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KCB electric fuel transfer pump cast iron gear pump for oil
KCB series gear pump ouline & installation dimension
Diagram of performance curve of Model KCB series gear pump
Working Principle
Driving gear (outside rotor) with internal tooth drives the internal rotor and turns in same direction in the full closed pump body. The inlet is from the outlet. When it turns, negative pressure formed at the suction port, the liquid inlet and being take to the outlet by rotor, then the liquid is impelled from the discharge port and the gears mesh. The transportation of liquid finished.
Structure Feature
As figure, the pumps are mainly composed of internal rotor, outside rotor, shaft, pump casing, front cover, seal, bearing etc.
The pump' seal adopts packing seal or mechanical seal. When the delivered medium is high temperature, high viscosity or strong corrosion, packing seal should be adopted.
When the delivered medium is easy crystal linic, we can design the heat preservation jacket in pump casing and front cover in order to melt the medium with steam when working. The pump can be also fitted with the safety valve.
The pump set is composed of the pump, motor and baseplate.
The driving way is belt wheel driving or coupling driving.
Package& Transportation
Application
KCB series gear pump applies to delivering non-corrosive lubricating-oil or equivalent liquid without solid particles and fibres at temperature below 80℃ and with the viscosity of 5-1500cSt.
Reducing the speed, the pump can delivery the liquid that the viscosity can be up to 500000cSt.
Application Scope
1. It can give performance as transfer pump or booster in oil deliver system.
2. It can be also applied as fuel pump for delivery system, pressurization and injection in fuel supply system.
3. In all industry fields it can be as lubricating pump.
Structure Features
KCB series gear pump are mainly composed of gears, axles, pump cover, safety valve and axle-end seals etc. The heat-treatment gears have the advantage of higher hardness and intensity, and rotate with the axles inside the replaceable bearing sleeves. All of pumps’s parts can be lubricated by delivered medium when working.
The pump is properly designed with leakage and return chute, which lets the gears bear the least torque force and reduces load and wear on bearings in order to raise pumps’ efficiency.
It is also designed with safety valve for protection against overload. The full return flow pressure of the safety valve is higher than the rated exhaust pressure of the pump. It can be also adjusted within the allowance of exhaust pressure range according to circumstances. But please note the safety valve can't be applied as pressure reducing valve for long time. You may install pressure reducing valve separately on pipe-line if needed.
The direction of rotation is clockwise viewed from coupling end.
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