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Wika Models 432.50 & 433.50 Diaphragm Pressure Gauges

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Diaphragm pressure gauges are preferably used for low pressure ranges. Through the large working surface of the circular, corrugated diaphragm element, small pressure ranges can be measured reliably.

Measuring systems with diaphragm elements, on the grounds of their design, offer good protection from overpressure, since the diaphragm can support itself against the upper flange. As standard, the model 432.50 diaphragm pressure gauge already features an overload safety of 5 times the full scale value. Optionally, higher overload safeties can be realised.

Special features

■ Case and wetted parts from stainless steel 

■ Wide choice of special materials 

■ High overload safety up to the 10-fold full scale value 

■ Process connection thread or open flange 

■ Scale ranges from 0 … 16 mbar


■ For measuring points with increased overload 

■ With liquid-filled case suitability for high dynamic pressure loads and vibrations (model 433.50) 

■ For gaseous, liquid and aggressive media, also in aggressive environments 

■ With the open connecting flange option also for contaminated and viscous media 

■ Process industry: Chemical, petrochemical, power plants, mining, on-/offshore, environmental technology, machine building and general plant construction

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