Quote:
Originally Posted by Nate Laverdure
The inline pressure regulators linked in this thread are super cool.
The literature says that they contain "a built-in relief valve to exhaust over-pressure." What determines the relief set pressure? Is it a function of the set pressure of the regulator, or is it constant?
Genuinely interested (not trying for a gotcha!) in understanding how this device meets the intent of R82.
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The relief feature is based on the set pressure so it completely meets the definition of the rule. If you take a large pneumatic cylinder downstream that is extended and then manually push it back, if the regulator did not exhaust then the regulated pressure will go beyond set pressure.
The exhaust feature is required to be legal. That is why many of us already thought the regulator was legal. This q&a answer confirms it is legal.