Barksdale Technology Data - B1T B2T User Manual - Specifications and Instructions
Summary
These high-accuracy Bourdon Tube Pressure Switches are critical components for industrial process control systems, featuring robust performance across wide adjustable ranges up to 950 bar. Designed for demanding fields—including power plants, die-casting, and press control—they offer intrinsically safe options and stainless steel construction. This comprehensive guide details the technical specifications, electrical ratings (AC/DC loads), hysteresis types, and precise ordering codes required for engineers selecting optimal automation switches for reliable industrial monitoring.
Page 1 Text Content
Index: E / 923-1497
Type B1T / B2TBourdon Tube Pressure Switches
Mechanical single/dual pressure switch
Repeatability ±1.0 % at constant temperature
Features
Bourdon tube pressure switch
All welded parts wetted.
Direct acting, no friction, high accuracy
Adjustment ranges
4.8 ... 950 bar
Applications
Pump control,
Die-casting machines,
Press control,
Power plants,
Alarm functions
Technical Data
Wetted parts: Electrical ratings and A large variety of micro switches
Process connection: Stainless steel 1.4401 hysteresis: offers different electrical ratings and
hysteresis for many applications.
Bourdon tube: Stainless steel 1.4401
Weight: B1T-...: approx. 1.1 kg
Repeatability: ±1 % at constant temperature
B2T-...: approx. 1.2 kg
Switching rate: max. 20/min
Set point adjustment: Turn the adjustment screw clockwise
Temperature range: -40 °C... +75 °C to decrease the set point
Protection class: IP65 Intrinsically safe: The switches are designed for
intrinsically safe applications. Please
Housing: Aluminium, anodized
add "Exi" to your ordering details
Process connection: 1/4" NPT female thread except ranges when placing an order. To comply
marked with *). These switches have with the intrinsically safe approval
proof pressures above 500 bar and following max. ratings must not be
are provided with high pressure exceeded:
thread with adapter "G1/4 female". Umax = 28 V
Imax = 50 m A
Electrical connection: Internal terminal strip (0.5 ... 2.5 mm2)
Standard: WAGO terminal and Approval:
cable gland M20 x 1,5
Pressure Ranges
Pressure range Adjustment range [bar] Max. operating Proof pressure Max. hysteresis of switch types in
code pressure [bar] [bar] bar (end of range)
Increasing press. Decreasing press. (short term) H, GH [bar] M, GM [bar]
12SS 4.8 ... 82 3.4 ... 81 100. 120. 0.96. 1.86.
32SS 13.7 ... 220 11.0 ... 217 250. 330. 2.68. 5.44.
48SS 22.4 ... 330 16.5 ... 325 400. 500. 2.75. 5.90.
65SS* 30.3 ... 448 22.5 ... 440 550. 670. 3.58. 7.92.
120SS* 79.3 ... 827 41.4 ... 790 900. 16.90. 37.90.
180SS 79.3 ... 950 41.4 ... 950 999. 16.90. 37.90.
Subject to technical changes.Barksdale 1
Page Summary Contents For Barksdale Technology Data - B1T B2T User Manual - Specifications and Instructions
Manual Details
| Brand | Barksdale |
|---|---|
| Pages | 2 |
| File Size | 859.11 KB |
| Published | May 16, 2026 |
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Frequently Asked Questions
What are the operating temperature limits for these switches?
The temperature range is -40 °C to +75 °C.
How is the pressure set point adjusted?
Turn the adjustment screw clockwise to decrease the set point.
Are these switches suitable for intrinsically safe environments?
Yes, they are designed for intrinsically safe applications and can be ordered with 'Exi' for approval.
What material is used for the pressure connection threads?
The process connection uses Stainless steel 1.4401.