Quote:
Originally Posted by Conor Ryan
I'm not so familiar with quick exhaust valves, why would they be ruled unsafe?
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FRC rules are not necessarily implying that they are unsafe. R66 is a prescriptive rule listing the only pneumatic components which are legal. If it doesn't fit in one of those categories then it is illegal. Check valves are also
illegal according to the Q&A. My speculation is that FRC wants limit the types of valves to solenoid valves (ultimately controlled by the on the RIO firmware), relief valves (prevent over pressure on compressor) and pressure vent plug valves (each has to be capable of venting all pressure on their own, not in combination with other valves like quick exhaust valves) so that it is easy for inspectors to verify that the system is safe & under control. Probably the most time consuming part of the inspection process is verifying pneumatic operation (especially testing the setting of the relief valve) and verifying the operation and orientation of quick exhaust valves or check valves would only add to the time and complexity of inspection.
Quote:
Originally Posted by rfolea
#12: R66G - This really only applies to the primary regulator which HAS to be the KOP regulator (and is limited to 5-50psi). These should only be used DOWNSTREAM of that. Just like all the other regulators we typically use. Yes, I know the rules don't explicitly say that - we are talking to FIRST about the wording of that rule because it doesn't make any sense as stated...
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The primary regulator doesn't have to be the KOP Norgren one, the blue box under R71 recommends 2 different part numbers, but those are not the only ones that can be legally used. The
Monnier data sheet has output data for over 60 PSI but it must be adjusted to no greater than 60 PSI on a robot.
Quote:
Originally Posted by rfolea
Shut Off Valves - 2 and 3-way shut off valves - the 3-way valves relieve downstream pressure so you can shut off a subsystem and release pressure at the same time. Very handy. ( HVU14-2, HVU14-3)
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R66B requires pressure plug vent valves be functionally equivalent to the (2-way) KOP valves, so I am not sure 3-way valves would be meet that requirement (probably should ask next years Q&A, or try to get the rule changed for next year). I agree they would be useful (especially this year for removing cylinders to fit into transport configuration).