Phosphor bronze bellows with 1/4" NPT (female) pressure connections. Adjustable Set Point Range: 0 to 25 PSIG / 0 to 1,7 bar. Deadband: 0.6 to 1 psi / 41.4 to 68.9 mbar. Differential Proof Pressure: 25 psid / 1,7 bar. Working Pressure: 30 "Hg Vac to 110 psi / -1 to 7,6 bar (*Working Pressure Range: The pressure range within which two opposing sensors can be safely operated and still maintain set point adjustability). 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. FEATURES: 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. SPECIFICATIONS: Storage temperature -65 to 160°F (-54 to 71°C). Ambient temperature limits: -40 to 160°F (-40 to 71°C); Set point typically shifts less than 1% of range for a 50°F (28°C) ambient temperature change. Set point: repeatability ±1% of full scale range. Shock Set point repeats after 15 G, 10 millisecond duration. Vibration Set point repeats after 2.5 G, 5-500 Hz. Enclosure Die cast aluminum, epoxy powder coated, gasketed. Enclosure: classification Designed to meet enclosure type 4X requirements with M900 option (watertight conduit fitting). Switch output One SPDT snap action switch; switch may be wired "normally open" or "normally closed". Electrical rating 15 A 125/250/480 VAC resistive. Electrical switches have limited DC. capabilities. Consult factory for additional information. Weight Approximately 2 lbs. (0.90 kg.). Electrical connection 7/8" diameter conduit hole. Pressure connection Models 127-150, 232-254, 357, 16020: 1/4" NPT (female). United Electric. United Electric. J21K-232.
B2E Surplus offers a 90-day warranty on all sales. Warranted to be free from defects in materials and workmanship under normal use and service. Unless otherwise set forth in a quotation or agreed to by B2E Surplus in writing, standard Products are warranted for 90 days from the date of delivery to the buyer.
Subject to the exclusions described below, all B2E Surplus products (Products) are warranted to be free from defects in materials and workmanship under normal use and service. Unless otherwise set forth in a quotation or agreed to by B2E Surplus in writing, standard Products are warranted for 90 days from the date of delivery to the buyer.
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