Barksdale’s Bourdon Tube Pressure Switches offer instrument class accuracy, making them an ideal solution to your pressure control needs when accuracy is critical. Built-in over-travel stops allow for higher proof pressures than most other pressure switch technologies. Setpoints are easily adjusted via an internal adjustment screw. Available in single and dual configurations, Bourdon Tube Pressure Switches are adaptable for use in a wide range of industrial applications. A variety of limit switches is available to allow for a multitude of electrical switching conditions. For applications requiring a highly accurate switch in a highly durable package, Bourdon Tube Pressure Switches are the ideal solution


  • B1T-S32SS
SKU: B1T-S32SS Category: Tags: , , ,


General Specifications

Electrical Characteristics: All models incorporate Underwriters Laboratories, Inc. and CSA Listed single pole double throw snap-action switching elements.
Accuracy: ±1% of the adjustable range




Single pole double throw (SPDT) snap action; single or dual circuit

10 amp @ 125/250 VAC
3 amp @ 480 VAC
0.5 amp @ 24 VDC

Wetted Parts:

Process Fitting & Bourdon Tube:


316 series stainless steel
Anodized aluminum

Electrical Connection: Internal terminal strip via conduit connection
Enclosure Ratings: NEMA 4
Pressure Connection: Housed models with proof pressure up to 7,200 psi; 1/4″ NPT female; All higher pressure ranges: superpressure fitting for 1/4″ O.D. tube.

UL/CSA (optional):


UL File E42816
Class 3231 02; File No. 022355-0.000

Temperature Range:



-40° to +165°F (-40° to +74°C)

Adjustment Instructions: Remove protective hex cap to remove adjustment screw.
Turn main unit adjustment screw clockwise to lower setpoint, counterclockwise to raise setpoint.
For optional adjustable actuation value (deadband) models, set the desired DECREASING setpoint first and then turn microswitch adjustment wheel counterclockwise to increase the amount of deadband until the desired INCREASING setpoint is achieved.
Options: -UL/CSA approval (max rating 300 VAC)
-Temperature stabilization and pre-cycle
-Cleaned for oxygen service
Shipping Weight: 2.5 lbs. approximate


Wiring Code

Lead Circuit #1 Circuit #2
Normally Closed Blue Orange
Common Purple Brown
Normally Open Red Yellow


Housed Bourdon Tube Series B1T – Features / Application


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