ISO/FDIS 15761 Steel gate, globe and check valves for sizes DN 100 and smaller

What is it?:  This document specifies the requirements for a series of compact steel gate, globe, and check valves for petroleum and natural gas industry applications. It is applicable to valves of nominal sizes DN 8 to DN100, pressure designations PN16 to PN400 and Class 150 to Class 2500. The document covers valve end flanges in accordance with EN 1092-1 and ASME B16.5 and valve body ends having tapered pipe threads in accordance with ISO 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 ≤ DN ≤ 50 with pressure designations Class 800 and Class 1500 and to bellows and bellows assembly construction as may be adaptable to gate or globe valves in sizes 8 ≤ DN ≤ 50. Also covered are requirements for bellows stem seal type testing..

Why is it important?:  The main changes are the following:

— Clause 2 "Normative references" was updated;

— addition of ASME Class 2500 designation and relevant dimensions ;

— addition of higher PN Class designations, including PN 63, 250 and 400, and relevant dimensions.

Supersedes: Will update the 2002 standard.  BS EN ISO 15761:2002 will be withdrawn and superseded 

The purpose of this document is to establish basic requirements and practices for steel gate, globe and check valves which can be socket welded, butt welded or flanged ended with reduced body seat openings, whose general construction parallels that described in API 602 and BS 5352.   The UK are expected to vote approval to the revised standard.

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