Mini-Hermet – Hermetically Sealed Pressure/Compound Pressure Switch

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Mini-Hermet - Hermetically Sealed Pressure/Compound Pressure Switch




30 in Hg VAC to 7000 psi, 1 bar VAC to 480 bar


Unit: ATEX, INMETRO, SIL, UL/CSASnap Switch: ATEX, TestSafe (SAA), UL/CSA

Like its big brother the Big Hermet, the sensing assembly of the Mini-Hermet pressure/compound pressure switch is based on the conventional Static O-ring® type that SOR pioneered in the industry more than 50 years ago. The pressure-switching element assembly is hermetically sealed in a stainless steel capsule and the maximum explosion-proof rating is provided.

The small, compact size of the SOR Mini-Hermet sealed switch makes it extremely popular in offshore oil and gas fields because it is corrosion-resistant and it doesn’t require much space on the skids.

  • Hermetically sealed snap switches
  • Ranges from 30 in Hg vacuum to 7000 psi
  • Set point adjustment without declassification of hazardous area
  • Worldwide agency listings

Power Plant 101

Mini-Hermet Pressure Switches

Safety Integrity Level (SIL) Short Training

INMETRO Certification

Pressure Switch Features

Pressure Switch Operating Principles