Dear Customer
Our Customer Service will be available again as of 2 January 2025.
Please note that new registrations and requests to be processed manually will only be processed from this point onwards.
You can of course place orders and receive downloads online at any time.
We wish you happy holidays, a peaceful time and a healthy New Year!
Your DIN Media
Standard [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This part of ISO 4126 specifies general requirements for safety valves irrespective of the fluid for which they are designed. It is applicable to safety valves having a flow diameter of 4 mm and above which are for use at set pressures of 0,1 bar gauge and above. No limitation is placed on temperature. This is a product standard and is not applicable to applications of safety valves. Amendment 1 to International Standard ISO 4126-1:2013 has been prepared by Technical Committee ISO/TC 185 "Safety devices for protection against excessive pressure". It was submitted directly to the ISO Council in accordance with the Directives for the technical work of ISO, Part 1, Clause 2.10.3.
This document replaces DIN EN ISO 4126-1:2013-12 .
This document has been modified by: DIN EN ISO 4126-1/A2:2019-08