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Norm
ÖNORM EN 16767
Issue date: 2020 07 15
Industrial valves - Metallic check valves
This document specifies the general requirements for metallic check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 18 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This document specifies the general requirements for metallic check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This document applies to metallic check valves used for all industrial applications.
Additional requirements given in the relevant application standards may apply to check valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the gas distribution industry).
Sanitary check valves and back flow prevention anti-pollution check valves are excluded from the scope of this document.
Norm
ISO 4200:1991
Issue date :
1991 02 21
Plain end steel tubes, welded and seamless — General tables of dimensions and masses per unit length