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An adjustable valve holding a set downstream air pressure.
Also known as: Air regulator symbol, Pneumatic reducing valve
In ISO 1219 fluid power diagrams a pneumatic pressure regulator is drawn as an adjustable valve sensing its own outlet, holding the working air pressure at a set value below supply.
Maintains a set outlet air pressure independently of supply pressure.
Contexts: Technical drawing
Is drawn on the same principle as the hydraulic pressure reducing valve, sensing downstream rather than upstream.
Contexts: Technical drawing
A square with a flow path, an adjustment arrow, a spring and a dashed pilot line taken from the outlet side.