The customer worked on constructing a binary power plant in a hot spring site in the Kyushu region. The pumps used here had to be strongly resistant to high-temperature sulfate springs.
High quietness was also required on all equipment supplied for this project because the plant was to be constructed near a residential area.
The liquid was found to be sulfate springs with a temperature of about 70℃ containing sulfate ions and chloride ions. So we selected SUS316 stainless steel with anti-corrosive and durability and developed the pump with this material.
We conducted noise tests(dB) and octave band analysis before shipment and delivered to our customer the products which had passed our noise standard.