What is double tube sheet heat exchanger? The double tube plate heat exchanger is a heat exchanger with two tube plates with a certain gap or equivalent to two tube plates with a certain gap at one end of the heat exchanger. It is mainly used in the working conditions with high sanitary requirements. Its unique design makes it easy to completely empty and keep the heat exchange tube in a clean state and can provide greater heat transfer performance. Material: All made of high quality stainless steel 316L Standard: Designed and manufactured according to GMP requirements Specifications of heat exchange tubes: 6,8,0 12, etc. Tube surface roughness: