Quote:
Originally Posted by Particle
I'm afraid I really don't understand yet. I've been checking various places and get different answers from different people.
R78c says 1/8" port diameter but even the KOP valve is itself 7mm (0.27") with fittings that convert that to 1/4". Does anyone know somewhere we can get a definitive answer on solenoid selection?
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This is a longstanding issue with the rules. Historically, when they've given a port size, they were actually referring to the nominal
NPT pipe thread size of the port. (Nominal, because the NPT size is correlated with the approximate inner diameter of the pipe or fitting.)
The specification should really be in terms of the limiting orifice size (at some well-defined point).