Topics | Metering Pump AccessoriesKey Issues When Designing Pipes for Sodium Hypochlorite Injection Pumps

Solenoid-driven diaphragm metering pumps are most commonly used for injection of sodium hypochlorite.

When designing pipes for a sodium hypochlorite injection pump, keep the following points in mind to prevent injection failure. This page describes the key points in designing pipes for a chemical feed pump.

Install the Pump Lower Than the Liquid Level of the Tank.

Pumps should be installed below the liquid level of the tank (forced piping).
Forced piping minimizes issues such as gas lock.

Shorten the Pipes.

Pipes and hoses should be as short as possible, especially on the suction side.
To achieve this, install the pump right next to the chemical solution tank.
This results in less gas being generated and less gas accumulating in the pipe, greatly minimizing the risk of gas lock.
Be careful not to install pipes or hoses in an upside-down U shape.

Use a Check Valve for Sodium Hypochlorite at the Point of Injection.

Use a check valve specially designed for use with sodium hypochlorite. Such devices have a mechanism to prevent the crystallization of sodium hypochlorite in the nozzle at the point of injection.

TACMINA Sodium Hypochlorite Injection Pump

We provide pumps specially designed for injection of sodium hypochlorite.
For details, refer to theDCLPW/CLPW