Technical Specifications

Operating Principle

Dosing pumps generally operate with diaphragm or piston-based working principles.

Diaphragm Type

Motor movement is transferred to the diaphragm via an eccentric mechanism. The forward and backward movement of the diaphragm creates suction and discharge phases, and the fluid is transferred in a single direction through check valves.

With this structure:

• chemical and mechanical parts are isolated
• safe chemical transfer is ensured
• precise dosing is achieved

Piston Type

• The piston moves back and forth inside the cylinder, transferring the fluid under high pressure.

Piston systems are preferred for applications requiring:

• higher pressure
• more precise flow control
• more stable injection

Flow rate adjustment is achieved via:

• stroke length
• stroke frequency

Technical Specifications

Flow Rate Range

• 0.1 L/h – 1,500 L/h
• (higher for industrial types)

Operating Pressure

• 5 – 20 bar
• Above 100 bar for high-pressure piston types

Dosing Accuracy

• ± 1% – ± 2%

Viscosity Range

• 1 – 2,000 cP

Operating Temperature

• 0°C / +80°C
• (higher with special materials)

Stroke Adjustment

• 0 – 100% mechanical or digital control

Control Types

• Manual adjustment
• Analog signal (4–20 mA)
• Digital / PLC controlled

Pump Types

• Mechanical diaphragm
• Hydraulic diaphragm
• Piston type
• Solenoid-driven compact type
• Process-type heavy-duty dosing pumps

Advantages

• High dosing accuracy
• Adjustable flow control
• Chemically resistant material options
• Compact design
• Low chemical consumption
• Compatibility with PLC and automation systems
• Reliable and repeatable injection performance