Pressure Reducing Valve without Leakage Oil Port

Pressure Reducing Valve - ROEMHELD C 2.9533

• Max. operating pressure: 500 bar

Advantages:

• Optimisation of the clamping force of individual cylinders or groups of cylinders
• Pressure limitation to the admissible operating pressure of individual cylinders or groups of cylinders
• Big adjusting range
• Automatic regulation in case of pressure drops at the secondary side
• No leakage oil port required
• Can be used in uncoupled clamping systems e.g. on clamping pallets
• Different installation possibilities
• Mounting body with pressure gauge connection
• Possibility to lead

Pressure reducing valves maintain the pressure at the cylinder port A (secondary pressure) more or less constant at a variable but always higher input pressure P (primary pressure).

Function:

Below the adjusted secondary pressure the hydraulic oil flows without any impediments from P to A. In case of pressure increase to the desired closing pressure a hermetically sealed pressure reducing valve shuts off the oil flow. Thereby a further pressure increase is avoided, also in case of further increasing primary pressure P. In case of a pressure drop, e.g. because of a leakage at a cylinder, the check valve will be opened by a strong spring against the existing primary pressure. Hydraulic oil can continue flowing until the adjusted secondary pressure is obtained. Increasing secondary pressure, e.g. due to temperature rise cannot be compensated, since there is no leakage oil port. Pressure reducing valves with leakage oil port see data sheet C 2.9532

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