Explosion Proof Pressure Switches

The process instrumentation industry standards define devices rated “explosion proof” as those with an enclosure capable of containing an explosion of a specified gas, vapor or dust which may occur within it. Agency listings are required in order to market any pressure switch device as “explosion proof.” See below for our selection of explosion proof pressure switches. 

805QS
805QS Pressure Switch-Transmitter
Models: 805QS
Ranges: 0-5 psi to 0-30,000 psi (5:1 turndown)
Certifications: Unit: ATEX, CRN, Dual Seal (Canada), FM (US and Canada), INMETRO
Warranty: 3 Years
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Adjustable Dead Band Explosion Proof Pressure Switch
Models: V3
Ranges: 5 to 1750 psi
Certifications: Unit: CSA, SIL; Snap Switch: ATEX, CSA, TestSafe (SAA), UL
Warranty: 3 Years
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Big Hermet – Explosion Proof, Hermetically Sealed, Pressure Switch
Models: Big Hermet
Ranges: 30 in Hg VAC to 7000 psi, 1 bar VAC to 480 bar
Certifications: Unit: RTN, SIL, UL/CSA; Snap Switch: UL/CSA, TestSafe (SAA)
Warranty: 3 Years
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Bourdon Tube – Explosion Proof Pressure Switch
Models: 401LC, 401TA
Ranges: 1000 to 10,000 psi
Warranty: 3 Years
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Dual Hi-Lo – Explosion Proof Sealed Pressure Switch
Models: V2
Ranges: 30 in Hg VAC to 4000 psi, 1 bar VAC to 275 bar
Certifications: Unit: CSA, RTN, SIL; Snap Switch ATEX, Testsafe(SAA), UL/CSA
Warranty: 3 Years
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Explosion Proof Pressure Switch
Models: L, LC, S, SC, TA
Ranges: 30 in Hg VAC to 7000 psi, 1 bar VAC to 480 bar
Certifications: Unit: INMETRO, RTN, SIL, UL (as an outlet box)
Warranty: 3 Years
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Explosion Proof Pressure Switch UL/CSA/ATEX
Models: B3
Ranges: 30 in Hg VAC to 7000 psi, 1 bar VAC to 480 bar
Certifications: Unit: ATEX, GOST, INMETRO, RTN, SIL, UL/CSA
Warranty: 3 Years
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Mini-Hermet – Explosion Proof Pressure/Compound Pressure Switch
Models: Mini-Hermet
Ranges: 30 in Hg VAC to 7000 psi, 1 bar VAC to 480 bar
Certifications: Unit: ATEX, UL/CSA, GOST, INMETRO, RTN, SIL; Snap Switch: ATEX, TestSafe (SAA), UL/CSA
Warranty: 3 Years
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Pivot Seal – Explosion Proof Pressure Switch
Models: Various
Ranges: 100 to 7000 psi (7 to 480 bar)
Certifications: Unit: ATEX, RTN, SIL, UL/CSA; Snap Switch: ATEX, TestSafe (SAA), UL/CSA
Warranty: 3 Years
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Sub Mini Hermit Hermetically Sealed Explosion Proof Pressure Switch
Sub Mini Hermet – Explosion Proof Pressure Switch
Models: Sub Mini Hermet
Ranges: 8 to 200 psi, 0.5 to 14 bar (adjustable); 0.6 to 500 psi, 0.4 to 35 bar (factory set)
Certifications: Unit: RTN, SIL; Snap Switch: ATEX, TestSafe (SAA), UL/CSA
Warranty: 3 Years
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Explosion proof pressure switches that are built to last

  • Stainless steel, aluminum and cast iron housings available
  • Precise quality standards from raw materials to finished explosion proof switch

Wide range of standard models

  • SOR has a wide variety of explosion proof switches for most applications
  • Explosion proof housing enclosures
  • Explosion proof hermetically sealed switch capsules

Meets explosion proof requirements

  • Hermetically sealed switch capsules are UL listed, CSA certified, ATEX and TestSafe (SAA) approved as an explosion proof snap switch
  • Explosion proof ratings for the most extreme locations

Safety Certified to IEC 61508 (SIL)

  • Most models meet requirements for non-redundant use in SIL1 and SIL2  Safety Instrumented Systems

Engineered to order

  • Every SOR explosion proof pressure switch can be custom made to your exact specifications – talk to a factory Sales Engineer or your local Representative

Our Explosion Proof Pressure Switches are Simple to use

  • Installs without the need for special tools
  • Set it and forget it reliability
  • No charge for factory calibration
  • Self-locking set point adjustment
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