Diaphragm dosing pump is a type of dosing pump, cyclic timing design, flow 21.6 L/h, stroke 160 N/m, strong corrosion resistance, widely used for chemical addition in power plants, steel and petrochemical systems.
21.6 L/h Flow Diaphragm Metering Pump Features
- Green screen digital display, brand new circuit design, more stable operation
- Stroke frequency button adjustment
- Standard configuration cycle timer, optional 7-day timer
- Dosing pump can directly compile external signals without a converter
- New type of one-way valve assembly, PTFE valve seat, acid and alkali resistance, more reasonable structure, stronger sealing
- ACEH/PC shell, strong and durable structure, weather resistance is far better than ABS material
- A variety of pump heads and sealing materials are available, suitable for a wider range of media delivery
- Optional low liquid level stop pump and alarm function
- Added diaphragm damage protection and alarm function
- Optional Rs485 by Modbus-RTU
Diaphragm Dosing Pump Specification:
Model | CHN-DP-C20003 |
Power | 49W |
Flow | 21.6 L/h |
Pressure | 3.5 Bar |
Stroke | 160 N/m |
Wet Suction Range | 2.0m |
Dosing Pump Hose | 6 x 9mm |
Interface | DN 15mm |
Power Supply | 220V |
Repeated Measurement Accuracy | -5%~5% |
Allowable Ambient Temperature | 5℃~180℃ (PTFE pump head ), |
Allowable Medium Viscosity | High viscosity pump head ≤ 1000 mPA.s |
Particle Diameter | ≤0.15mm |
Protection Class | IP55 |
Insulation Class | F |
Weight | 4.5 kg |
Warranty Period | 12 Months |
LCD Display Dosing Pump Dimension (unit: mm)

Tips: Diaphragm metering pump applications
1. Diaphragm metering pump can be used for sewage treatment in electroplating, circuit boards, and chemical industries
2. Additives added in the production process of metal, textile and paper industry
3. Used for chemical addition in power plants, steel, petrochemical, and boiler systems
4. Diaphragm metering pump can be used for swimming pool water treatment, reverse osmosis system, industrial wastewater treatment, various factories, laboratories, etc.