This document specifies performance requirements, methods of test and marking requirements for pressure reducing valves intended to reduce the downstream water pressure in the piping for water-based fire protection systems. Within the context of this document, pressure reducing valves include both pilot operated pressure reducing valves and direct acting pressure reducing valves. Performance and test requirements for other auxiliary components or attachments to pressure reducing valves are not within the scope of this document.
Status: PublishedPublication date: 2020-07
Edition: 1Number of pages: 13
Technical Committee: ISO/TC 21/SC 5 Fixed firefighting systems using water
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