WIKI TRI-CLAMP DIAPHRAGM SEAL INSTRUMENTATION

Diaphragm seals are used for the protection of pressure
measuring instruments in applications with difficult media. In
diaphragm seal systems, the diaphragm of the diaphragm
seal effects the separation of the instrument and the medium.
The pressure is transmitted to the measuring instrument
via the system fill fluid which is inside the diaphragm seal
system.