This product is a patent product independently developed by our company. The cylinder and head of the equipment are made of carbon steel for anti-corrosion, the tube sheet is made of diffuse graphite, the heat exchange tube is made of modified phenolic resin profiled stone plastic tube, and the elastic sealing composite structure of our company is adopted between the tube and the tube sheet, with single tube sealing, reliable performance and convenient maintenance. Heat exchange tube models: P32 / P22, Zhong 37 / q25 φ 50/p36.