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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.
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