Alutal Measure & Trust

J21K Series

Differrential Pressure Switch 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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The product

Overview

  • Rugged, NEMA 4X, epoxy coated enclosure
  • SPDT switch output
  • Welded 316 stainless steel or brass sensors
  • Unique isolated sensor design
  • Adjustable ranges:
    • 30 “Hg Vac to 90 psid
    • 1 bar Vac to 6,2 bar d
  • UL listed and cUL certified
  • Optional ATEX or GOST intrinsic safety compliance
  • Designed to meet Enclosure Type 4X
  • SPDT switch output
  • Adjustable deadband option for precise on-off control
  • Brass or welded stainless steel bellows sensors
  • External manual reset option

Highlights

  • 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
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100%

Energy self-sustainable

+4500

Customers around the world

ISO 9001

Certified since 2006

+5000

Parts delivered monthly

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