Remote Control Relief Valves

We are offering remote control relief valves, direct type relief valves etc.
A hydraulic pressure control valve. Hydraulic equipment mainly from the constant pressure overflow effect, regulators, system unloading and security role.
Constant pressure relief function: in the throttle system, a metering pump, a metering pump to provide a constant flow rate. When the system pressure increases, flow demand will decrease. At this time, the pressure relief valve will open, so that excess power (often opened by the pressure fluctuations in valve opening) run back to the tank, the inlet pressure control valve to ensure that the pump output pressure is constant.
The role of the regulator: the road back to the oil pressure relief valve in series, back pressure valve moving parts increases steadily.
Unloading system: in the remote port relief valve in series of small overflow traffic when the solenoid is energized, the relief of the remote port in the tank, then pump unloading. Relief at this time as the relief valve.
Safety protection: if the system works properly, the valve is closed. Only the load a predetermined limit value of the overflow orifice (system pressure exceeds a set pressure), the overload protection device, the system pressure does not increase (usually, the pressure relief valve set pressure higher than the maximum operating pressure of the system 10% to 20%).
Practical applications in general are: for the relief valve for remote valve, for high and low multi-level control valve for the sequential valve, are used to generate backpressure (string in oil return).
Relief usually have two structures: a direct-acting relief valve. 2, pilot-type safety valve.
The most important prerequisite for the relief: the controller-area, small deviations regulator pressure concentricity small, sensitive, overburden great noise.