Center Off Pneumatic Valve

[2011FRC1515]

In the interest of safety we would like to use a "center off" pneumatic valve so in the event of a system de-pressurization or system power loss all of our pneumatic cylinders will "freeze" in place and will not move until system pressure and/or power is restored.

Assuming the robot is off and/or no signal is bring sent to the valve:
We believe this setup is in direct compliance with <R73> which would allow all "stored" pressure to be released from the system but the "working" pressure in the cylinder will be trapped creating the "freeze" effect.

Although we believe we are in compliance with <R73> we would like to confirm that we are in compliance with the intent of <R73>

Thank you,
Team 1515

[GDC]

Trapping the air under pressure as described would be a violation of R68/R73. The rule clearly states that when the required relief valve is opened, it will vent to the atmosphere to relieve all stored pressure.