Model 732.25

Differential Pressure Gauges

Membrane Sensing Element

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  • For use in measurement applications requiring high differential / static process pressures
  • For corrosive environments with either liquid or gaseous media

Product features

  • External zero point adjustment
  • Membrane sensing element
  • Black powder coated aluminum case
  • 3000 psid maximum working pressure
  • Differential pressure ranges to 600 psid


Nominal Sizes
4½" (115 mm)
6" (160 mm)

Accuracy (on increasing pressure)
± 1% of span

Scale Ranges
0/100" H2O through 0/600 psid
(250 mbard through 40 bard)

Maximum Safe Working Pressure
(Overpressure Safety)
3000 psig (200 barg)

Operating Temperature
Ambient: -40°F to +200°F (-40°C to +93.3°C)
Media: max +100°C (+212°F)

Weather protection

Pressure connections
1/4" NPT female, back connection (panel mounting only; wall & pipe mounting bracket is not compatible with back connection).

1/4" NPT female, top & bottom.
1/2" NPT female, back connections with adapters (panel mounting only; wall & pipe mounting bracket is not compatible with back connection).
1/2” NPT female, dual connections, top and bottom with adapters.

Pressure connection markings
(+) High side connection; (-) Low side connection

Sensing Element (Wetted Parts)
Housing: 316L stainless steel
Membranes: Inconel® 718 (NiCr-alloy)/316L stainless steel
O-rings: Viton
NACE MR-01-75 compliant

Stainless steel

System Fill
Silicone Oil

Dial Case
Black powder-coated aluminum

Bezel Ring
Stainless steel polished

White aluminum with black lettering - standard

Black aluminum


Standard Scale

Zero Adjustment
External through top of case (allen wrench included)

Dial Case Filling
Glycerine 99.7% (Changes to Model 733.25)
Other filling fluids available as an option

Panel mounting kit is included. Wall or pipe mount kit is available as an option, but is only compatible with the top/bottom connection.

Seven (7) years limited

Differential Pressure Gauges<br>
Model 732.25

Differential Pressure Gauges
Model 732.25

  • Differential Pressure Gauges<br>
Model 732.25
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