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API 6D vs 594 swing check valve

API 6D vs 594 swing check valve

API 6D vs 594 swing check valve

(OP)
If manufacture the 42" 150lb swing check valve which (6D/594) standard is applicable ?

42" swing check valve Face to Face End to End dimensions is not defined directly in table .

Design : API 6D / 594 ?
Face to Face : By agreement
Wall thickness : ASME 16.34
Flange End : ASME B16.47 Series B
Test : API 598
Lever & Counterweight : BS1868

Is this applicable to purchase a correct valve ?

RE: API 6D vs 594 swing check valve

API594 is typically for compact checks and FTF is very short (wafer type). API6D is better for a pipeline check valve. Ciao!

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