SOR hermetically sealed temperature switches are your choice for applications that are susceptible to harsh process environments and where disrupted functionality could cause a catastrophic outcome. The snap switch is protected in a sealed housing from salt air, hydrogen sulfide and other corrosive agents and atmospheres that might cause contact deterioration and switch failure.

 

Unparalleled repeatability

  • Hermetically sealed snap switches
  • Ranges from -50° to 1000° F
  • High overrange

A temperature switch to fit your application

  • SOR has a hermetically sealed temperature switch to fit most any application where protection from the elements or corrosive environments is vital to your process

Engineered to your specifications

  • Every SOR hermetically sealed temperature switch can be customized to your exact specifications – talk to your factory Sales Engineer or local Representative

Built tough and simple to use

  • Precise quality standards from raw materials to finished switch
  • Easy to install
  • Set point adjustment without declassification of hazardous area

Big Hermet – Hermetically Sealed Temperature Switch

Big Hermet – Hermetically Sealed Temperature Switch

Models: Big Hermet
Ranges: -50° to 1000°F, -45° to 540°C
Certifications: Unit: INMETRO, RTN, SIL; Snap Switch: TestSafe (SAA), UL/CSA
Warranty: 3 Years

The SOR hermetically sealed Big Hermet is designed to keep harsh conditions out so the chance of corrosion and instrument failure is minimized. It uses a vapor-pressure thermal system design to sense temperature changes and activates/deactivates a diaphragm/piston assembly. This versatile temperature snap switch works in a wide variety of process media and industrial applications and is available with maximum explosion proof rating.

  • Hermetically sealed snap switches
  • Ranges from -50° to 1000°F, -45° to 540°C
  • Set point adjustment with calibrated scale
  • Set point adjustment without declassification of hazardous area

Datasheet

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Dual Hi-Lo – Hermetically Sealed Temperature Switch

Dual Hi-Lo – Hermetically Sealed Temperature Switch

Models: V2
Ranges: -50° to 1000°F, -45° to 540°C
Certifications: Unit: INMETRO, RTN, SIL; Switch: ATEX, UL/CSA, TestSafe (SAA)
Warranty: 3 Years

The SOR hermetically sealed, Dual Hi-Lo temperature switch is ideal for explosion proof applications and/or those applications that require protection of the switch contacts. It operates on a vapor-pressure thermal system and a sensing bulb that activates/deactivates a piston diaphragm according to the process temperature.

The hermetically sealed Dual Hi-Lo switch incorporates two separate sensing assemblies and two separate set points with two separate switch outputs for settings at minimum and maximum temperatures.

It is field adjustable making it a convenient choice for just about any industry application in a non-hazardous situation.

  • Ranges from -50° to 1000°F
  • 316 SS temperature sensing bulbs
  • Remote sensing bulb is optional
  • Minimal ambient temperature influence
  • AC or DC electrical service

Datasheet

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Mini-Hermet – Hermetically Sealed Temperature Switch

Mini-Hermet – Hermetically Sealed Temperature Switch

Models: Mini-Hermet
Ranges: -50° to 1000°F, -45° to 540°C
Certifications: Unit: ATEX, GOST, INMETRO, RTN, SIL; Snap Switch: ATEX, TestSafe (SAA), UL/CSA
Warranty: 3 Years

The SOR hermetically sealed Mini-Hermet temperature switch is your “tight space” alternative to the Big Hermet. It is designed to keep harsh conditions and atmospheres from potentially causing instrument failure. It uses a vapor-pressure thermal system design to sense temperature changes and activates/deactivates a diaphragm/piston assembly. This versatile temperature snap switch works in a wide variety of process media and industrial applications – especially where space is limited.

  • Hermetically sealed stainless steel snap switches
  • Ranges from -50° to 1000°F, -45° to 540°C
  • Set point adjustment without declassification of hazardous area
  • Worldwide agency listings

Datasheet

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Certifying Agencies

ATEX (certified by Baseefa, DEMKO, or KEMA)

CE

CSA

FM

GOST

IECEx (certified by Baseefa or Standards Australia)

INMETRO

PESO (CCOE – India)

TIIS

KOSHA

Rostechnadzor (RTN)

SIL, TestSafe (SAA – Australia)

SASO

UL

Available Listings

Ordinary Locations and Hazardous Locations
SIL Level Switch Certificate
SIL Pressure Switch Certificate

Available Hazardous Locations Protection Methods

Explosion Proof/Flameproof (d)
Intrinsic Safety (ia)
Encapsulation (m)
Special Protection (s)
Combustible Dust (tD)
Energy Limited (nL)

Division 1, Division 2
Class I, Class II, Class III
Groups A-G

IECEX
saso
INMETRO
kosha
gost
PESO
Testsafe
atex-certification
FM-Approval
ul certification
TIIS
csa