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{"title":"Rexroth Original German Quantitative High-Pressure Hydraulic Gear Pump with 28cc","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/b4\/95207730f3b799eff1119aca8867-200x200-1\/rexroth_original_german_quantitative_high_pressure_hydraulic_gear_pump_with_28cc_140cc_displacement.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"PGH4-2X\/025LE11VU2 PGH4-2X\/025LR11VU2 PGH4-2X\/032RE11VU2 PGH4-2X\/032RE11VE4 PGH4-2X\/032RR11VU2","Certifiion":"ISO","Place of Origin":"German"}}
Common Displacement Specifiions (ml/rev): 40, 71, 125, 180, 250, 355, 500, 750 Nominal Pressure: 350 bar Peak Pressure: 400 bar Bearing: Specially designed, long-life, high-precision full roller bearing Shaft: Through-shaft design allows for mounting additional pumps to form a multi-pump group
Commissioning and Adjustment
Alignment: Ensure the coupling between the pump and motor has a gap of 3-5 mm to avoid thrust load on the pump's bearing
Filling & Venting: Fill the pump casing with clean hydraulic fluid through the drain port to vent air before starting
Rotation Direction: Confirm the pump's specified rotation direction (viewed from the shaft end) and ensure the motor rotation matches
Minimum Flow Setting: If set too large, it may become impossible to lower the pressure setpoint by adjusting the control valve
DP Control Setup: For DP controls, the pressure differential is the sum of the pre-set pressure differentials, typically set to 33 bar
FAQ
Parallel Pump Operation: When multiple pumps with standard DR controls are set to the same pressure and run in parallel, slight inherent differences in their response characteristics can cause them to not reduce displacement at exactly the same time. This can lead to pressure fluctuations and potentially cause severe pipeline vibration.
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
