Models 732.31, 732.51

Differential pressure gauge

For the process industry, all-metal media chamber

Selected documents
Sales contact

WIKA Instruments Romania S.R.L.

+40 21 4048327
+40 21 4563137


  • For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive environments
  • Pump monitoring and control
  • Filter monitoring
  • Level measurement on closed vessels

Special Features

  • Differential pressure measuring ranges from 0 … 16 mbar [0.23 psi]
  • High working pressure (static pressure) up to 40 bar [580 psi]
  • High overload safety up to 40 bar [580 psi]
  • Model 73x.31: Case with safety level "S3" per EN 837
  • All-welded media chamber


These differential pressure gauges are made of highly corrosion-resistant stainless steel and feature an all-metal media chamber to ensure long-term leak tightness (no elastomer sealing elements).

A high overload safety is achieved by the all-metal construction and the close-fitting design of the diaphragm measuring element.

The use of high-quality stainless steel materials and the robust design are geared to applications in the chemical and process engineering industries. Thus the instrument is suitable for liquid and gaseous media, also in aggressive environments.

The optionally available low-temperature version allows use at temperatures of down to -70 °C [-94 °F].

The safety version is made up of a non-splintering window, a solid baffle wall between measuring system and dial and a blow-out back. In the event of a failure, the operator is protected at the front side, as media or components can only be ejected via the back of the case.

Scale ranges of 0 ... 16 mbar to 0 ... 25 bar [0 ... 0.23 to 0 ... 363 psi] ensure the measuring ranges required for a wide variety of applications.

Differential pressure gauge
  • Differential pressure gauge
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