Gear Metering Pump For Liquid Additives

Liquid Additive Gear Metering Pump is a positive displacement dosing pump designed for accurate, continuous inline proportioning of all kinds of liquid additives. Flow rate is linearly proportional to rotation speed. Servo or VFD drive delivers stable dosing with excellent repeatability even at low flow rates.

Wetted parts standard in SUS316L; gears and bushings optional PEEK, 440C. Sealing options: FFKM, double mechanical seal or magnetic sealless structure. Heating jacket available for crystallizable or high-viscosity additives. It supports 4–20mA and pulse signal to synchronize dosing speed with main production line.

Key Features

High precision inline dosing, repeatability ≤ ±0.5% with servo drive

Modular wetted parts: SUS316L, PEEK, FFKM seal / magnetic drive

Jacket heating optional for easy-crystallization additives

Without pulsation, smooth continuous output

Explosion-proof motor available for hazardous area

Compact design, easy integration into dosing system, reactor and coater

FAQ:

Q: What is the dosing accuracy?

A: With servo motor, repeatability ≤ ±0.5%.

Q: Can it run dry?

A: Dry running is forbidden, it will damage gears and bearings.

Q: What viscosity range?

A: Suitable for clean liquid additives from low to medium-high viscosity, no hard abrasive particles.

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