Gear pump Nachi Series Hydraulic Charge Pump Piston Pump Repair Kit

Oil absorption capacity is often expressed by the height of oil absorption. The better the oil suction capacity of the Nachi piston pump, which is to prevent cavitation, vibration and noise at the suction port of the pump. The essence of the self-priming capability of the Fujitsu plunger pump is that a partial vacuum is formed in the suction cavity of the pump, and the hydraulic oil in the oil tank flows into the suction cavity under the action of atmospheric pressure.

Therefore, the greater the vacuum of the oil suction chamber of the FUJIYUE plunger pump, the higher the oil suction height. However, the value of the vacuum degree is limited by the cavitation conditions. Generally, the allowable suction height does not exceed 500 mm (that is, the length of the suction pipe)

For the Nachi plunger pump with insufficient self-priming capacity, generally the following 3 methods can be used to easily solve it:

(1) Make the liquid level of the fuel tank higher than theNachi plunger pump--that is, install the Nachi plunger pump at a position below the liquid level of the fuel tank.

(2) Adopt a pressure oil tank-that is, a closed oil tank is used to increase the surface pressure of the oil tank, and the general pre-pressure is 0.05~0.25MPa.

(3) The charge pump is used to supply oil, and the charge pressure is generally 0.3~0.7MPa. For Nachi plunger pumps of different structure types, their self-priming capacity is different, so the self-priming capacity of the pump is also one of its performance indiors.

NACHI series 1 model: PCR-3B-12A (YC35-6 rotation) SWING
NACHI Series 2 Model: PVD-2B-28/32/34/36/38/40/42/45/50
NACHI series 3 model: PVS-1B-16/22/35 PUMP
NACHI series 4 models: PVD-3B-54/56/60/66P PUMP
NACHI series 5 model: PZ-6B-180/220 PUMP
NACHI Series 6 Model: PVK-2B-50/505 PUMP
NACHI series 7 model: PZ-4B-100 PUMP
NACHI series 8 models: PCL-120-18B PCL-200-18B SWING
NACHI series 9 model: Bob 3331 SWING
NACHI series 10 models: PVD-00B-14/16P PUMP
NACHI series 11 models: PVD-1B-23/28/32/34 PUMP
NACHI Series 12 Model: Bob 337 TRAVEL
NACHI series 13 model: PVK-3B-72/725

NACHI is one of the most famous manufacturers of piston pump in the world.

Elephant Fluid Power is manufacturing full sereis of replaceme Nachi piston pump parts for remanufacturing or repairing pumps in construction machinery and industry appliion.
All spare parts of Nachi pison pumps are produced in accordance with genuine parts, drawings.Elephant Fluid Power gets lots of positive responses from aftersales market about our parts quality and service.

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