We want to inject chemicals into seawater in the ship’s built-in ballast water management system.
Disinfectant (sodium hypochlorite) is injected proportional to flow rate and neutralizing reducing agent (sodium sulfite) is injected proportional to concentration.

• A high level of reliability is required in order to strictly adhere to the discharge standards prescribed by treaties.
• The treated volume fluctuates greatly, so we would like to have a large control range for the chemical injection amount.
• After treatment, the water is discharged directly into the sea, so the water must be treated completely.
• The space on the ship is limited, so we want the device to be compact.
• To reduce the maintenance load, we want to make the piping sturdy and simple.

We suggested that the customer use a Smoothflow Pump, and they agreed to this proposal.

• Because of the continuous, constant flow with no pulsation, the amount to inject can be measured and controlled with a flow meter.
• It is now possible to support a wide range of control at 1:60.
• Mixing and treatment are performed inside a pipe without having to install a stirring tank, which makes the device compact.
• Because there is no pulsation, the piping diameter can be reduced.
• Because there are no piping vibrations, the system is sturdy. Also, accessories such as an air chamber are unnecessary, which has reduced the maintenance load.