Product Category

Metering Pumps
Precision Chemical Dosing

HAOSH metering pumps cover three drive types — solenoid, mechanical, and hydraulic — across 9 models. Engineered for precise chemical dosing in water treatment, chemical processing, and high-pressure petrochemical injection.

9 Products|3 Drive Types|Request a Quote

All Metering Pump Products(9 products)

H SeriesSolenoid-Driven Diaphragm Metering Pump
H Series

H Series

Digital Display, Precision Dosing

Max Flow Rate: Up to 30 L/hMax Back Pressure: Up to 10 bar
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H Plus SeriesSolenoid-Driven Diaphragm Metering Pump
H+ Series

H Plus Series

Enhanced Solenoid Pump, Extended Flow Range

Max Flow Rate: Up to 60 L/hMax Back Pressure: Up to 10 bar
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HS SeriesSolenoid-Driven Diaphragm Metering Pump
HS Series

HS Series

Dial-Adjusted, Cost-Effective Dosing

Max Flow Rate: Up to 20 L/hMax Back Pressure: Up to 10 bar
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HH SeriesSolenoid-Driven Diaphragm Metering Pump
HH Series

HH Series

High-Frequency, High-Pressure Industrial Reliability

Max Flow Rate: Up to 30 L/hMax Back Pressure: Up to 16 bar
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HJ-W SeriesMechanical-Driven Diaphragm Metering Pump
HJ-W Series

HJ-W Series

Worm Gear Drive, High-Flow Precision Metering

Max Flow Rate: Up to 1,500 L/hMax Back Pressure: Up to 10 bar
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HJ-L SeriesMechanical-Driven Diaphragm Metering Pump
HJ-L Series

HJ-L Series

Cam Drive, Stable and Reliable

Max Flow Rate: Up to 600 L/hMax Back Pressure: Up to 10 bar
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HJ-Z SeriesMechanical-Driven Diaphragm Metering Pump
HJ-Z Series

HJ-Z Series

Crank-Connecting Rod Drive, Heavy-Duty Industrial Choice

Max Flow Rate: Up to 2,000 L/hMax Back Pressure: Up to 16 bar
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HY-X SeriesHydraulic-Driven Diaphragm Metering Pump
HY-X Series

HY-X Series

Hydraulic-Balanced Diaphragm, Ultra-High-Pressure Precision

Max Flow Rate: Up to 1,000 L/hMax Back Pressure: Up to 100 bar
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HY-D SeriesHydraulic-Driven Diaphragm Metering Pump
HY-D Series

HY-D Series

Double-Diaphragm Leak Prevention, Maximum Safety

Max Flow Rate: Up to 800 L/hMax Back Pressure: Up to 80 bar
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Need Technical Selection Support?

Our engineering team can recommend the most suitable metering pump model based on your process parameters, media characteristics, and installation conditions.

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