In order to isolate the measuring elemtent of pressure gauges, pressure switches and electronic pressure transmitters from corrosive, vicous and sedimentary process fluids, diaphragm seals are placed in between the measurement point and the instrument. Diaphragm seals must often be made of special high-strength materials.
Diaphragm seals are manufactured to DIN or ANSI standards.
Depending on model, following materials are available for the wetted parts:
Please have a look at our brochure "Introduction to Diaphragm Seals" .
There you find recommendations as well as information about material resistances.
Model 04.1B0 - 04.1BS
Pressure ranges from 0...0.1 bar to 0...40 bar and vacuum -1...0 bar
Process connection: thread
Can be dismounted for cleaning
Model 04.2B0
Pressure ranges from 0...1 bar to 0...160 bar and vacuum -1...0 bar
Process connection: thread
Weldet, several material available
Continuous duty
Optional overpressure 210 bar
Model 04.3A0 - 04.3B0
Pressure ranges from 0...1 bar to 0...250 bar and vacuum -1...0 bar
Process connection: flange
Flanged connection with passing through holes
Available with PTFE coating
Model 04.600
Pressure ranges from 0...1 bar to 0...40 bar and vacuum -1...0 bar
Process connection: flange
Available with PTFE coating
Model 04.400
Pressure ranges from 0...1 bar to 0...40 bar
Process connection: flange
Flanged connection with passing through holes
Faced diaphragm
Economic execution for special materials
Available with PTFE coating
Model 04.SAN
Pressure ranges from 0...1 bar to 0...40 bar
Process connection: as per DIN 11581, SMS681, RJT/APV, IDF/ISS
Perfect for hygienical and food applications
Surface finishing 0.76...0.38 µm
Model 04.AL
Pressure ranges from 0...1 bar to 0...40 bar
Process connection: as per ISO 2852
Clamp 1 1/2", 2", 2 1/2"
Surface finishing 0.76...0.38 µm