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The diaphragm seal can protect the measuring instrument from corrosive, viscous, crystalline, corrosive, environmentally harmful or toxic media. Diaphragm made of appropriate materials can separate the measuring instrument from the measured medium. Therefore, the measuring instrument can be used for the most difficult measurement as long as the appropriate diaphragm seal is equipped. The filling liquid inside the system (the most suitable liquid can be selected according to the specific application) can transmit the pressure to the measuring instrument by hydraulic means. We can provide diaphragm seals of different designs and materials to meet all application requirements. When selecting diaphragm seals, users should pay attention to two important standards: one is the type of process connectors (flange, thread and sterile connector); The second is the basic manufacturing method. H16 diaphragm seal adopts threaded connection design and is widely used. The lower chamber can be replaced without changing the diaphragm seal system (e.g. when replacing process connections). Type H16 can adapt to a larger pressure range (smaller diaphragm diameter). Diaphragm seal and measuring instrument can be directly assembled (standard configuration), or assembled through cooling element or flexible capillary tube (optional). In terms of material selection, a variety of solutions are provided. The upper chamber, diaphragm and lower chamber of diaphragm seal can be made of the same or different materials. The diaphragm and lower chamber can also be sprayed or coated. The H16 diaphragm seal is especially suitable for aggressive or high-temperature media. The instrument is mainly used in process industry.