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Non return valve replace

Non return valve replace

Non return valve replace

(OP)
Hello every one,

Please tell the difference between the flange /dimensions of a NRV of DN80 PN 16 & DN 80 PN25

I need to replace the NRV(Dn 80 Pn 16)of a pump.the delivery pressure of the pump is 16 bar ,so i was planning to replace the NRV with pn 25.so the dimensions ,bolt size of this DN 80 PN 25 NRV same to DN 80 pN 16 NRV

images attached
thank you ,

RE: Non return valve replace

Ask the vendor maybe?

No images and you don't state the design code of the valve ( sounds like an EN code at PN25).

Doesn't Google have the answer?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Non return valve replace

Refer to EN 1092-1 for the flange detail dimensions. Besides the number of bolts and BCD, it has the thickness of the flange for the proper bolt length as needed.

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