ECISS/TC 29/SC 6/WG 2 - Threads
Standardisation of the technical characteristic of threads used for connecting pipes, including the gauging. To prepare prEN 10226-3 and arrange the UAP procedure, for acceptance as EN f ISO 228-1.
Threads
Standardisation of the technical characteristic of threads used for connecting pipes, including the gauging. To prepare prEN 10226-3 and arrange the UAP procedure, for acceptance as EN f ISO 228-1.
General Information
Frequently Asked Questions
ECISS/TC 29/SC 6/WG 2 is a Subcommittee within the European Committee for Standardization (CEN). It is named "Threads" and is responsible for: Standardisation of the technical characteristic of threads used for connecting pipes, including the gauging. To prepare prEN 10226-3 and arrange the UAP procedure, for acceptance as EN f ISO 228-1. This committee has published 1 standards.
ECISS/TC 29/SC 6/WG 2 develops CEN standards. The scope of work includes: Standardisation of the technical characteristic of threads used for connecting pipes, including the gauging. To prepare prEN 10226-3 and arrange the UAP procedure, for acceptance as EN f ISO 228-1. Currently, there are 1 published standards from this subcommittee.
The European Committee for Standardization (CEN) is a public standards organization that brings together the national standardization bodies of 34 European countries. CEN provides a platform for developing European Standards (ENs) and other technical documents in relation to various products, materials, services, and processes, supporting the European Single Market.
A Subcommittee (SC) in CEN operates under a Technical Committee and focuses on a specific subset of the TC's scope. Subcommittees develop standards and technical specifications in their specialized area, reporting to their parent Technical Committee. They may also have working groups for detailed technical work.
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.
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