United Electric Controls - J21K Series - NEMA 4 Differential Pressure Switch

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 United Electric Controls J21K Series; NEMA 4 Differential Pressure Switch; One SPDT Output; Internal Adjustment
Part Number
Description
Price
J21K-254
1/4"NPT Brass Pressure Connection; Phosphor Bronze Bellows; 0 to 90 psid Adjustable Set Point Range; 2 to 4 psi Fixed Deadband; 90 psid Proof Pressure; 30"Hg Vacuum to 200 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-232
1/4"NPT Brass Pressure Connection; Phosphor Bronze Bellows; 0 to 25 psid Adjustable Set Point Range; 0.6 to 1 psi Fixed Deadband; 25 psid Proof Pressure; 30"Hg Vacuum to 110 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-140
1/4"NPT Brass Pressure Connection; Brass Bellows; 0 to 6 psid Adjustable Set Point Range; 0.1 to 0.4 psi Fixed Deadband; 6 psid Proof Pressure; 30"Hg Vacuum to 30 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-150
1/4"NPT Brass Pressure Connection; Brass Bellows; 0 to 40 psid Adjustable Set Point Range; 0.3 to 0.7 psi Fixed Deadband; 40 psid Proof Pressure; 30"Hg Vacuum to 180 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-127
1/4"NPT Brass Pressure Connection; Brass Bellows; 30"Hg Vacuum to 0 Adjustable Set Point Range; 0.4 to 0.6"Hg Fixed Deadband; 15 psid Proof Pressure; 30"Hg Vacuum to 0 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-357
1/4"NPT 316L Pressure Connection; Welded 316L Bellows; 0 to 70 psid Adjustable Set Point Range; 2 to 4 psi Fixed Deadband; 70 psid Proof Pressure; 30"Hg Vacuum to 350 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
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J21K-S140B
1/2"NPT 316L Pressure Connection; Welded 316L Bellows; 0 to 6 psid Adjustable Set Point Range; 0.1 to 0.4 psi Fixed Deadband; 6 psid Proof Pressure; 30"Hg Vacuum to 30 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
Call
J21K-S150B
1/2"NPT 316L Pressure Connection; Welded 316L Bellows; 0 to 40 psid Adjustable Set Point Range; 0.3 to 0.7 psi Fixed Deadband; 300 psid Proof Pressure; 30"Hg Vacuum to 300 psi Working Pressure (NEMA 4 when used with watertight conduit fitting)
Call
J21K-S127B
1/2"NPT 316L Pressure Connection; Welded 316L Bellows; 30"Hg Vacuum to 0 Adjustable Set Point Range; 0.4 to 0.6"Hg Fixed Deadband; 15 psid Proof Pressure; 30"Hg Vacuum to 0 Working Pressure (NEMA 4 when used with watertight conduit fitting)
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