Quote:
Originally Posted by bachster
FIRST has provided guidance to the LRI's that R77-I means that the published specifications of the regulator must indicate that its outlet pressure range is adjustable only up to 60 psi or less. Unfortunately, we didn't receive this guidance in time to pass it on to teams prior to Stop Build Day.
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Katie,
If that were really the case, then both of the recommended regulators listed in the blue box as recommended would also be illegal as they both can be adjusted to provide a working pressure well above 60 psi.
Why would we want to force teams to use a regulator with a published rated pressure below 60 psi, and then have them set it above that rated pressure? Something doesn't make sense here.
The manual currently states
R77 I. Pressure regulators with a maximum outlet pressure of no more than 60 psi
R82 “Working” air pressure on the ROBOT must be no greater than 60 psi and must be provided through a single primary adjustable, relieving, pressure regulator. Norgren regulator P/N: R07-100-RNEA or Monnier P/N: 101-3002-1 recommended.
It doesn't say anything about a maximum published outlet pressure. It does list two recommended regulators, but doesn't say that teams must use these. The fact that it does say "Recommended" indicates that others are allowed.
The regulator posted by the OP is perfectly suitable for a FRC Robot. My employer uses these exact regulators on industrial applications without issue. In my mind, it’s legal according to the robot rules as currently written. If this rule does get changed, I would encourage whoever is making these changes or clarifications to defer to someone with more experience with pneumatics. Changing the rules now to force teams to replace a perfectly suitable pressure regulator is pointless and will cause nothing but grief for teams and inspectors alike.