Selection method of imported and domestic plate heat exchanger gasket_
Selection method of gaskets for imported and domestic plate heat exchangers
486 plate heat exchanger gasket is a kind of ring that can produce plastic deformation and is made of a certain strength material. It is one of the important components of plate heat exchanger, most of the gaskets are made from non-metal Cut off from the board, or made by a professional factory according to the specified size. At present, the common plate heat exchanger gaskets on the market mainly include imported and domestic two series. When choosing, we must choose the appropriate one according to actual needs. In the following, the plate heat exchanger gasket manufacturer, Diguang, will transfer heat to everyone to talk about the selection methods and points of attention for imported and domestic plate heat exchanger gaskets. The gasket is an important part of the plate heat exchanger. When assembling, the gasket is fixed in the sealing groove of the plate with adhesive first, and the gasket is placed in the circumferential groove of the hole according to the needs of fluid flow. , So as to allow or prevent fluid from entering the channel between the plates, to achieve the purpose of heat exchange. The material, structure and compression ratio of the gasket are directly related to the sealing effect of the plate heat exchanger. At present, the commonly used gasket materials include synthetic rubber and asbestos rubber. Synthetic rubber commonly used are nitrile rubber, EPDM and fluoro rubber. The physical performance indicators of synthetic rubber gaskets mainly include permanent compression deformation and elongation at break under working conditions. The hardness indicators of rubber gaskets should be determined according to the form of the sealing groove and the amount of compression. The sealing gaskets of the plate heat exchanger have different types of rubber, and the adaptable temperature and medium parameters are different. Nitrile rubber is generally suitable for non-polar media such as alkanes and olefins, light and heavy fuel oils, lubricating oil, animal and vegetable oils, hot water, salt water and other media with a temperature higher than -25 and lower than 120 degrees Celsius. EPDM rubber is mainly suitable for superheated water, water vapor, atmospheric ozone, non-petroleum-based lubricating oil, weak acids, weak bases, ketones, alcohols and other media with a temperature higher than -50 and lower than 150 degrees Celsius. Fluorine rubber is mainly suitable for non-polar mineral oils whose temperature is higher than 0 and lower than 180 degrees Celsius, such as pump oil, lubricating oil, etc., and can also be used for food oil. Therefore, for different working conditions, the plates and gaskets of the plate heat exchanger selected by the user should also be different. If you want to know more about the type and price of plate heat exchanger gaskets, please go to the official website of Diguang Heat Transfer for detailed consultation.