Industrial valves. Lined metal quarter turn and check valves for chemical process and related industries1 Scope This document specifies requirements for design, dimensions, material, fabrication and production testing of lined metal quarter turns valves (plug valves, butterfly valves, ball valves) and check valves with flanged, wafer and wafer lug body types. It covers valves of the nominal sizes, DN: 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 750, 800, 900, 1 000, 1 200; corresponding to nominal pipe

as these contain the best elevating heights

compliance with BS EN 62059-41 guidelines can ensure your products are reliable and effective when in use and facilitate the provision of accurate meter readings

through conformance testing

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The Normative references and Bibliography have been updated

are available for the 525 line-60 field systems

The products are not intended for use for direct airborne sound insulation or acoustic absorption applications

a) defines the appropriate dimensions and sub-dimensions required to describe the health of the population and performance of a health care system

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