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  • Routine Inspection And Tension Of Hydraulic Pumps
    1. The hydraulic pump checks the internal leakage of the boom cylinder. The easiest way is to raise the boom to see if it can be significantly lowered calmly. If the drop is significant, check the oil cylinder of the device and replace the sealing ring if it is worn; 2. Check the control valve. First wash the safety valve and check whether the valve core is worn. If it is worn, it should be...
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  • Purchase Requirements Of Hydraulic Pumps
    Whether the hydraulic pump requires variable: radial piston pump, axial piston pump, single-acting vane pump are variable pumps. Hydraulic pump working pressure: plunger pump pressure 31.5MPa; vane pump pressure 6.3MPa, high pressure can reach 21MPa; gear pump pressure 2.5MPa, high pressure can reach 25MPa. Hydraulic pump noise index: low-noise pump has internal gear pump, double-acting vane...
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  • Internal Gear Pumps Works: 7 Things To Note





    1. The drive shaft of the electric pump is connected to the motor shaft using an elastic coupling or a chain coupling.

    2. The pump drive shaft cannot withstand any radial vertical force, and the lateral driving methods such as belts, chains, gears are prohibited.

    3.The strength of the bottom plate should be enough, not for a long time, the bottom plate of the pump is soft, which will cause the motor and the pump to be misaligned and damage the pump.

    4. When the gear pump tightens the end bolts, the gear pump force should be symmetrical and uniform; move the rotor while tightening. If a jam occurs, the gear pump should be loosened and re-tightened.

    5.Find out the maximum allowable speed of the pump.

    6. Make sure the fluid enters the inlet, and try not to dry and dry.

    7.Do not reverse the inlet and outlet of the pump. It will cause the pump not to discharge.

    Zhejiang Yongling Hydraulic Machine Co , Ltd . is a professional China manufacturer and supplier of Internal Gear Pumps . Our internal gear pump products have the advantages of high working pressure, low pressure pulsation, and strong anti-pollution ability. This series of products are widely used in hydraulic systems of plastic machinery, leather machinery, pressure machinery, metallurgical machinery, forklifts and other industries. They are especially suitable for energy-saving systems of servo inverter drives. Welcome to purchase: https://www.china-vanepump.com/product/internal-gear-pumps/

    Internal Gear Pumps Works: 7 Things To Note 1. The drive shaft of the electric pump is connected to the motor shaft using an elastic coupling or a chain coupling. 2. The pump drive shaft cannot withstand any radial vertical force, and the lateral driving methods such as belts, chains, gears are prohibited. 3.The strength of the bottom plate should be enough, not for a long time, the bottom plate of the pump is soft, which will cause the motor and the pump to be misaligned and damage the pump. 4. When the gear pump tightens the end bolts, the gear pump force should be symmetrical and uniform; move the rotor while tightening. If a jam occurs, the gear pump should be loosened and re-tightened. 5.Find out the maximum allowable speed of the pump. 6. Make sure the fluid enters the inlet, and try not to dry and dry. 7.Do not reverse the inlet and outlet of the pump. It will cause the pump not to discharge. Zhejiang Yongling Hydraulic Machine Co , Ltd . is a professional China manufacturer and supplier of Internal Gear Pumps . Our internal gear pump products have the advantages of high working pressure, low pressure pulsation, and strong anti-pollution ability. This series of products are widely used in hydraulic systems of plastic machinery, leather machinery, pressure machinery, metallurgical machinery, forklifts and other industries. They are especially suitable for energy-saving systems of servo inverter drives. Welcome to purchase: https://www.china-vanepump.com/product/internal-gear-pumps/
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  • Hydraulic Pumps Suction Phenomenon: Solution
    When it comes to the suction phenomenon of the hydraulic pump, we have to say one point. The self-priming ability of the hydraulic pump refers to the ability of the pump to suck oil from the open tank below the pump at the rated speed. The size of the self-priming capacity is often expressed in terms of the height of the suction or the degree of vacuum. The air pumping phenomenon of the...
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  • Introduction To The Operation Of Internal Gear Pumps
    The internal gear pump works on the same principle, but the two interlocking gears are different in size. One interlocking gear rotates in the other. The larger gear (rotor) is an internal gear, that is, its teeth protrude inside. Within this range, a smaller external gear is installed eccentrically (idle gear-only drives the rotor). It is designed to interlock with the rotor so that the gear...
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  • Zhejiang Yongling Hydraulic Machinery Description: Oil Pumps Failure Causes
    What is the cause of the   Oil Pumps   failure? How can I resolve these failures? China oil pump manufacturer & Zhejiang Yongling Hydraulic Machinery Co., Ltd. explained: 1. The oil pump oil seal is worn, the rubber seal ring is aging and the rubber seal of the unloading sheet is deteriorated, loses its elasticity, and loses the sealing and blocking effect on the high...
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  • Fixed Vane Pumps-PV2R Vane Pumps: What Are The Characteristics?
    PV2R vane pump main features:1 Reasonable design and precision machining of curved blades can reduce the blade's compressive stress on the inner surface of the stator, and increase the service life of the stator and blades.2. The stator adopts advanced high-order reactive power. The curve above the curve makes the blade have good motion and stress, ensure good contact between the blade and the...
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  • Function Principle Of Balancing Valve Of Hydraulic Pumps
    Hydraulic pump balance valve, dynamic balance valve. Static balancing valve is also called balancing valve, manual balancing valve, digital lock balancing valve, double position regulating valve, etc. It changes the flow resistance through the valve by adjusting the gap (opening) between the valve core and the valve seat to achieve regulation. The purpose of the flow is to target the resistance...
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  • How To Use Maintenance: Hydraulic Pumps?
    1 Fuel supply method of hydraulic pump     The straight shaft swash plate type plunger pump is divided into two types of self-priming type, pressure supply type. Most of the pressure-supply hydraulic pumps use a pneumatic tank, and some hydraulic pumps have a replenishment sub-pump to supply pressure oil to the hydraulic pump inlet. The self-priming oil pump of the...
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  • Oil Pumps -What Is An Fuel Injection Pump?
    Fuel injection pumps are a category of fuel pumps. Fuel injection pumps are an important part of automotive diesel engines. The fuel injection pump assembly is usually a whole composed of fuel injection pump, governor and other components installed together. Among them, the governor is a component that guarantees the low-speed operation of the diesel engine and limits the maximum speed, and...
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