Valves that trigger switching processes on reaching an adjustable pressure. A differentiation is made between:
Shut-off valve
- The valve opens to the outlet on reaching a pilot pressure (example: pump idle circulation valve).
Switch-off valve – internally controlled
- Enables the oil flow to a further consumer as soon as the pressure at the first consumer has reached a set value (control valve).
Switch-off valve – externally controlled
- Opens the connection to a further consumer as soon as a specific external pilot pressure is reached. This valve is suitable for pressure-controlled sequential controls between separate circuits.