We want to create a device for carrying out the quality compatibility test of construction piping made of resin.

• Make chlorine water flow through the piping for multiple months.
• With the chlorine water conditions of residual chlorine concentration, pH value, water amount, and liquid transfer pressure kept constant, test at three different temperatures (95°C, 105°C, and 115°C).

A dedicated test device that combines a Smoothflow Pump, temperature controller, and measuring instrument was designed and created.

• To observe with a flow meter, a Smoothflow Pump, which has no pulsation, was selected.
• The liquid transfer of a 115°C liquid was made possible by ensuring that the high-temperature liquid and the diaphragm do not come into direct contact.
• The temperature was adjusted by combining a chiller, heat exchanger, and boiler.
• It is now possible to continuously observe the residual chlorine concentration and pH value.