UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Webinars & White Papers

CEN - EN 16767

Industrial valves - Metallic check valves

active, Most Current
Organization: CEN
Publication Date: 1 April 2020
Status: active
Page Count: 20
ICS Code (Check valves): 23.060.50
scope:

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.

NOTE 1 Double disc type and tilting disc type are also based on butterfly valve and are in the scope of this document.

The range of nominal sizes covered is:

- DN 8, DN 10; DN 12, DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 200.

DN 8 and DN 12 are not used for PN designated flanged end connections.

DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.

DN 750 is used for Class designated check valves only.

Socket welding end check valves and threaded end check valves are limited to the range DN 8 to DN 65.

The range of nominal diameters for capillary and compression end valves is 6 mm to 110 mm.

The range of pressure designations covered is:

a) for flanged end and wafer type end cast iron bodies:

- PN 2,5; PN 6; PN 10; PN 16; PN 25;

- Class 125; Class 250;

b) for flanged end, wafer type and butt welding end bodies in steel materials:

- PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400;

- Class 150; Class 300; Class 600; Class 900; Class 1 500; Class 2 500;

c) for socket welding end and threaded end bodies in steel materials:

- PN 40; PN 63; PN 100;

- Class 600; Class 800.

NOTE 2 Class 800 is a widely used Class designation for socket welding and threaded end check valves.

d) for flanged end and wafer type bodies in copper alloy materials:

- PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40;

- Class 150; Class 300;

e) for threaded end, capillary end and compression end bodies in copper alloy materials:

- PN 16; PN 20; PN 25; PN 32; PN 40;

- Class 125; Class 250.

The correspondence between DN and NPS is given for information in Annex B.

Document History

EN 16767
April 1, 2020
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 end connections flanged or...
April 1, 2016
Industrial valves - Steel and cast iron check valves
This European Standard specifies the requirements for cast iron or steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with end connections...

References

Advertisement