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Doger Technology Development, S.A.
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  2. UE Controls J21k series Differential pressure switch Model 357

UE Controls J21k series Differential pressure switch Model 357

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316L welded stainless steel bellows with 1/4" NPT (female) pressure connections.

The J21K Series is simple to install and operate for alarm, safety and emergency shutdown applications requiring a higher switch sensitivity. It monitors the difference between two system pressures or vacuum using sealed, opposing bellows sensors.

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    United Electric Controls
    Interruptores de presion, interruptores de temperatura, Termocuplas, RTDs, transmisores de temperatura y presioón, detección de gases

    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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    • 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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    UE Controls J21k series Differential pressure switch Model 357