Model 712.25DX

Duplex Pressure Gauges

Copper Alloy Wetted Parts, Aluminum Case, Bourdon Tube Series

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  • Measurement and indication of two applied pressures
  • For non-corrosive, non-crystallizing gaseous and liquid media
  • Heating ventilation and air conditioning (HVAC)

Product Features

  • Duplex indication with separate black and red pointer
  • Economical and rugged design
  • Scale ranges from 0...15 psi (1 bar)
  • Available in 4½" (115 mm) and 6" (160 mm)


4½" & 6"

+ 2/1/2% of span
(ASME B40.1 Grade A)

Pressure from 0/15 psi (1 bar) to 0/1000 psi (70 bar)

Working Range
Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: 1.3 x full scale value

Operating Temperature
Ambient: -4oF to 140oF (-20oC to 60oC)
Media: max. 140oF (+60oC)

Temperature Error
Additional error when temperature changes from reference temperature of 68oF (20oC) +0.4% of span for every 18oF (10oK) rising or falling.

Weather Protection
NEMA 2 (IP 33)

Material: copper alloy
Lower mount (LM) only
2 x 1/4" NPT
Each side marked with ⊕ or ⊖

Bourdon Tube
Material: copper alloy

Copper alloy, dual

White aluminum with black lettering.

Material: aluminum
1 black and 1 red non-adjustable pointers

Black cast aluminum with built-in rear flange

Instrument glass

Threaded Ring
Black aluminum

Operating Principle
The right connector (marked plus "+" operates the red pointer. The left connector (marked minus "-") operates the black pointer

Duplex Pressure Gauges <br>
Model 712.25DX

Duplex Pressure Gauges
Model 712.25DX

  • Duplex Pressure Gauges <br>
Model 712.25DX
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