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Air Pressure Proving Switches

Our industrial/commercial grade pressure proving switches are made from a die cast aluminum body and contain no plastic or stamped tin parts. They are made to last. They will not crumble, crack, dent or corrode. It is not uncommon for these switches to be operational for 40 years.

Our switches are used to detect small air pressures, vacuums or changes in air pressure. Can be used to prove airflow in burners, detect dirty air filters, verify duct pressures among many other applications.

Custom calibration and configuration is available for free. Pricing is very competitive for volume purchases. Use in applications where a switch failure is not desired. Made in USA. UL and CSA certifications are available. Call us for your special needs. If you need special pricing, email us at sales@beccontrols.com

You can't go wrong with a BEC Controls Air Proving Switch.

If you already have the switch part number, select "replacement" below.


Order a Replacement R70 or 50 Series Air Pressure Proving Switch - You already have the part number
$130.00
Use the selection boxes to enter the part number from the label on your switch.

Example: R74-C1-CG-22

PREFIX: NONE
BASE NUMBER: R74-
SUFFIX(Type this in the text box): C1-CG-22



Order a Replacement 900 or 800 Series Air Pressure Proving Switch - You already have the part number
$150.00
Use the selection boxes to enter the part number from the label on your switch.

Example: A902-1P-B1B4-82

PREFIX: NONE
BASE NUMBER: A902-
SUFFIX(Type this in the text box): 1P-B1B4-82



R74 Air Pressure Proving Switch - CREATE SWITCH FOR NEW APPLICATION
$130.00
DIFFERENTIAL, GAUGE PRESSURE OR VACUUM SWITCH
  • Pressure range from 0.2" W.C. TO 22" W.C.
  • Up to 10 Amp, 480 VAC Ratings
  • Weather tight or panel mount housing options
  • Custom Set Point and Features
  • Optional foot mount, fittings and port orientation
  • UL and CSA approval options
  • Screw Terminals, SO cord or MTW wire with conduit adapter for easy termination
  • -65F to 165F Temperature Range
  • 1/8" NPT female standard ports

    Part number: R74-xxx-xxx

  • R70 Air Pressure Proving Switch - CREATE SWITCH FOR NEW APPLICATION
    $130.00
    DIFFERENTIAL, GAUGE PRESSURE OR VACUUM SWITCH
  • Pressure range from 0.6" W.C. TO 22" W.C.
  • Up to 15 Amp, 480 VAC Ratings
  • Weather tight or panel mount housing options
  • Custom Set Point and Features
  • Optional foot mount, fittings and port orientation
  • UL and CSA approval options
  • Screw Terminals, SO cord or MTW wire with conduit adapter for easy termination
  • -65F to 165F Temperature Range
  • 1/8" NPT female standard ports

    Part number: R70-xxx-xxx

  • R72 Air Pressure Proving Switch - CREATE SWITCH FOR NEW APPLICATION
    $130.00
    DIFFERENTIAL, GAUGE PRESSURE OR VACUUM SWITCH
  • Pressure range from 0.15" W.C. TO 22" W.C.
  • Up to 10 Amp, 480 VAC Ratings
  • Weather tight or panel mount housing options
  • Custom Set Point and Features
  • Optional foot mount, fittings and port orientation
  • UL and CSA approval options
  • Screw Terminals, SO cord or MTW wire with conduit adapter for easy termination
  • -65F to 165F Temperature Range
  • 1/8" NPT female standard ports

    Part number: R72-xxx-xxx

  • A902 Air Pressure Proving Switch - CREATE SWITCH FOR NEW APPLICATION
    $150.00
    DIFFERENTIAL, GAUGE PRESSURE OR VACUUM SWITCH
  • 0.05" to 22" Water Column setpoint range
  • 10 Amp, 125/250/480 VAC Ratings
  • Weather tight housing
  • Custom Set Point and Features
  • Optional foot mount, fittings and port orientation
  • UL and CSA approval options
  • MTW wire with conduit adapter for easy wiring
  • -65F to 165F Temperature Range
  • 1/8"NPT, 1/4"NPT or Custom Ports

    Part number: A902-1x-xxxx-xxx

  • A900 Air Pressure Proving Switch - CREATE SWITCH FOR NEW APPLICATION
    $150.00
    DIFFERENTIAL, GAUGE PRESSURE OR VACUUM SWITCH
  • 0.35" to 22" Water Column setpoint range
  • 15 Amp, 125/250/480 VAC Ratings
  • Weather tight housing
  • Custom Set Point and Features
  • Optional foot mount, fittings and port orientation
  • UL and CSA approval options
  • MTW wire with conduit adapter for easy wiring
  • -65F to 165F Temperature Range
  • 1/8"NPT, 1/4"NPT or Custom Ports

    Part number: A900-1x-xxxx-xxx
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