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Unread 16-03-2015, 12:06
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FRC #2974 (WALT)
Team Role: Mentor
 
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Re: Al's Annual Inspection Thread 2015

Another Q&A A welcomed clarification of the solenoid pressure rating rule. Pretty much any industrial valve with a rated working pressure over 100 psi should meet this.
R446
Quote:
Q. R66(D), a solenoid valve "rated for a maximum working pressure that is less than 125 psi" versus a relief valve "set to a lower pressure than the maximum pressure rating". According to the manufacturers we have contacted and NFPA definitions MWP and MPR are 2 unrelated requirements. A valve is safe up to its MPR but only rated to "work" (the solenoid would actuate the valve normally) at it's MWP. If the MPR is >125 (ours is 215) is it acceptable without additional relief? Our MWP is 115.
2015-03-04 by FRC2973
A. Thank you for the question. This is legal, and the language will be updated in the Game Manual in Team Update 2015-03-17 to be consistent with this answer.
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Last edited by FrankJ : 16-03-2015 at 12:08.
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