Pressure reducing valves
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Pressure reducing valves


Pressure reducing valve
without leakage recirculation
threaded port or manifold connection



Pressure reducing valves are ideal for the application in static leak-oil free clamping systems, which are decoupled by a pressure pump unit. The function of the pressure reducing valve is to maintain the outlet pressure A on the consumer also with variable, always higher supply pressure P constant.

Once the supply pressure equals the adjusted outlet pressure, a check valve completely blocks the oil flow. Therefore, the pressure can not increase any more. Until the adjusted outlet pressure is acquired, the hydraulic oil can easily flow from P→A through the valve. A pressure spring opens the oil flow against the supply pressure, as soon as the outlet pressure, eg. due to the consumer, decreases. This makes the hydraulic oil flow until the initial pressure is acquired again.

Since this pressure reducing valve does not have a leak-oil port, an supply pressure rise might not be compensated. Reasons for such an unwanted pressure rise can be for example: warming, external influences, effects by foreign matter (chips) in the valve seat etc. Overload balance is not possible due to this pressure reducing valve version.

HYDROKOMP recommends installing a pressure reducing valve between the valve and the consumer. The opening pressure adjusted for the pressure reducing valve may not exceed the max. permissible operating pressure of the consumer. If possible, it should be approx. 10% above the outlet pressure. The outlet pressure can be adjusted by a pressure gauge which also allows the visual control of the outlet pressure.


Special features:
  • optimal use of clamping force with cylinders and cylinder groups

  • automatic adjustment for outlet pressure

  • ideal for static clamp systems

  • no leak-oil tubes

  • housing with pressure gauge port

  • varied settings possible




If throttle check valves and sequence valves are to be combined in sequence with the pressure reducing valve, the order described in the example must be considered.





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Technology that connects

HYDROKOMP Headquarters 1

Founded 1998, HYDROKOMP designs, manufactures and distributes hydraulic components, coupling systems and clamping technology for mechanical engineering, fixture construction, tooling and many other branches of industry also for different operating conditions.

HYDROKOMP Headquarters 2

HYDROKOMP is the right supplier for companies of mechanical engineering fixture construction, tooling and many other branches of industry worldwide. Constructive ideas and customer-specific designs are our particular strengths.

HYDROKOMP Production Facility 1

Each and every one of our products is developed and manufactured according to the highest quality standards. With modern CAD systems we design new solutions. After that, current procedures of precision manufacture and quality assurance are next in process.

HYDROKOMP Production Facility 2

Our qualified employees and our modern CNC machinery ensure high flexibility product variety and quality. HYDROKOMP products are designed for long-lasting application in rough industrial daily routine. Our customers can surely trust that the process will flow smoothly.

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