Motor-driven hydraulic diaphragm dosing pumps

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Operators of water-treatment applications requiring superior chemical dosing precision and reliability turn to the Stark series of motor-driven diaphragm pumps.

Powered by a high-efficiency, quiet-running motor and internal worm gearbox, the Stark range features cartridge valves with double and triple-ball configurations that maximize dosing precision, even for low flow rates.

Stark’s watertight construction not only ensures that toxic, corrosive and hazardous fluids can be pumped safely, it also protects these substances from external contamination for a completely-secure, reliable solution. 

And with a mechanical refilling system that maintains a constant hydraulic fluid level, precision and repeatability is guaranteed across a wide range of water-treatment applications, including food and beverage, wastewater and power generation.