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Trochoid Pumps VS Gear Pumps

The trochoid pump consists of three parts: an outer rotor, an inner rotor, and a stator. They rotate synchronously through gear transmission. There are multiple plungers on the cycloid core between the inner and outer rotors. When rotating, they reciprocate as the flanges move away and closer, thereby completing the work of sucking in and discharging the fluid.

A gear pump is a forced flow pump, which includes gears, a pump body, an inlet and outlet, and a seal. The gears rotate synchronously through a connecting rod transmission or meshing between gears. The fluid enters the gap between the gears from the suction port, is clamped between the gears, and then is squeezed out of the outlet to complete the pumping action.

Comparison of advantages and disadvantages of Trochoid pumps and gear pumps

1. Comparison of advantages

(1) Trochoid pumps can achieve high-pressure and high-precision pumping, and have a large variable displacement range, which can adapt to different working conditions and flow requirements.

(2) Gear pumps have a simple structure, low cost, and good stability, and can be used for some low-pressure and low-viscosity liquid pumping.

2. Comparison of Disadvantages

Disadvantages of Trochoid Pumps:

Noise is high, not suitable for occasions with strict environmental requirements.

Efficiency is relatively low, generally between 93%-95%;

The flow pulse is large, which may affect system stability.

Interchangeability of parts is poor, and maintenance and replacement are limited.

It is difficult to repair after wear, and usually, the entire pump assembly needs to be replaced.

Disadvantages of Gear Pumps:

It is difficult to achieve precise control and flow regulation.

Application Scenarios of Trochoid Pumps and Gear Pumps

1. Application Scenarios of Trochoid Pumps: Trochoid pumps are widely used in fluid pumping under high-speed, high-pressure, high-viscosity, and other working conditions, such as aerospace, industrial automation, precision machinery, and other industries.

2. Application Scenarios of Gear Pumps: Gear pumps are usually used for some simple, low-pressure, low-viscosity liquid pumping, such as light industry, food, medical, environmental protection, and other industries.

Trochoid pumps and gear pumps each have their own advantages and disadvantages. When choosing, it is necessary to make a comprehensive comparison and consideration based on actual working conditions, flow requirements, accuracy, and other factors. Only by choosing the right pump can production efficiency, stable operation, and cost control be guaranteed.

When choosing, you need to make a comprehensive comparison and consideration based on actual working conditions, flow requirements, accuracy, and other factors to choose a trochoid pump or a gear pump. Only by choosing the right pump can you ensure production efficiency, stable operation, and cost control. RicoCNC can provide a series of trochoid pumps, such as 25P400-208EVB NOP Motor Trochoid Pump, Nippon TOP-25P400C-216EVB Motor Trochoid Pumps, 25P400L05-216EVK-100 NIPPON OIL PUMP Motor Trochoid Pumps. If you need them, welcome your inquiry