Differential Pressure Switch

Manufacturer's part number :

J21K series

Manufacturer United Electric

United Electric Controls

Description :

The J21K differential pressure switch monitors the difference between two system pressures or vacuums and senses excessive flow deviation, or verifies that a filter is clogged.

The J21K's rugged design - with epoxy coated enclosure and sealed metal bellows - lends itself to exacting applications. Widely used in refrigeration (chiller) and compressor applications, the J21K can be used for filter status monitoring and proof of flow.

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  • Sealed Metal Bellows Sensors
  • Welded 316 Stainless Steel Sensors
  • Gasketed Die-Cast Aluminum Enclosure with Epoxy Coating
  • Single Switch Output
  • Adjustable Ranges: 30 "Hg Vac to 90 psid (-1 to 6 bar)
  • Designed to meet Enclosure Type 4X (with watertight conduit fitting)
  • UL listed and cUL certified
  • Optional ATEX and Rostechnadzor (GOST-R) intrinsic safety compliance
  • Optional adjustable deadband
  • Single switch output
  • Opposing bellows design