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China Vane Pump Detailed Blade Pump Installation Start Operation


The China Vane Pump says: The vane pump is a pump that is both light and compact, and it is a fine machining process with complicated manufacturing processes. When the rotor of the vane pump rotates, the blade does not stick to the inner surface of the stator under the action of centrifugal force and pressure oil, so that the working volume formed by the two vanes and the inner surface of the rotor and the stator is small to large. Two oil suctions and oil drains were not completed when the blades were rotated one revolution.

  Seals

  The mineral oil-based hydraulic pressure is used as the working medium, the standard nitrile rubber seal is used,and the phosphate-based synthetic hydraulic pressure requires the use of rubber seals.

  filter

  In order to obtain the longest life and reliability of the pump and other system components, effective filtration protection must be taken. The fluid cleanliness shall be in accordance with the level specified in ISO 4406:1999, and the quality of the filter elements shall comply with the requirements of the ISO standard.

  Minimum filtration accuracy requires X (mm):

  Meet the working requirements of general hydraulic systems

  Oil solid particle contamination should not be higher than 20/18/15 ISO 4409:1999

  Meet the longest life and highest functional reliability requirements of system components:

  The degree of contamination of oil solid particles is not higher than 18/16/13 ISO 4406:1999

  The China vane pump details the installation of the vane pump:

  Horizontal installation: The pressure port is installed sideways or upwards, and the suction port is installed sideways or downwards to install the drain port.

  Vertical installation: the shaft end is facing up.

  The pump and suction line should be installed so that the absolute pressure at the suction port of the pump is not less than 0.8 bar. The suction line should be as short and straight as possible. If the pump is installed in the fuel tank, especially the high response pump, it is recommended. At the suction port, a short suction pipe cut into 45° is cut to
improve the oil absorption condition. Since the air entering the oil suction pipe will cause air pockets, noise and damage to the pump, the connection piece should be free of leakage.

  Drain port

  During the process of compensating the variable, the pilot control flow will increase for a short time, so pay attention to the size of the nozzle head. The drain line must be directly and unthrottled into the tank, not
with other return lines. connected. The end of the drain line must be below the lowest level of the tank and as far as possible from the suction port. Even in the parked state, the oil inside the pump will not be drained, and the hot oil
mixed with air will not enter the system.

  For the same reason, when the pump is installed inside the fuel tank, the installation of the drain line should also form a siphon effect to ensure that the pump housing can always be filled with oil, the pressure of the drain housing must not exceed 2 bar, the drain line The length should not exceed 2000mm, the minimum pipe diameter should be selected according to the pump port specification, and the low-pressure straight-through pipe joint with the largest diameter should be selected.

  transmission

  The drive shaft of the pump and motor must be within the range of 0.25mm TIR. Elastic couplings with clearance error compensation and angular error compensation should be used. The installation should be carried out according to the coupling manufacturer's instructions.

  When the transmission causes the pump's rotating shaft to have a radial load, it should be consulted by the professional manufacturer, and the axial direction of the pump rotating shaft is also not allowed.

  pneumatic

  Before the initial operation, the pump casing should be filled with oil. When starting for the first time, the system should be operated without pressure. The purpose is to fill the system and vent the pump and pipe, only in the system. After the air is emptied, it can be pressurized.

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