread h14 a2 h14 b3 min.c2 Db h12 d5 h12 d6 h12 d8 h14 e h14 R

4 5

5 6,3 8

6,3 8 10

8 10

12,5

16

20

a These values are given as a guide To every hose diameter correspond the appropriate dimensions of the part to be engaged in the hose.

b Datum diameter (nominal diameter of contact).

Annex A (normative)

Special national conditions

Special national condition: National characteristic

or practice that cannot be changed even over a long

period, e.g climatic conditions, electrical earthing

conditions If it affects harmonization, it forms part

of the European Standard or Harmonized

Document

For countries in which the relevant special national conditions apply, these provisions are normative, for other countries, they are informative

Table 1 — Dimensions of threaded unions

Table 2 — Dimensions of union nut

Table 3 — Dimensions of hose sleeve

Clause Special national condition

France

b

min.

mm

b1

Js 15

mm

d2

max

mm

αα

degree

a Datum diameter (nominal diameter of contact).

b Effective length of thread.

min.

mm

c1

Js 15

mm

d3 H12

mm

d4 h14

mm

h h14

mm

s h11

mm

Internal diameter of

hosea Thread h14 a2

mm

b3 h14

mm

c2

min.

mm

Db

mm h12 d5

mm

d6 h12

mm

d8 h12

mm

e h14

mm

R h14

mm

10

12,5

a These values are given as a guide To every hose diameter correspond the appropriate dimensions of the part to be engaged in the

hose.

b Datum diameter (nominal diameter of contact).

BS EN 560:1995

© BSI 12-1998

List of references

See national foreword

389 Chiswick High Road

London

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