` DX Wet/Wet Differential Pressure Switch - Alpha Controls & Instrumentation Inc.


DX Wet/Wet Differential Pressure Switch

High static pressure rating of 200 PSIG, low differential set points, NEMA 4X weatherproof enclosure

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$125.00 CAD
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The Series DX is a differential pressure switch that makes a contact output based on the differential between two pressure sources. Wetted materials of brass and flouroelastomer are suitable for use with most gases and water based solutions. The switch can be used for low differential pressure indication with set point on a decrease of pressure as low as 1 PSID (0.07 Bar). Differential set point ranges are available from 2.5 PSID - 75 PSID (0.17 Bar - 5.17 Bar) on increasing differential pressure and 1.0 to 67 psid (0.07 to 4.62 bar) on decreasing differential pressure. Unit features a high static pressure rating of 200 PSIG (13.8 Bar). Weatherproof, UL type 4X, enclosure for dust laden, outdoor, or wash-down installation environments. Externally adjustable set point, integral mounting flange and a removable electrical terminal block for quick and easy installation.

• Differential pressure switch that is suitable for most gas and water-based applications allows multiple uses in the most sophisticated designs
• Weatherproof housing provides protection in the harsh, wet or dirty environments ensuring switch’s long-service life
• Removable terminal block reduces installation time


Service Compatible gases and liquids
Wetted Materials Connection: Brass; Diaphragm: Fluoroelastomer
Temperature Limits 30F - 140F (-1C - 60C)
Pressure Limits Maximum static pressure: 200 PSIG (13.8 Bar); maximum differential pressure: 1.25 x model's highest set point
Enclosure Rating Weatherproof UL type 4X (IP65)
Repeatability 2% of full range
Switch Type SPDT snap switch
Electrical Rating 5 A @ 125/250 VAC, 5 A res. @ 30 VDC
Electrical Connection Removable terminal block
Conduit Connection 0.871 in diameter hole for 1/2" conduit fitting
Process Connection 1/4 in NPT female
Mounting Orientation Ports on horizontal plane, 10
Set Point Adjustment External screw
Housing Materials Body: Aluminum; Housing: Polycarbonate; Cover: 300 SS
Vibration and Shock Set point repeats after 2.5 Gs, 5 Hz - 500 Hz.
Set point repeats after a 15 Gs, 10 ms duration
Humidity Limit 80% (non-condensing)
Pollution Degree 2
Environment Intended for indoor and outdoor use
Weight 1 lb 3 oz (0.54 kg)
Agency Approvals CE, cULus

• Indicating filter condition
• Proof of flow indicator monitoring
• Proving flow through a pump
• Proving flow through a chiller
• Proving flow through a heat pump or AC unit