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Additive metering pump

product details


The selection of auxiliary metering pump should consider the viscosity of medium, working temperature, working pressure, common flow rate and large flow rate. The basic form of medium metering pump is that two gears of the same size mesh and rotate in a close fitting shell. The internal type of the shell is like "8". Two gears are installed inside, and the outer diameter and both sides of the gear are closely matched with the shell. The material from the extruder enters into the middle of the two gears at the suction port, and fills the space. With the rotation of the teeth, it moves along the shell, and then discharges when the two teeth mesh. This kind of pump is made of high-quality alloy steel with high processing technology. It has a long service life and can be used up to six years.


Product features


Gear metering pump is mainly composed of gear, shaft, pump body, pump cover, bearing sleeve, shaft end seal, etc. The gear is made of double arc sine curve. Compared with involute gear, its outstanding advantage is that there is no relative sliding of tooth profile surface in the process of gear meshing, so the tooth surface has no wear, stable operation, no liquid phenomenon, low noise, long service life and high efficiency.


Technical parameters of small displacement


Import / Export: one in and one out

Displacement: 0.15-3.6cc/r

Working speed: 10-100r / min

Conveying medium: additives

Working temperature: < 200 ℃

Small inlet pressure: < 0.2MPa

8 MPa outlet pressure

Sealing mode: combined seal

Rotation direction: clockwise from the direction of the driving shaft


Technical parameters of large displacement


Import / Export: one in and one out

Working temperature: < 0.2MPa

Working speed: 5-200r / min

Conveying medium: fluid

Working temperature: < 200C

Working pressure: < 30MPa

Displacement: 6-30 (± 3%) CC / R

Sealing mode: combined seal

Rotation direction: clockwise from the direction of rotation axis

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