+ Level
+ Flow
+ Analytical
+ Process
+ Pressure
+ Temperature
Physical Address:
28 Hobill Ave
Manukau City

Postal Address:
PO Box 97036
Manukau City 2241
New Zealand

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21 series

The J21K differential pressure switch monitors the difference between two system pressures or vacuums, senses excessive flow deviation, or verifies that a filter is clogged. It is designed with two separate, opposing sensors which are connected by a rod to actuate the snap switch.
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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21 series