Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: Education: Information about standards:
Stevana Brakusa 2, 11030 Beograd
Main menu

SRPS EN ISO 228-1:2011

Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000)

Jun 28, 2011
Jun 28, 2011

General information

90.93     May 18, 2009

90.00    May 18, 2014



European Norm



From plan 2011



Language in which you want to receive the document.


This part of ISO 228 specifies the requirements for thread form, dimensions, tolerances and designation for
fastening pipe threads, thread sizes 1/16 to 6 inclusive. Both internal and external threads are parallel threads,
intended for the mechanical assembly of the component parts of fittings, cocks and valves, accessories, etc.
These threads are not suitable as jointing threads where a pressure-tight joint is made on the thread. If assemblies
with such threads must be made pressure-tight, this should be effected by compressing two tightening surfaces
outside the threads, and by interposing an appropriate seal.
NOTE 1 For pipe threads where pressure-tight joints are made on the threads, see ISO 7-1.
NOTE 2 ISO 228-2 gives details of methods for verification of fastening thread dimensions and form, and recommended
gauging systems.

Related directives

Directives related to this standard.


Construction products


Pressure equipment


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

Life cycle


SRPS ISO 228-1:2007


SRPS EN ISO 228-1:2011
90.93 Standard confirmed
May 18, 2009

Related project

Adopted from EN ISO 228-1:2003

Adopted from ISO 228-1:2000 IDENTICAL