This European Standard specifies the requirements for cast iron check valves.
This standard applies to cast iron 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.
The range of nominal sizes covered is:
DN 10; 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 800; DN 900; DN 1000.
The range of pressure designations covered is:
PN 2,5; PN 6; PN 10; PN 16; PN 25.
NOTE: Back flow prevention anti-pollution check valves are outside the scope of this standard.
BS EN 12334:2001 Referenced Document
EN 1092-2 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges*， 2023-11-29 Update
EN 558-1 Industrial Valves - Face-to-Face and Centre- to-Face Dimensions of Metal Valves for Use in Flanged Pipe Systems Part 1. PN-Designated Valves
EN 736-1 Valves - Terminology - Part 1: Definition of types of valves*， 2018-02-01 Update
EN 736-2 Valves - Terminology - Part 2: Definition of components of valves*， 2016-02-01 Update
EN 736-3 Valves - Terminology - Part 3: Definition of terms*， 2008-01-01 Update
BS EN 12334:2001 history
2016BS EN 16767:2016 Industrial valves. Steel and cast iron check valves