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Unread 28-03-2011, 16:25
Roboman01 Roboman01 is offline
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Re: Solution: Variable position of cylinder in compliance with <R74>

Quote:
Originally Posted by Al Skierkiewicz View Post
<R73> The pressure vent plug valve must be connected to the pneumatic circuit such that, when manually operated, it will vent to the atmosphere to relieve all stored pressure.

Doesn't indicate positive or negative pressure, simply all stored pressure.
True, but negative pressure is a vacuum, and vacuums are not subject to the rules.
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