Dwyer 2001


Gauge, Differential

2001 78738
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Gauge, Differential


ItemDifferential Pressure Gauge
Scale TypePressure
Differential Pressure Range0 to 1" H2O
Pressure Range Minor Div.0.02" H2O
Rated Total Pressure-20" Hg to 15 psi
Full Scale Accuracy (%)+/-2
Connection Size NPT (In.)1/8
Dial Size (In.)4
Ambient Operating Range (F)20 Degrees to 140 Degrees
Includes Instructions, Two 1/8" NPT Plugs, Two 1/8" NPT to 3/16" I.D. Rubber Tubing Adapters and Three Mounting Adapters with Screws
Manufacturers Warranty Length1 Year
Connection Size1/8" NPT
Dial Size4"
Body MaterialDie Cast Aluminum
Weight 1.500000


Differential Pressure Gauge, Pressure Range 0-1.0 Inches WC, Pressure Range Minor Divisions 0.02, Rated Total Pressure -20 Inches Hg to 15 PSIG

  • Note: 1 psi = 27.71" WC.

Differential Pressure Gauges Magnehelic
  • Magnehelic gauges feature high resistance to shock and vibration. Include two 1/8" NPT plugs, two 1/8" NPT to 3/16" I.D. rubber tubing adapters, and 3 mounting adapters with screws.
  • Die-cast aluminum case 4" dial Plastic window
  • Differential Pressure Gauges
  • Versatile gauges measure fan and blower pressure, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems, and fluid amplifier/fluidic system pressure. Indicate low air or gas pressure positive, negative (vacuum), or differential.
  • 1/8" NPT side and rear pressure connections

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