NACHI PZ-6B-125-180E3A-20 Pump

PZ Series Load Sensitive Variable Piston Pump Startup Precautions: Check to make sure that the rotation direction of the pump is the same as the rotation direction indicated by the arrow on the pump body. Air entering the pump or pipes can cause noise or vibration. At startup, set the pump discharge side to a no-load state, and operate the pump in the inching mode to remove any air that might be in the pump or pipes. To enable superior pressure and flow control, loosen the air vent when starting up the pump in order to release any air, and … Read more

NACHI PZ-6B-100-180E2A-20 Pump

PZ Series Load Sensitive Variable Piston Pump Fluid: Provide a suction strainer with a filtering grade of about 100μ (150 mesh). Provide a return line filter of grade 10μm or less on the return line to the tank. (When the pump is used at a high pressure of 2000 psi or greater, a filter of 10μm or less is recommended.) Manage hydraulic operating fluid so contamination is maintained at class NAS10 or lower. Use hydraulic operating fluid when the operating ambient temperature is in the range of 32 to 140°F. Model No. PZ-6B-100-180E2A-20 Pump Capacity cu in/rev 10.98 Maximum Working … Read more

NACHI PZ-6B-80-180E1A-20 Pump

PZ Series Load Sensitive Variable Piston Pump Fluid: Use only good-quality hydraulic operating fluid with a kinematic viscosity during operation within the range of 20 to 200 centistokes. Normally, you should use an R&O type and wear-resistant type of ISOGV32 to 68 or equivalent. The optimum kinematic viscosity during operation is 20 to 50 centistokes. The operating temperature range is 41 to 140°F. When the oil temperature at startup is 41°F or less, run the pump at low pressure until the oil temperature reaches 40°F. Provide a suction strainer with a filtering grade of about 100μ (150 mesh). Provide a … Read more

NACHI PZ-5B-64-130E3A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Handling: Keep the clamping length of couplings and pump shafts at least 2/3 the length of the coupling width. Use a sufficiently rigid pump mounting base. Set pump suction side pressure to −4 psi or more (suction port flow velocity less than 6 ft/sec). Raise part of the drain piping so it is above the topmost part of the pump body, and insert the return section of the drain piping into the hydraulic operating fluid. Also, observe the values in the following table in order to limit the drain back pressure to 14.5 … Read more

NACHI PZ-4B-32-100E3A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Handling: Before adjusting the manual adjusting screw from the first time or when there is no input current to the valve due to electrical malfunction or some other reason, you can control pump pressure and flow rate by rotating the manual adjusting screw. Normally, the manual adjusting screw should be returned completely to its original position and secured with the lock nut.   Model No. PZ-4B-32-100E3A-11 Pump Capacity cu in/rev 6.10 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/ 290 to 2000 /290 to 3000 Flow Control Limit Range gpm … Read more

NACHI PZ-4B-25-100E2A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Features: Keep the clamping length of couplings and pump shafts at least 2/3 the length of the coupling width. Use a sufficiently rigid pump mounting base. Set pump suction side pressure to −4 psi or more (suction port flow velocity less than 6 ft/sec). Model No. PZ-4B-25-100E2A-11 Pump Capacity cu in/rev 6.10 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/ 290 to 2000 /290 to 3000 Flow Control Limit Range gpm Note 3 .26 to 47.5 Revolution Speed min -1 Min. 600 Max. 1800 Weight lbs 167 Fixed Discharge Pump … Read more

NACHI PZ-4B-20-100E1A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Features:   Use flexible couplings for connecting the pump shaft to the drive shaft, and prevent radial or thrust load from being applied to the pump shaft. Eccentricity between the drive shaft and pump shaft should be no greater than 0.01 in, with an eccentric angle error of 1° or less. Model No. PZ-4B-20-100E1A-11 Pump Capacity cu in/rev 6.10 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/ 290 to 2000 /290 to 3000 Flow Control Limit Range gpm Note 3 .26 to 47.5 Revolution Speed min -1 Min. 600 Max. 1800 … Read more

NACHI PZ-3B-16-70E3A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Features: The electro-hydraulic proportional control valve uses the proven force feedback system for improved hysteresis, repeatabil- ity, and response. The ability to create a double pump configuration with an IP pump further expands the range of possible applications. Model No. PZ-3B-16-70E3A-11 Pump Capacity cu in/rev 4.27 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/290 to 2000/290 to 3000 Flow Control Limit Range gpm Note 3 .26 to 33 Revolution Speed min -1 Min. 600 Max. 1800 Weight lbs 132 Fixed Discharge Pump  Note 1 Capacity cu in/rev 3.6 to … Read more

NACHI PZ-3B-13-70E2A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Features: The pump body houses an electro- hydraulic proportional control valve, compensator, and surge cutoff valve, which eliminates the need for superfluous piping. The electro-hydraulic proportional control valve uses the proven force feedback system for improved hysteresis, repeatabil- ity, and response. Model No. PZ-3B-13-70E2A-11 Pump Capacity cu in/rev 4.27 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/290 to 2000/290 to 3000 Flow Control Limit Range gpm Note 3 .26 to 33 Revolution Speed min -1 Min. 600 Max. 1800 Weight lbs 132 Fixed Discharge Pump  Note 1 Capacity cu … Read more

NACHI PZ-3B-10-70E1A-11 Pump

PZ Series Load Sensitive Variable Piston Pump Features: The electro-hydraulic proportional control valve uses the proven force feedback system for improved hysteresis, repeatabil- ity, and response. The ability to create a double pump configuration with an IP pump further expands the range of possible applications. Model No. PZ-3B-10-70E1A-11 Pump Capacity cu in/rev 4.27 Maximum Working Pressure psi 3045 Pressure Adjustment Range psi 290 to 1000/290 to 2000/290 to 3000 Flow Control Limit Range gpm Note 3 .26 to 33 Revolution Speed min -1 Min. 600 Max. 1800 Weight lbs 132 Fixed Discharge Pump  Note 1 Capacity cu in/rev 3.6 to … Read more