A speed limiting valve instantaneous flow characteristic testing device and testing method thereof
A technology for instantaneous flow and characteristic testing, which can be used in fluid pressure actuation devices, fluid pressure actuation system testing, mechanical equipment, etc., and can solve the problems of danger and high cost
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[0078] A speed limiting valve instantaneous flow characteristic testing device and testing method thereof. In this embodiment: the rated flow rate of the speed limiting valve 8 to be tested is 80L / min, and the rated working pressure is 15MPa; the model of the proportional variable pump 3 used is A4VSO125E02 / 30R-PPB13N00, the allowable rated pressure is 31.5MPa, and the displacement 125cm 3 / r, the speed is 1480rpm, the control signal is 0~10V; the proportional relief valve 4 model used is DBEME-10-31 / 315YG24K31M, the pressure level is 31.5MPa, the control signal is 0~10V; the electro-hydraulic reversing valve used 7 The model is 4WEH16E72 / 6EG24N9K4 / B10D3, the maximum pressure is 28MPa; the gear flowmeter 6 used is VC3F1PS+AS8-U-230, the measuring range is 0.6-160L / min, the output signal is 0-10V, and it is set to 0.6 when in use ~150L / min; the model of the first pressure sensor 5 and the second pressure sensor 9 used is PU5400, the measuring range is 0-40MPa, and the output s...
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