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Differential Pressure Switch

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  • Dwyer Instruments, Inc.

    Dwyer Instruments Inc. designs and manufactures a number of differential pressure switch types including single and dual, large diaphragm, low, DPDT low, compact low, explosion-proof, HVAC, bourdon tube, double bellows, wet/wet, compact economic, gas pressure, and miniature.

  • Ashcroft, Inc.

    Ashcroft Inc. manufactures differential pressure switches that feature watertight epoxy-aluminum, explosion proof, and watertight 316 stainless steel enclosures. Differential pressure switches are available as single or dual set point with fixed or adjustable deadband.

  • Schneider Electric

    Schneider Electric manufactures adjustable differential and fixed differential pressure switches that feature a pressure range of 0.435 psi to 290 psi, with differential of .29 to 14.5 psi. The switches also feature a temperature range of -13F to 158F, media connection of 1/4" NPT, conduit connection of 1/2" NPT, and repeat accuracy of less than 2 percent.

  • DesignFlex Switches, a World Magnetics Co

    DesignFlex Switches manufactures low current and high current differential pressure switches. The low current switches feature operating temperatures of 40F to 150F, proof pressure of 8 psi or 15 psi, and a current rating of 40 mA. The high current switches feature proof pressure 1 psi, burst pressure of 3.5 psi, operating temperature of -13F to 185F, and current/voltage rating of 5A 125/250VAC.

  • Wasco, Inc.

    Wasco Inc. manufactures two series of low to medium miniature differential pressure switches that feature ranges from 1 to 500 psid. These differential pressure switches also feature a temperature range of 40F to 125F, stainless steel or brass construction, and a capsule type sensor.

  • Omega Engineering, Inc.

    Omega Engineering manufactures and distributes differential pressure switches that feature operating temperature of -30 to 65C, and set point accuracy of plus or minus 10 percent.

  • Barksdale, Inc.

    Barksdale Inc. manufactures seven series of differential pressure switches for applications that require instrument accuracy of plus or minus 0.5 percent and where pulsations are less than 25 cycles per minute. The pressure switches are available as single or dual setting units, with differential ranges from .03 to 150 psid and working ranges from .03 to 9,000 psi.

  • Grainger Industrial Supply

    Grainger distributes differential pressure switches manufactured by Dwyer Instruments and Square D. The Dwyer-brand switches feature differential of 2 to 16 WC, 0.08 to 0.8 WC, 0.2 to 2 WC, 0.12 to 1.6 WC, 2 to 10 WC, and 0.8 to 4 WC. The Square D-brand switches feature a pressure range of 0 to 175 psi.

  • Honeywell Sensing and Control

    Honeywell Sensing & Control designs and manufactures adjustable differential pressure switches that operate with a variety of materials including air, motor/transmission oils, jet fuels, and other hydrocarbons. The switches are factory set from 0.5 psi to 3000 psi, and feature operating pressure of 150 psi or 250 psi, and proof pressure of 500 psi.

  • MAMCO Precision Switches

    MAMCO Precision Switches manufactures differential pressure switches, differential diaphragm pressure switches, and PCB mount differential pressure switches. Depending on type, the switches feature an operating temperature range of -40 to 120 C or -40 to 85C; operating pressure of .75" to 550", 0.15" to 34", or up to 5000 psi; burst pressure of 25 psi or 5 psi; and maximum pressure of 1003" or 401".

  • Micro Pneumatic Logic, Inc.

    Micro Pneumatic Logic Inc. designs differential pressure switches that are sensitive to as low as 0.10" in water. The switches feature operating temperature of -40 to 120 C, and burst of 25 psi. The differential pressure switches are used in oxygen concentrator, appliance, pneumatic equipment, air filter, exhaust monitoring, automation, and vehicle control applications.

  • MidWest Instruments

    Mid-West Instruments manufactures piston-type, diaphragm-type, and hazardous location-type differential pressure switches that feature maximum working pressures of 6000 psig, 5000 psig, 10000 psig, 3000 psig, 500 psig, 400 psig, 1500psig, or 6000 psig. The switches also feature accuracies of plus or minus 2 to 5 percent.

  • Whitman Controls Corporation

    Whitman Controls Corp. manufactures a line of differential pressure switches that feature a differential increasing pressure range of 7 psid to 250 psid, and a differential decreasing pressure range of 2 psid to 120 psid. The switches also feature fixed, adjustable, or custom set point options.

  • Neo-Dyn

    ITT Neodyn manufactures general purpose and hazardous area differential pressure switches that are categorized by NEMA standards. The switches can be compact in design with stable set points, feature a range of internal wetted materials, or feature weatherproof enclosures.

  • Orange Research, Inc.

    Orange Research designs differential pressure switches that feature maximum line pressures of 3000, 5000, 10,000, 7500, 3000, 1500, or 100 - with piston, diaphragm, mini-piston, or mini-diaphragm sensors. The switches also feature maximum ranges of 0-150psid, 0-1000 psid, 0-300 psid, 0-50 psid, or 0-30 psid.

  • Pressure Switches, Inc.

    Pressure Switches Inc. distributes a non-hazardous location, differential pressure switch for high pressure and low pressure requirements. The switches are rated to NEMA 4, 4X and 13 standards.

  • Sensocon, Inc.

    Sensocon Inc. manufacture differential pressure switches for very low pressure applications. The switches feature maximum pressure of $' w.c., repeatability of 2 percent, and temperature limits of 5 to 140F.

  • Thorco Holdings, LLC

    Thorco Holdings LLC assembles and distributes three series of differential pressure switches including ultra low adjustable, mid-range adjustable, and high pressure adjustable types. The various switches features adjustable ranges of .5" H2O to 100" H2O, 0.3 psid to 110 psid, and 1 psid to 1,000 psid. The switches also feature aluminum or stainless steel wetted materials.

  • United Electric Controls

    United Electric Controls Inc. designs and manufactures three series of differential pressure switches. The company's J21K series of switches feature adjustable ranges of 30" Hg Vac to 90 psid, while 400 series feature temperature of -180 to 650 F, and pressure of 30" Hg VAC to 6000 psi.