Mid-West Instrument Datasheets for Mechanical Pressure Gauges

Analog pressure gauges are mechanical devices that include bellows, Bourdon tubes, capsule elements and diaphragm element gauges.
Mechanical Pressure Gauges: Learn more

Product Name	Notes
Model 126 Series -- Model 126 Model 127 Series -- Model 127 Model 146 Series -- Model 146
Model 555 Series	he Model 555 Series Differential Pressure Indicator offers a two sided dial providing easier installation regardless of flow direction. It is used on filters & strainers. The Rolling Diaphragm Sensing...
Model 140 Series -- 140-AA Model 140 Series -- 140-AC Model 140 Series -- 140-AE Model 140 Series -- 140-AG Model 140 Series -- 140-BA Model 140 Series -- 140-BC Model 140 Series -- 140-BE Model 140 Series -- 140-BG Model 140 Series -- 140-SA Model 140 Series -- 140-SC Model 140 Series -- 140-SE Model 140 Series -- 140-SG	The Division 2 rated product is a lower cost alternative when compared to the Explosion-Proof designs that are often used in Division 2 applications. Mid-West Instrument's Models 140/142 are CSA...
Model 130 Series -- 130-AC Model 130 Series -- 130-AE Model 130 Series -- 130-AG Model 130 Series -- 130-BC Model 130 Series -- 130-BE Model 130 Series -- 130-BG Model 130 Series -- 130-HC Model 130 Series -- 130-HE Model 130 Series -- 130-HG Model 130 Series -- 130-PC Model 130 Series -- 130-PE Model 130 Series -- 130-PG Model 130 Series -- 130-SC Model 130 Series -- 130-SE Model 130 Series -- 130-SG	The Model 130 diaphragm isolated Differential Pressure Switch is CSA Certified to both the Canadian and U.S. Standards and U.L. Listed to the U.S. Standards. The entire assembly is Certified...
Model 220 Series -- 220-A Model 220 Series -- 220-C Model 220 Series -- 220-E Model 220 Series -- 220-F	The Model 220 carries global certifications from CSA, UL, and ATEX. The piston style Differential Pressure Switch is CSA Certified to both the Canadian and U.S. Standards and U.L. Listed...
Model 240 Series -- 240-AC Model 240 Series -- 240-AF Model 240 Series -- 240-AT Model 240 Series -- 240-AZ Model 240 Series -- 240-SC Model 240 Series -- 240-SF Model 240 Series -- 240-ST Model 240 Series -- 240-SZ Model 240 Series -- 240-ZC Model 240 Series -- 240-ZF Model 240 Series -- 240-ZT Model 240 Series -- 240-ZZ	The Model 240 carries global certifications from CSA, UL, and ATEX. The diaphragm isolated Differential Pressure Switch is CSA Certified to both the Canadian and U.S. Standards and U.L. Listed...
Model 122 Series -- 122-A Model 122 Series -- 122-C Model 122 Series -- 122-E Model 122 Series -- 122-G	1 to 2 independently adjustable switches Clamp or Stick on Switches Hermetically Sealed Switches SPDT, SPST Normally Open Configurations Most configurations CE marked to the Low Voltage Directive (EN 61010)...
Model 120 Series -- 120-AA Model 120 Series -- 120-AB Model 120 Series -- 120-AC Model 120 Series -- 120-AD Model 120 Series -- 120-AE Model 120 Series -- 120-AF Model 120 Series -- 120-AG Model 120 Series -- 120-AH Model 120 Series -- 120-MA Model 120 Series -- 120-MB Model 120 Series -- 120-MC Model 120 Series -- 120-MD Model 120 Series -- 120-ME Model 120 Series -- 120-MF Model 120 Series -- 120-MG Model 120 Series -- 120-MH Model 120 Series -- 120-NA Model 120 Series -- 120-NB Model 120 Series -- 120-NC Model 120 Series -- 120-ND Model 120 Series -- 120-NE Model 120 Series -- 120-NF Model 120 Series -- 120-NG Model 120 Series -- 120-NH Model 120 Series -- 120-SA Model 120 Series -- 120-SB Model 120 Series -- 120-SC Model 120 Series -- 120-SD Model 120 Series -- 120-SE Model 120 Series -- 120-SF Model 120 Series -- 120-SG Model 120 Series -- 120-SH	1 to 2 independently adjustable switches Hermetically Sealed Switches SPDT, SPST Normally Open, & SPST Normally Closed Configurations Most configurations CE marked to the Low Voltage Directive (EN 61010) Power...
Model 106 Series -- 106-C Model 106 Series -- 106-D Model 106 Series -- 106-E Model 106 Series -- 106-F Model 106 Series -- 106-G Model 106 Series -- 106-H Model 106 Series -- 106-J Model 106 Series -- 106-K Model 106 Series -- 106-L Model 106 Series -- 106-M Model 106 Series -- 106-N Model 106 Series -- 106-P Model 106 Series -- 106-Q Model 106 Series -- 106-R Model 106 Series -- 106-T Model 106 Series -- 106-U Model 106 Series -- 106-V Model 106 Series -- 106-X	Micro Adjust Pointer Wide Selection of DP Ranges & Scales Bellows or Multiple Diaphragm Sensing Element Working Pressures up to 6000 PSIG (400 bar) Gauge Housings available in Aluminum, Brass,...
Model 105 Series -- 105-C Model 105 Series -- 105-D Model 105 Series -- 105-E Model 105 Series -- 105-F Model 105 Series -- 105-G Model 105 Series -- 105-H Model 105 Series -- 105-J Model 105 Series -- 105-K Model 105 Series -- 105-L Model 105 Series -- 105-M Model 105 Series -- 105-N Model 105 Series -- 105-P Model 105 Series -- 105-Q Model 105 Series -- 105-R Model 105 Series -- 105-T Model 105 Series -- 105-U Model 105 Series -- 105-V Model 105 Series -- 105-X	Over-Range Protection, High over Low and Low over High Micro Adjust Pointer Wide Selection of DP Ranges & Scales Bellows or Multiple Diaphragm Sensing Element Working Pressures up to 6000...
Model 141 Series -- 141-AA Model 141 Series -- 141-AC Model 141 Series -- 141-AE Model 141 Series -- 141-AG Model 141 Series -- 141-BA Model 141 Series -- 141-BC Model 141 Series -- 141-BE Model 141 Series -- 141-BG Model 141 Series -- 141-SA Model 141 Series -- 141-SC Model 141 Series -- 141-SE Model 141 Series -- 141-SG	Simple Rugged Designs Glass Reinforced Thermoplastic Gauge Front Is Standard Weather Resistant & Corrosion Resistant Gauge Front 5 Year Warranty
Model 123 Series -- 123-A Model 123 Series -- 123-C Model 123 Series -- 123-*G	Simple Rugged Designs Glass Reinforced Thermoplastic Gauge Front Is Standard Weather Resistant & Corrosion Resistant Gauge Front Shatter Resistant Lens 5 Year Warranty
Model 109 Series -- 109-C Model 109 Series -- 109-D Model 109 Series -- 109-E Model 109 Series -- 109-F Model 109 Series -- 109-G Model 109 Series -- 109-H Model 109 Series -- 109-J Model 109 Series -- 109-K Model 109 Series -- 109-L Model 109 Series -- 109-M Model 109 Series -- 109-N Model 109 Series -- 109-P Model 109 Series -- 109-Q Model 109 Series -- 109-R Model 109 Series -- 109-T Model 109 Series -- 109-U Model 109 Series -- 109-V Model 109 Series -- 109-W Model 109 Series -- 109-Y	Wide DP Range from 0-15 PSID to 0-6000 PSID Bourdon Tube Sensing Element Working Pressures up to 6000 PSIG (400 bar) Over-Range Protection, High over Low and Low over High...

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