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Unread 15-02-2010, 16:24
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Re: which Solenoid valves are legal?

Quote:
Originally Posted by terryo View Post
Hi zoisite117,

You should contact your Festo rep and ask if they can provide the Cv. My rep said that the liters/minute flow rate in this size valve will approximately correlate to the Cv, if you multiply liters/minute * 0.001. In this case 350 l/m would approximate a Cv of 0.35.
Also, the max port size is limited to 1/8" npt- this valve port is M7 (> 1/4").
But it should be available in a 1/8" version.

Good luck.
Cv to LPM is not a direct conversion. Get the real number from the manufacturer for that specific valve. You will not be able to compete with an "approximate" Cv.


Quote:
Originally Posted by zoisite117 View Post
I rather confused about this with flow rates

Do you a solenoid that would be legal and similar the one provided in KOP

sorry for the trouble.

Thank you again
Quote:
Originally Posted by <R72-C>
Solenoid valves. All such valves must have a maximum ⅛” NPT port diameter, and a maximum Cv of 0.32 (if non-KOP valves are used, the team will be required to provide part documentation validating that the valves meet these constraints).
zoisite,

Your valves MUST meet the above requirements (and all other pneumatic requirements in the rulebook).

You'll need a spec sheet on any valve that was not in the KoP to prove that it complies with the above rule.
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