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Barksdale Series B1S, B2S, B1T, B2T Bourdon Tube Switch

Bourdon Tube Switch
Series B1S, B2S, B1T, B2T

• High accuracy
• High proof pressure up to 24,000 psi
• Tamper-proof external adjustment
• Single and dual switching capability
• Water tight housing versions available (NEMA 4)

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7
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Table 1H
HHermetically sealed limit switch option (requires AA, CC, GH or HH limit switch)
Table 2SERIES
B1TSingle Setpoint Housed
B2TDual Setpoint Housed
B1SSingle Setpoint Stripped
B2SDual Setpoint Stripped
Table 3Limit Switch
-A10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (standard for pressure range 12, 48, 65, 120 and 180)
-B10 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC
-H10 amps @ 125/250/480 VAC; 0.1 amps @ 125VDC; 0.05 amps @ 250 VDC
-J10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (comes with an elastomer boot)
-M10 amps @ 125/250 VAC; 3 amps @ 480 VAC; 0.5 amps @ 125 VDC; 0.25 amps @ 250 VDC
-S15 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC (adjustable differentials)
-GH1 amp @ 125 VAC with Gold Contacts
-AAHermetically sealed; 4 amps @ 125/250 VAC
-CCHermetically sealed; 10 amps @ 125/250 VAC
-GHHermetically sealed; 1 amp @ 125 VAC with Gold Contacts
-HHHermetically sealed; 5 amps @ 125/250 VAC
Table 4Pressure Range
Adjustable Range
Decreasing - psi (bar) Increasing - psi (bar)
Min Min psi-(bar) psi (bar)
1250 (3.4) 70 (4.8) 11 - 27 (0.7 - 1.8) 1500 (103)
32160 (11) 199 (13.5) 16 - 39 (1.1 - 2.7) 4000 (275)
48240 (16) 325 (21.7) 40 - 85 (2.7 - 5.8) 6000 (414)
65325 (22) 440 (29.9) 54 - 115 (3.7 - 7.8) 8125 (560)
120600 (41) 1150 (78) 275 - 550 (18.7 - 37.4) 15000 (1034)
180600 (41) 1150 (78) 275 - 550 (18.7 - 37.4) 20000 (1379)
Table 5SS
SSStainless steel bourdon tube
Table 6Process Connection
-P41/4” NPT Female (available on 65, 120, and 180 ranges only)
Table 7Options
-CSUL & CSA Approval (only available with B1T & B2T)
-FXNEMA 4X enclosure (only available with B1T & B2T)
-Z1Cleaned for oxygen service
-TCTemperature cycling and stabilization
-WxxxExtra wire length (XXX = inches)
-SxxxFactory preset (consult factory)

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