A diaphragm seal that protects pressure instruments from aggressive, hot, viscous, or crystallizing process media. The seal isolates the connected gauge or transmitter from the process while transmitting pressure faithfully through a fill fluid contained between the flexible diaphragm and the instrument socket.
Frequently Asked Questions
What does a diaphragm seal do? It isolates a pressure instrument from the process fluid, protecting it from corrosion, high temperatures, viscous media, and crystallization while still allowing accurate pressure transmission.
Can it be cleaned in place? Yes. Sanitary-style variants with hygienic connections are available for CIP/SIP cleaning routines in food and pharmaceutical applications.
How is the right diaphragm material chosen? Material selection is based on chemical compatibility, process temperature, and pressure range; common options include stainless steel, Hastelloy, tantalum, and PTFE coatings.
