Currently working pressure of the gear pump is close to a plunger pump, the combination of load sensing solutions provide the possibility of a variable for gear pump, this means that the originally clear boundaries between pump and plunger pump become more and more blurred, come together today to talk about the choice of hydraulic multi-way valve of the basic function of gear pump.
Reasonable choice of hydraulic multi-way valve program is one of the determining factors, is the cost of the entire system, compared with the price of the plunger pump, gear pump with its lower cost, simple loop, low filtration requirements, as a practical choice for many applications.
Because of the limitation of fixed displacement structure, it is generally considered that the gear pump can only be used as a constant flow hydraulic source. However, the accessory and threaded connection combination valve scheme is effective in improving its function, reducing the system cost and improving the system reliability, thus, the performance of the gear pump can be close to the price, complex plunger pump.
Direct installation of the control valve on the pump can eliminate the pipeline between the pump and the direction valve, thus controlling the cost. Less pipe fittings and fittings can reduce leakage and improve reliability. And the pump itself installation valve can reduce the circulation pressure loop, improve its performance.
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