SCH-27 Pressure Switch

Brand: KOBOLD Instruments, Inc.

These diaphragm pressure switches are IP 65, and suitable for a variety of applications such as: food industry, cannery, pharmaceutical, petrochemical, conventional and nuclear power station, and they withstand the most unfavorable working conditions, caused by either the process fluid aggressiveness or high ambient temperature.

The sensing element is a metallic diaphragm and acts directly on the microswitch through a self-centering pivot. The simplicity of the design, without levers, cams or similar mechanism, gives the unit an exceptionally long working life.

Specifications

Adjustment Type

  • Internal, Micrometric Adjustable

Ambient Temperature Range

  • -25° to 65° C (-13° to 149° F)

BSP Connection

  • G 1/2" Male

Cover Material

  • 304 Stainless Steel, Bayonet Lock

Diaphragm Material

  • 316 Stainless Steel
  • Carbon Steel Diaphragm Covered with AISI 316 Stainless Steel
  • PTFE

Electrical Connectors

  • 1 × External - Earth Contact
  • 1 × Internal - Earth Contact
  • M20×1.5
  • Terminal Strip

Electrical Rating

  • 0.1 A at 24 Vdc
  • 15 A at 125 Vac
  • 15 A at 250 Vac
  • 20 A at 125 Vac
  • 20 A at 250 Vac
  • 6 A at 24 Vdc

Environmental Protection

  • IP65 as Per IEC 529

Gasket Material

  • PTFE

Materials of Construction

  • AISI 304 Stainless Steel, etched - Tag

Mounting

  • 2" Stake's Mounting Bracket

NPT Connection

  • 1/2" 14 Female NPT
  • 1/2" NPT Male
  • 1/4" 18 Female NPT
  • 1/4" NPT Male

Pressure Range

  • psi: 58.0151 to 2320.6 (kPa: 400 to 16000, bar: 4 to 160) - Carbon Steel Diaphragm
  • Up to psi: 36.2594 (kPa: 250, bar: 2.5) - AISI 316 Stainless Steel Diaphragm

Process Connection Material

  • 316 Stainless Steel

Process Temperature

  • 100° C (212° F) - Maximum

Repeatability

  • ≤ 1 %

Switch Type

  • 1 to 2 SPDT Microswitches
  • Adjustable Differential, Double
  • Adjustable Differential, Single
  • Gold-Plated & Insert Gas Filled, Double
  • Gold-Plated & Insert Gas Filled, Single
  • Gold-Plated, Double
  • Gold-Plated, Single
  • Inert Gas Filled, Double
  • Inert Gas Filled, Single
  • Insert Gas Filled Vdc, Double
  • Insert Gas Filled Vdc, Single
  • Standard, Double
  • Standard, Single

System Pressure

  • bar: 185
  • kPa: 18,500
  • psi: 2,683

Thermal Drift

  • ≤ 0.05 %/°C (≤ 0.027 %/°F)

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