Pressure Switch
Todays deals on Pressure Switch?
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General Electric GE THPC3630ET1 High Pressure Contact Switch 3000 Amp 600Vac $6,195.82 |
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ITT Industries Neo-Dyn Pressure Switch 125P1S471 $5,000.00 |
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THPR3608B General Electric Circuit Breaker 3P 600V 800A High Pressure Switch $3,950.00 |
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NEW GE 1600 AMP DISCONNECT SWITCH ( HIGH PRESSURE CONTACT ) 240VAC 3POLE 3R $3,500.00 |
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GENERAL ELECTRIC THPR3612BET1 HIGH PRESSURE SWITCH $2,950.00 |
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10 Hydac EDS 3478 Series Electronic Pressure Switches 7500 psi, 2 SP & 4-20mA $2,750.00 |
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GENERAL ELECTRIC THPR3612B HIGH PRESSURE CONTACT SWITCH $2,200.00 |
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DEZURIK 870020-014-11-13-01-07-00 ELECTRO-PNEUMATIC NEW $2,100.00 |
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DEZURIK 870020-013-11-13-01-07-00 ELECTRO-PNEUMATIC NEW $2,100.00 |
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BARKSDALE 6781M1AS2A1 BUWEPS#2319704 PRESSURE SWITCH $1,999.00 |
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1200 AMP PRINGLE BOLTED PRESSURE SWITCH $1,999.00 |
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GE HIGH PRESSURE CONTACT SWITCH THPR3616ET1 3POLE 600V 1600A FUSED POWER CIRCUIT $1,800.00 |
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10-Hydac EDS 8476-2-6000-400 Electronic Pressure Switch 6000 psi with 2 switches $1,670.00 |
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2 Linear LRA Controllers, 3 Actuator Cylinders, 2 Pressure Switches $1,400.00 |
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SQUARE D CLASS 9012 TYPE GDR5 NEW HAZARDOUS LOCATION PRESSURE SWITCH 9012GDR5 $1,200.00 |
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Factory Sealed Allen Bradley AB 1756 M02AE Ser A Servo Module $1,200.00 |
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GENERAL ELECTRIC HIGH PRESSURE CONTACT SWITCH (THPC 3420BET1) 2000 Amps 480 VAC $1,000.00 |
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GE 1600amp/600V THPR 3616B High pressure Contact Switch Gear Circuit Breaker $995.00 |
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Pringle S-3317-2 1600 Amp Bolted Pressure Switch 600 V $1,000.00 |
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NEW MERCOID CONTROLS DWYER DAH21-153B-R-8S EXPLOSION PROOF PRESSURE SWITCH $999.99 |
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21477 NEW Allen-Bradley 1494M-N60 Disconnect Switch $899.33 |
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5 – Hydac EDS 8476-2-6000-400 Electronic Pressure Switch 6000 psi with 2 SP $899.00 |
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23815 New-No Box, Marel NA9949007 Pressure block Assembly, complete $889.88 |
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New Dynisco pressure transducer TPT463E-20M-6/18 $825.00 |
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DETRIOIT SWITCH 222085 AND 222-2085NB14 PRESSURE SWITCH NSN: 5930-00-001-3092 $825.00 |
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Aquamatic’s High Flo Plastic Diaphragm Valve Model V53J A200-14000 NEW in Box $790.00 |
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NEW HYCON ELECTRONIC PRESSURE CONTROLLER EDS-1020-450-2 $799.00 |
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Murphy differential pressure switch gage 7657-14-3 5488 $780.00 |
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GE THPR 3616 1600A 600V 3 POLE HIGH PRESSURE CONTACT SWITCH / BREAKER $699.99 |
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United Electric Pressure Switch 3-30 Psid 316SS 1/2″ J400KS147B (5241) $750.00 |
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Eaton Pressure Switch 211C119-149 dual mrk 5856120-507 NSN: 5930-01-411-2842 $750.00 |
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Anelva Pressure Sensor, Vacuum Switch 954-7700 $749.99 |
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Barton Pressure differential Gauge with switching capability $700.00 |
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UE J402 Pressure Switch w 3″ Pipe Sensor J402-358-9929 $729.99 |
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Ashcroft Pressure Switch GPSN4JB06 2000 psi (3118) $699.99 |
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NEW SQUARE D 9012ADW7M12 PRESSURE SWITCH 9012-ADW-7-M12 $650.00 |
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Fireye PXMS-200 Series Pressure Transmitter (NEW) $620.00 |
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Allen-Bradley 836T-T301J Pressure Control ~NIB~ $604.16 |
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T308-153 SWITCH PRESSURE ASSY $500.00 |
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SQUARE D 9012-GGW-4 PRESSURE SWITCH 9012GGW4G21H11V1 $600.00 |
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5 Watts R35-02C Regulators Numatics 225-2858 Solenoid Airtrol Pressure Switch $599.99 |
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Vickers Pressure Switch Model SG1 02 10 11, unused, NIB $599.95 |
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PEPPERL FUCHS 1002-WPS-CI Control Panel with Pressure Switch, Type Y or Z $595.00 |
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ALLEN BRADLEY GUARD MASTER SENSOR MAT 440F-M1010 $560.00 |
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SC11DV NEW ASCO PRESSURE SWITCH FREE SHIPPING $577.58 |
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◥◣ALLEN BRADLEY 836T-T262J X81X15 PRESSURE SWITCH◢◤ $516.00 |
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Yewflo Vortex Flowmeter YF105 $499.99 |
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VICKERS PRESSURE SWITCH F3 SG1 02 20 11 $500.00 |
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DETROIT SWITCH 222-10NB20-2223510 PRESSURE SWITCH NEW OLD STOCK $500.00 |
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SQUARE D 9012 GMW-2 GMW2 PRESSURE SWITCH ***NIB*** $499.00 |
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T326WOL BOLTSWITCH 600 AMP 240 VOLTS 3 POLE BOLTED PRESSURE CONTACT SWITCH $496.00 |
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CR2962-SAA GE Control Belt Slip Plugging Switch $495.00 |
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ITT AEROSPACE PRESSURE SWITCH PART # 1163P7-1 NSN: 5930-01-094-9314 $500.00 |
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NEW Allen Bradley 836-C64S Pressure Control $500.00 |
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1 Honeywell Precision Pressure Transducer PPT 0020, MWP 20 PSia, 22021921 $499.99 |
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849AZOD24 NEW ALLEN BRADLEY 849A ZOD24 $499.00 |
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Square D Pressure Switch 9012-GCW-21 480 VAC 10A 20-1000 Psig (6683) $480.00 |
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Allen Bradley 836T-T352JX81X9X6 Pressure Switch NEW $485.00 |
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SQUARE D 9012-GCW-22 PRESSURE SWITCH 2,900PSIG NEW!!! $475.00 |
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SQUARE D 9012 GGW-24 PRESSURE SWITCH HAZAROUS LOCATIONS NEW CONDITION NO BOX $475.00 |
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NIB SQUARE D 9012GCW-23 PRESSURE SWITCH 9012GCW23 $470.00 |
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NEW SQUARE D PRESSURE SWITCH 10 AMP MODEL 9012GQG-2 $459.99 |
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LOT 4 CKD GAP SWITCH GPS2-07-15-NGCO NEW GPS20715NGCO $450.00 |
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LOT 4 CKD GAP SWITCH GPS2-07-15-NGL NEW GPS20715NGL $450.00 |
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Ashcroft Dresser D-7-31-B-CEN6-07 Pressure Switch Assy $450.00 |
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OMEGA PSW-704 HEAVY DUTY PRESSURE SWITCH PSW704 $450.00 |
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OFFER & WIN- ALLEN BRADLEY – 836T-T263J $350.00 |
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SPECTRUM PART # 3204-1 PRESSURE SWITCH 65302-12559-104 NSN: 5930-00-014-5837 $450.00 |
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Allen Bradley 836-A1E Pressure Switch Hazardous Location NEW $427.00 |
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SQUARE D 9012 GGW-4 PRESSURE SWITCH 240 MAX PSIG NEW CONDITION NO BOX $425.00 |
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TELEMECANIQUE XML-A300D2S14 PRESSURE SWITCH (NIB) $420.00 |
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Mercoid DA-7043-153-24E 10/15 PSIG 316SS Bourdon Tube Pressure Switch New In Box $395.00 |
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NEW DWYER INSTRUMENTS 3020C SERIES 3000 PHOTOHELIC PRESSURE SWITCH / GAGE $414.99 |
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SOR 17RB-CX3-U9-C2A-X _J17 Differential Pressure Switch $414.99 |
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BARKSDALE VALVE 9045 9045R0AC3-H NEW $400.00 |
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SQUARE D MACHINE TOOL PRESSURE SWITCH 9012-GAW-25 NEW $400.00 |
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SquareD 600 VAC Pressure Switch 9012AMW1 $399.00 |
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ALLEN BRADLEY 836T-T351JX15X7 CONTROL SWITCH New $396.96 |
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Asco/ Tri Point Pressure Switch *New* SB10DF $409.99 |
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Static O Ring SOR Pressure Switch 41-K45-N4-B1A-PKTT $397.97 |
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Static O Ring SOR Pressure Switch 4L-B45-U9-C2A-RRX $397.97 |
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Static O Ring SOR Pressure Switch 6NN-K3-M4-C2A-RRX $397.97 |
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Static O Ring SOR Pressure Switch 15S-K5-P1-D2A-TT $397.97 |
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800 AMP HIGH PRESSURE SWITCH/WITH BOLT IN FUSES GENERAL ELECTRIC $395.00 |
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ASCO S-Series Pressure Switch – SA Switch Unit – NEW $400.00 |
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UNITED ELECTRIC H122-553 *NICE* $400.00 |
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BARKSDALE PRESSURE SWITCH 3AG11T-12C-Q2 *USED* $400.00 |
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New Hydac Vogel Electric Pressure Switch DS-EP-40-D-4 Free Shipping $400.00 |
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*NIB* AMETEK 851FG0100NHSCN Pressure Sensor, Transmitter Range 0-100 PSI Switch $399.99 |
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ALLEN-BRADLEY 836-A101X1 SERIES A PRESSURE SWITCH $399.99 |
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Taihei Boeki Pressure Switch PZ30PS-100X3 new $399.99 |
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*NEW* ALLEN BRADLEY 836T-T353J PRESSURE CONTROL SWITCH **FREE SHIPPING USA** $399.50 |
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Manocomb 1K2APD1 600/250 psi 250v 5a Pressure Switch $399.00 |
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Ashcroft Pressure Switch B722S X06 100-1000 Psi (4371) $379.99 |
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Barksdale Controls Solid State Pressure Switch 3AG11T-03C-01SW $392.50 |
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NEW SQUARE D 9012-GCW-23 PRESSURE SWITCH 9012GCW23 $389.99 |
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Barksdale D1T Terminal Block Diaphragm Pressure Switch $299.00 |
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Used Dynisco pressure transducer TPT463E-20M-6/18 $375.00 |
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ALLEN BRADLEY MODEL 836T-T351JX23X9 PRESSURE SWITCH NEW $375.00 |
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ALLEN BRADLEY 836T-T261J PRESSURE SWITCH NEW!!! $375.00 |
Pressure Switch Questions
How a Flow Switch Works
Although a flow switch is a very simple little device they are essential in a variety of different applications. They can be used to protect a pump, monitor the flow of a liquid, gas or air through a specific line as well as trigger alarms when necessary. The switches are also used to turn cooling circuits on to provide protection to engines, motors and many other types of devices.
In its most basic form the flow switch is used to sense the flow or passage of a fluid or air through the valve contained with the switch. This valve is set to send an enhanced or decreased electrical signal which then is read by a switching unit that can either turn a pump or valve on or it may also be used to turn it off. Options that are attached to alarms work using the same theory. If the flow volume through a given system decreases below a specific pressure or increases above a pressure the electrical signal triggers an alarm.
Flow switches can be used in a variety of different applications. They are very commonly used in reservoirs and tank storage systems to keep each tank full. They are also frequently used in pipelines to ensure that the flow of whatever liquid is being transferred down the pipeline is continuous. These handy types of switches can be instrumental in discovering and identifying problems in lines, especially if there are flow volume changes along the line. The larger industrial sizes of switches are typically also used in heating, air conditioning and refrigeration applications in large buildings and commercial settings.
Smaller types can be used in any size of conduit, tubing or pipe. Each switch will be rated for minimum and maximum flow rates, measured in GPM or gallons per minute, as well as the correct temperature under which the switch will operate. It is important to check both the fluid temperature rating as well as the ambient temperature recommendations to ensure that the model of switch you select will function in the specific environment. The other key factor to note is the maximum pressure or PSI rating for the switch. Operating the switch in lines above the specified pressure may result in inaccuracy in the functioning of the switch.
Switches may be specific to a type of system. It is important to check the manufacturer’s specifications and ensure that the switch you are considering is correct given the type of system you are installing. For example, a water line will need a one specifically for liquids with some manufacturers indicating water and liquids on their technical specifications. In addition the application information will let you know what it can be used for which may include alarms, motors, burners, metering devices, signal lights
Many of the water or liquid types of flow switches are made of brass and bronze and are very resistant to corrosion, rusting or breakdown. It is critical to ensure the correct installation of the switch, there is a in and an out side to most switches so that the valve will function correctly. Another common option for a lower cost but very durable type of flow control monitor is polypropylene. This lightweight yet extremely durable plastic is resistant to any type of rust, ideal for those lines that are not prone to freezing or expanding in very hot conditions. These newer styles of switches are becoming much more common on small and large projects since they come in a variety of sizes and ratings.
About the Author
Sandy Winslow is a writer of many subjects including electrical needs. Understanding how a flow switch is designed to work will help you determine the type and size of switch needed for your project.
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