Barksdale Diaphragm Switches

B1X, B2X Bourdon Tube Explosion Proof

Barksdale’s B1X and B2X Explosion Proof Bourdon Tube Pressure Switches offer instrument class accuracy, making them an ideal solution to your hazardous location 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 circuit 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, Barksdale Bourdon Tube Pressure Switches are the ideal solution.
Bourdon Tube Explosion Proof
Explosion Proof Housing
High Accuracy
Dual Switching Capability
High Reliability
ATEX Approved
Optional Adjustable Deadband
NEMA 4, 7 & 9
 
 
 
   
Adjustment Instructions
Supplemental Guide
Data Sheet
 
Single Setpoint Switches
Prefix Price 
- Standard -
H Hermetically sealed limit switch option - Class I, Division II (requires AA, CC or HH limit switch) $50.00
Series  
B1X Single setpoint $500.00
Limit Switch
-A 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (standard for pressure range 12, 32, 48 and 72) $17.00
-B 10 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC $17.00
-C 10 amps @ 125/250/480 VAC; 0.1 amps @ 125VDC; 0.05 amps @ 250 VDC $17.00
-H 10 amps @ 125/250 VAC; 3 amps @ 480 VAC (standard with pressure range 20) $17.00
-J 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (comes with an elastomer boot) $53.25
-M 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; 0.5 amps @ 125 VDC; 0.25 amps @ 250 VDC $17.00
-S 15 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC (adjustable deadband) $25.00
-GH 1 amp @ 125 VAC with gold contacts $25.00
-AA Hermetically sealed; 4 amps @ 125/250 VAC $100.00
-CC Hermetically sealed; 10 amps @ 125/250 VAC $100.00
-GH Hermetically sealed; 1 amp @ 125 VAC with gold contacts $100.00
-HH Hermetically sealed; 5 amps @ 125/250 VAC $100.00
Pressure Range
  Adjustable Range Approx. Deadband2
(Actuation Value)
Proof Pressure  
Decreasing - psi (bar) Increasing - psi (bar)
Min Max Min Max psi-(bar) psi-(bar)
12 50 (3.3) 1173 (78) 77 (5.1) 1200 (80) 11 - 27 (.7 - 1.8) 1800 (120) $15.00
20 160 (10.6) 1961 (131) 199 (13) 2000 (133) 16 - 39 (1.1 - 2.6) 4800 (320) $15.00
32 240 (16) 3115 (208) 325 (22) 3200 (213) 40 - 85 (2.7 - 5.7) 7200 (480) $5.00
48 325 (22.4) 4715 (321) 325 (22) 4800 (327) 40 - 85 (2.7 - 5.7) 7200 (480) $5.00
72 600 (40) 6650 (443) 6650 (443) 7200 (480) 275 - 550 (18 - 37) 18000 (1200) $235.00
 
SS Stainless steel bourdon tube $35.00
Process Connection
- 1/4” NPT for 12, 20 & 32 pressure ranges & 1/4” tube for 48 - 72 pressure ranges (standard) -
-P23 1/2” NPT female pressure fi tting $145.00
Option
-UL UL & CSA approval (standard) $10.00
-EX ATEX certifi ed, -EX inplace of -UL for ATEX only $60.00
-Sxxx Factory preset (XXX = inches) [$/foot] (Contact FLW)
$5.00
 
Configured model number : - B1X -A 12 SS -
Configured price : $567.00*
 
 
Dual Setpoint Switches
Prefix Price 
- Standard -
H Hermetically sealed limit switch option - Class I, Division II (requires AA, CC or HH limit switch) $50.00
Series  
B2X Single setpoint $600.00
Limit Switch
-A 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (standard for pressure range 12, 32, 48 and 72) $34.00
-B 10 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC $34.00
-C 10 amps @ 125/250/480 VAC; 0.1 amps @ 125VDC; 0.05 amps @ 250 VDC $34.00
-H 10 amps @ 125/250 VAC; 3 amps @ 480 VAC (standard with pressure range 20) $34.00
-J 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; (comes with an elastomer boot) $106.50
-M 10 amps @ 125/250 VAC; 3 amps @ 480 VAC; 0.5 amps @ 125 VDC; 0.25 amps @ 250 VDC $34.00
-S 15 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; 0.03 amps @ 250 VDC (adjustable deadband) $50.00
-GH 1 amp @ 125 VAC with gold contacts $50.00
-AA Hermetically sealed; 4 amps @ 125/250 VAC $200.00
-CC Hermetically sealed; 10 amps @ 125/250 VAC $200.00
-GH Hermetically sealed; 1 amp @ 125 VAC with gold contacts $200.00
-HH Hermetically sealed; 5 amps @ 125/250 VAC $200.00
Pressure Range
  Adjustable Range Approx. Deadband2
(Actuation Value)
Proof Pressure  
Decreasing - psi (bar) Increasing - psi (bar)
Min Max Min Max psi-(bar) psi-(bar)
12 50 (3.3) 1173 (78) 77 (5.1) 1200 (80) 11 - 27 (.7 - 1.8) 1800 (120) $15.00
20 160 (10.6) 1961 (131) 199 (13) 2000 (133) 16 - 39 (1.1 - 2.6) 4800 (320) $15.00
32 240 (16) 3115 (208) 325 (22) 3200 (213) 40 - 85 (2.7 - 5.7) 7200 (480) $5.00
48 325 (22.4) 4715 (321) 325 (22) 4800 (327) 40 - 85 (2.7 - 5.7) 7200 (480) $5.00
72 600 (40) 6650 (443) 6650 (443) 7200 (480) 275 - 550 (18 - 37) 18000 (1200) $235.00
 
SS Stainless steel bourdon tube $35.00
Process Connection
- 1/4” NPT for 12, 20 & 32 pressure ranges & 1/4” tube for 48 - 72 pressure ranges (standard) -
-P23 1/2” NPT female pressure fi tting $145.00
Option
-UL UL & CSA approval (standard) $10.00
-EX ATEX certifi ed, -EX inplace of -UL for ATEX only $60.00
-Sxxx Factory preset (XXX = inches) [$/foot] (Contact FLW)
$10.00
 
Configured model number : - B2X -A 12 SS -
Configured price : $684.00*
 
 
 
Notes
  • 1 Consult sales drawings for specific deadband values
  • 2 Deadband values indicated when used with the "standard" limit switch
  • 3 Consult sales drawings for dimensions
  • 4 Pressure range subject to change
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