Wenzhou Prance Hydraulic Equipment Co., Ltd
Hydraulic pump torque calculation converts displacement and pressure into the shaft torque a prime mover must supply. The theoretical relationship is torque = pressure × displacement ÷ 2π; practical sizing must then account for mechanical e
The proportional valve vs servo valve decision is a system-level choice. Both meter hydraulic flow in response to an electrical command, but servo valves usually target higher dynamic response and tighter control with stricter fluid-cleanliness and c
A load sensing hydraulic valve sends a signal representing the highest active load back to a compatible variable pump. The pump then supplies enough pressure to overcome that load plus a control margin. When properly sized and compensated, this arran
A hydraulic valve power-beyond port carries pressurized carryover flow to a downstream valve, while the tank port returns exhaust and leakage flow at low pressure. They are not interchangeable. A power-beyond sleeve separates the high-pressure carryo
A hydraulic motor braking circuit controls a load that can drive the motor faster than pump flow would command. A correctly applied brake or counterbalance valve maintains controlled outlet resistance, admits pilot pressure for motion and works with
Hydraulic motor back pressure is the pressure at the motor outlet that opposes return flow. Some back pressure is normal in closed circuits, braking arrangements and long return lines, but it reduces the pressure difference available to make torque.
Hydraulic motors in series share the same flow path, while motors in parallel receive flow through separate branches. Series plumbing can synchronize displacement volumes under similar loads but adds pressure demands and exposes the downstream motor
A hydraulic vane pump cartridge replacement can restore the pumping group without replacing the complete housing, but it is not a shortcut around diagnosis. The replacement must match the pump series, displacement, rotation and port timing. The housi
Hydraulic gear pump wear is evidence, not a diagnosis by itself. A normal running track, abrasive scoring, cavitation erosion, housing wipe, bearing distress and heat discoloration point to different system conditions. Reading where damage appears—an
Compare monoblock and sectional hydraulic valves by construction, configuration, pressure drop, power beyond, spool choice, and service.
The axial piston pump valve plate separates inlet and outlet flow while the cylinder block rotates. Its kidney-shaped ports connect each piston bore to suction and pressure at the correct point in the cycle. Small timing features help manage compress
Compare gerotor and geroller orbital motors by contact geometry, low-speed behavior, torque, efficiency, bearing load, and circuit needs.