BVAA’s Technical Hot Spot
ISO 5209:1977 General purpose industrial valves - Marking 5 Year Systematic Review
What is it?:
This International Standard specifies mandatory and optional markings of general purpose industrial valves and states the manner of applying the markings, i.e. on the body, on a flange, or on an identification plate..
Why Is it Important?:
It applies to valves manufactured to international valve product standards. It has never been revised following its initial publication and is now a long way out of date compared with EN 19. It is subject to the 5 year review. Should the inconsistencies with EN 19 be allowed to continue or should the ISO be updated?
Published: 26th March 2018
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