Chemical Diaphragm Dosing Pump, 170 L/h Flow

Diaphragm dosing pump is a metering pump used for chemicals, which comes with a flexible diaphragm instead of a piston. The diaphragm moves back and forth to change the volume of the pump chamber, and sucks and discharges liquid under the action of the pump inlet and outlet valves.

Specification

• Model: ATO-DJ-Z170/0.7
• Flow: 170L/h
• Pressure: 0.7MPa
• Pump Stroke: 96 min^-1
• Pump Head Material: PVC
• Motor Power: 370W
• Motor Voltage: 380V 50Hz
• Inlet & Outlet Diameter: DN15
• Weight: 22kg

Dimension (Unit: mm)

Details

Tips: Do diaphragm dosing pumps prevent backflow?

Diaphragm dosing pumps are often employed in various industrial and chemical processes to accurately inject or dose chemicals, such as corrosive or hazardous substances, into a system. These pumps utilize a flexible diaphragm to displace the chemical, which is typically separated from the hydraulic components of the pump. While diaphragm dosing pumps are primarily designed for precise and controlled chemical dosing, they can also serve as a preventive measure against backflow to some extent.

Diaphragm dosing pumps inherently offer a degree of backflow prevention because they rely on the principle of positive displacement. When the diaphragm compresses, it displaces the chemical into the system under pressure. This pressurized flow helps to minimize the likelihood of backflow, especially when the downstream pressure exceeds the set dosing pressure. However, it's important to note that diaphragm dosing pumps are not backflow prevention devices per se.

For comprehensive backflow prevention, additional measures, such as check valves, are typically incorporated into the system. Check valves allow flow in one direction only, ensuring that the dosed chemicals do not flow back into the pump. The combination of diaphragm dosing pumps and check valves provides a reliable solution for preventing backflow and maintaining the integrity of industrial processes and water treatment systems.