BS EN 16767:2016 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 flanged or wafer, butt welding, socket welding, or threaded.

This European Standard applies to check valves mainly used for industrial and general purpose applications. However, they may be used for other applications provided the requirements of the relevant performance standards are met.

Back flow prevention anti-pollution check valves are outside the scope of this European standard.

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 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 valves only.

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

The range of pressure designations covered is:

• 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;
• for flanged end, wafer type and butt welding end steel bodies:
  • PN 40; PN 63; PN 100;
  • Class 150; Class 300; Class 600;
• for socket welding end and threaded end steel bodies:
  • PN 40; PN 63; PN 100;
  • Class 600; Class 800.

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


Cross References:
EN 19:2016
prEN 558:2015
EN 736-1
EN 736-2
EN 736-3
EN 1092-1:2007+A1:2013
EN 1092-2:1997
EN 1759-1:2004
EN 10269:2013
EN 12266-1
EN 12351
EN 12516-1:2014
EN 12516-2:2014
EN 12516-4:2014
EN 12627:1999
prEN 12760:2015
EN 12982:2009
EN 16722
EN ISO 228-1
ISO 228-1
EN ISO 9606-1
ISO 9606-1
EN ISO 14732
ISO 14732
EN ISO 15607
ISO 15607
ISO 7-1:1994
ANSI/ASME B1.20.1
EN ISO 148-1
ISO 148-1
EN ISO 1043-1
ISO 1043-1
EN 1515-4
EN ISO 9692-1
ISO 9692-1
EN 12266-2
EN 12516-3
ISO 1629
ISO 4200
ISO 7005-2
ASME B16.25
ASME B36.10M


All current amendments available at time of purchase are included with the purchase of this document.