[83] 3-way pressure regulator (4)
If the pressure rises above
the preset value as the result of an external load at outlet A,
the valve opens to allow flow from A to the tank port T
(pressure-limiter function).
3-way pressure regulators are available with both positive and negative piston overlap. If a 3-way pressure regulator is created by combining a 2-way pressure regulator and a pressure relief valve, the “overlap” is adjustable.