Technology

  Hydraulic System basis Valve function The valve is provided with an internal control passage to evaluate the outlet pressure (at port B).  When sufficient pilot pressure is applied, the spool moves against the spring force and opens the valve, thus allowing the flow through the valve.  They are designed to operate efficiently under extreme conditions and within wide-ranging temperatures. Choosing the right hydraulic valve for your application is critical to securing the performance, reliability and lifespan of your system.  A pilot passage ‘x’ is provided in the valve to accept signals from the inlet to act on one side of the spool.  The flow path through the valve opens when the pressure at the pilot port increases beyond the pressure setting.  The main function of the counterbalance valve in a hydraulic circuit with a load-carrying actuator is to maintain the preset back pressure in the return line of the circuit, sufficient to balance the load held by ...