Parker PARKER gear pump GPG51 spot advantage in the United States

Parker, USAPARKERGPG51 gear pump spot advantage

Parker gear pump is equipped with differential pressuresafety valveAs an overload protection, the full reflux pressure of the safety valve is the rated discharge pressure of the pump1.5Twice. It can also be adjusted according to actual needs within the allowable discharge pressure range. But this safety valve cannot be usedpressure relief valveLong term work can be installed separately on the pipeline when needed.

The sealing design of the gear pump shaft end is in two forms, one ismechanical sealAnother type ispacking seal, can be determined based on specific usage and user requirements[1] .

Gear Oil PumpDue to being determineddisplacementDue to structural limitations, it is generally believed that gear pumps can only operate at constant flow ratesHydraulic sourceuse However, the attachments andThreaded connectionThe combination valve scheme is effective in improving its functionality, reducing system costs, and enhancing system reliability. Therefore, the performance of gear oil pumps can approach that of expensive and complex plunger pumps.

Installing a control valve directly on the pump can eliminate the pipeline between the pump and the directional valve, thereby controlling costs. Fewer pipe fittings and connectors can reduce leakage, thereby improving work efficiencyreliabilityMoreover, installing valves on the pump itself can reduce the circulating pressure of the circuit and improve its performance. Here are some circuits that can improve the basic functions of gear pumps, some of which have been proven feasible in practice, while others are innovative research.

The unloading components will be combined with high flow pumps and low-power single pumps. Liquid from twoGear Oil PumpDue to being determineddisplacementDue to structural limitations, it is generally believed that gear pumps can only operate at constant flow ratesHydraulic sourceuse However, the attachments andThreaded connectionThe combination valve scheme is effective in improving its functionality, reducing system costs, and enhancing system reliability. Therefore, due to the structural limitations of fixed displacement, gear oil pumps are generally considered to only be used as constant flow hydraulic sources. However, the combination valve scheme of accessories and threaded connections is effective in improving its functionality, reducing system costs, and enhancing system reliability. Therefore, the performance of gear oil pumps can approach that of expensive and complex plunger pumps. The performance can approach that of expensive and complex plunger pumps. Discharge from the outlet until the predetermined pressure and/or flow rate are reached. At this point, the high flow pump circulates the flow from its outlet to its inlet, thereby reducing the pump's output flow to the system, that is, reducing the pump's power to slightly higher than the required value for high-pressure operation. The percentage of traffic reduction depends on whether it is uninstalled at this timedisplacementThe ratio to the total displacement. Combination or threaded connectionUnloading valveReduced or even eliminated possible leaks in pipelines, ducts, accessories, and other components.

Parker, USAPARKERGPG51 gear pump spot advantage

Construction analysis:

The gear oil pump leaks during installation and static testing, and the internal electricity of the gear oil pump is affected during applicationThe rotor of the machine is the driving wheel, and the rotor of the external motor is the driven wheel. Due to the meshing rotation of the inner and outer motor rotors, the capacity of each liquid filled chamber undergoes different changes: when the capacity of the liquid filled chamber increases from small to large, a partial vacuum pump is caused in the liquid filled chamber, resulting in a difference of one tooth in the number of transmission gears of the rotor. Therefore, there is a secondary meshing during the entire meshing process, which will produce many separate closed liquid filled chambers. With the effect of high internal and external air pressure, the liquid flows through the annular groove on the inlet pipeline and pump cover,At the beginning of suction into the pump chamber, when the capacity of the packaging chamber exceeds a larger capacity time.Absorbent completelyDuring the entire operation of the gear pump, when the inner and outer motor rotors run in the same direction at different speeds around the two center lines parallel to each other, there will inevitably be a phase changeProcess completed;When the volume inside the fluid chamber changes significantly.Inside the fluid filled cavityThe liquid is pressurized out from another annular groove, which is the entire process of the pump's discharge. Internal meshingRegarding speed.This fitness exercise creates a continuous transition chamber between the inner and outer motor rotorsThe internal space, due to its connection with the suction and discharge channels, exceeds the destination of suction and discharge.