The 12 Series hazardous location pressure switch is ideal for operation in tough applications where space is at a premium. A snap-action Belleville spring assembly is used to provide vibration resistance and prolonged switch life. The 316 stainless steel enclosure and hermetically sealed switch provide rugged protection from the environment. Approved for use in hazardous locations worldwide, the 12 Series is installed within applications ranging from offshore oil rigs to rotating equipment, and more.

Key Facts

  • Class 1, Divisions 1 & 2, Zone 1
  • UL listed, cUL certified, ATEX flame-proof & CE (LVD, PED) compliant, dual seal compliance to ANSI/ISA 12.27.01
  • Compact, 316 stainless steel enclosure
  • Belleville spring design provides set-point stability and vibration resistance
  • SPDT or DPDT hermetically sealed switches
  • Variety of pressure sensor materials, including welded stainless steel diaphragm
  • Convenient field adjustment through concealed adjustment compartment; optional cover locking ring prevents incidental tampering
  • 72” lead-wire with strain relief provided
  • Adjustable set-point ranges:
    • Pressure: 1 to 12,500 psi, 0,1 to 861,9 bar
    • Differential Pressure: 0.7 “wcd to 150 psid, 1,7 mbar to 10,3 bar
    • Temperature: -90 to 343.3 ºC (-130 to 650 ºF)

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