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MIDWEST INSTRUMENT Series 140 Differential Pressure Gauge with Switch - Medium & High Operating Pressure Differential Gauges with Switch
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges with Switch

MIDWEST INSTRUMENT Series 140 Differential Pressure Gauge with Switch

The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 140. It features a 2 1/2 in dial, 1/4 in NPT Female connection…

SKU 3G-OTH-174588

Also listed as: 140AA00OAA100P · 140 AA 00 O AA 100P · 140-AA-00-O-AA-100P

Brand
MIDWEST INSTRUMENT
Item
Series 140 Differential Pressure Gauge with Switch
Category
Medium & High Operating Pressure Differential Gauges with Switch
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
140-AA-00-O(AA)-100P
Series
140
Type
140, 2 1/2 in Dial (MPN 140-AA-00-O(AA)-100P)
NPT Female
1/4 in
Sensor Type
Diaphragm
Gauge Accuracy
±3-2-3%
Housing Material
Aluminum
Certificate of Calibration
Not Included

Technical Documents

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MIDWEST INSTRUMENT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 140. It features a 2 1/2 in dial, 1/4 in NPT Female connection, a diaphragm sensor type, and an aluminum housing. The gauge accuracy is ±3-2-3%, and a certificate of calibration is not included.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT Series 140 differential pressure gauge with switch used for?

The MIDWEST INSTRUMENT Series 140 differential pressure gauge with switch is used to measure and control pressure differences in medium to high operating pressure systems. Common applications include monitoring filter condition, pump performance, and flow in HVAC, industrial process, and fluid power systems.

What are the specifications of the MIDWEST INSTRUMENT 140-AA-00-O(AA)-100P?

The MIDWEST INSTRUMENT 140-AA-00-O(AA)-100P is a Series 140 differential pressure gauge with switch. It has a 2 1/2 in dial, 1/4 in NPT Female connection, diaphragm sensor, aluminum housing, and ±3-2-3% gauge accuracy. Certificate of calibration is not included.

Where to buy the MIDWEST INSTRUMENT Series 140 differential pressure gauge worldwide?

You can source the MIDWEST INSTRUMENT Series 140 differential pressure gauge worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a MIDWEST INSTRUMENT Series 140 differential pressure gauge with switch?

Install the MIDWEST INSTRUMENT Series 140 gauge by connecting the 1/4 in NPT Female ports to the high- and low-pressure lines. Mount the aluminum housing securely, ensure the diaphragm sensor is not over-ranged, and wire the switch per your control circuit. Follow standard piping best practices for differential pressure devices.

Used in

Common applications for MIDWEST INSTRUMENT
Filter monitoring in industrial water treatment — MIDWEST INSTRUMENT 522 series 3-color differential pressure indicators
Flow measurement in chemical processing — MIDWEST INSTRUMENT Series 120 piston-type differential pressure gauges
Liquid level indication in oil and gas storage tanks — MIDWEST INSTRUMENT Model 142 diaphragm-type differential pressure gauges
HVAC system filter condition monitoring — MIDWEST INSTRUMENT Series 130 differential pressure gauges with glass-reinforced plastic housing
Pump differential pressure monitoring in industrial plants — MIDWEST INSTRUMENT 522 series indicators with switch for alarm output

MIDWEST INSTRUMENT Products

3G Electric supplies MIDWEST INSTRUMENT medium & high operating pressure differential gauges with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
This differential pressure gauge with switch from the Series 140 features a 2 1/2 in dial, diaphragm sensor, and aluminum housing. It has a 1/4 in NPT female back connection and an accuracy of ±3-2-3%. The integrated switch allows for alarm or control functions in medium to high operating pressure systems, commonly used to monitor filter clogging, flow variations, or pressure drops across equipment
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 140 features a 2 1/2 in dial, diaphragm sensor, and aluminum housing. It has a 1/4 in NPT female back connection and an accuracy of ±3-2-3%. The integrated switch allows for alarm or control functions in medium to high operating pressure systems, commonly used to monitor filter clogging, flow variations, or pressure drops across equipment
This differential pressure gauge with switch from the Series 140 features a 2 1/2 in dial and a 1/4 in NPT female connection. It uses a diaphragm sensor and has an aluminum housing with an accuracy of ±3-2-3%. Suitable for monitoring filter condition, flow measurement, and pump protection in medium to high pressure systems
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 140 features a 2 1/2 in dial and a 1/4 in NPT female connection. It uses a diaphragm sensor and has an aluminum housing with an accuracy of ±3-2-3%. Suitable for monitoring filter condition, flow measurement, and pump protection in medium to high pressure systems
This differential pressure gauge with switch from the Series 140 features a diaphragm sensor and a 2 1/2 in dial. It has a 1/4 in NPT Female back connection and a 316 stainless steel housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring differential pressure in medium to high operating pressure systems, such as filtration and pump applications
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 140 features a diaphragm sensor and a 2 1/2 in dial. It has a 1/4 in NPT Female back connection and a 316 stainless steel housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring differential pressure in medium to high operating pressure systems, such as filtration and pump applications
This medium and high operating pressure differential gauge integrates a switch for monitoring and control. It features a 2 1/2 in dial, 1/4 in NPT female connection, diaphragm sensor, and 316 stainless steel housing. Accuracy is ±3-2-3%. Suitable for industrial filtration, pump monitoring, and process control applications
MIDWEST INSTRUMENT
This medium and high operating pressure differential gauge integrates a switch for monitoring and control. It features a 2 1/2 in dial, 1/4 in NPT female connection, diaphragm sensor, and 316 stainless steel housing. Accuracy is ±3-2-3%. Suitable for industrial filtration, pump monitoring, and process control applications
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 140, 2 1/2 in Dial (MPN 140-SA-00-O(AA)-100P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 140, 2 1/2 in Dial (MPN 140-SA-00-O(AA)-100P)
This differential pressure gauge with switch from the Series 142 features a diaphragm sensor and an aluminum housing. It has a 2 1/2 in dial with ±3-2-3% accuracy and a 1/4 in NPT Female back connection. The unit is used for monitoring and controlling differential pressure in medium to high operating pressure systems, such as filtration monitoring, pump protection, and flow measurement
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 142 features a diaphragm sensor and an aluminum housing. It has a 2 1/2 in dial with ±3-2-3% accuracy and a 1/4 in NPT Female back connection. The unit is used for monitoring and controlling differential pressure in medium to high operating pressure systems, such as filtration monitoring, pump protection, and flow measurement

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This Series 120 differential pressure gauge with switch provides local readout and switch output for medium to high operating pressure systems. It features a 4 1/2 in dial, 1/4 in NPT female back connection, piston sensor, aluminum housing, and ±3-2-3% accuracy. Typical applications include filtration monitoring, pump protection, and flow measurement in industrial processes
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This Series 120 differential pressure gauge with switch provides local readout and switch output for medium to high operating pressure systems. It features a 4 1/2 in dial, 1/4 in NPT female back connection, piston sensor, aluminum housing, and ±3-2-3% accuracy. Typical applications include filtration monitoring, pump protection, and flow measurement in industrial processes
Series 240 differential pressure gauge with switch, featuring a diaphragm sensor and 316 stainless steel housing. Accuracy is ±3-2-3%. Connections are 1/4 in NPT female. Rated IP65 4X. Suitable for monitoring and controlling differential pressure in medium to high pressure systems such as filtration, flow measurement, and pump monitoring
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Series 240 differential pressure gauge with switch, featuring a diaphragm sensor and 316 stainless steel housing. Accuracy is ±3-2-3%. Connections are 1/4 in NPT female. Rated IP65 4X. Suitable for monitoring and controlling differential pressure in medium to high pressure systems such as filtration, flow measurement, and pump monitoring
This differential pressure gauge with switch from the Series 142 features a diaphragm sensor and aluminum housing. It has a 2 1/2 in dial with 1/4 in NPT Female back connection and an accuracy of ±3-2-3%. Suitable for monitoring and switching on differential pressure in medium to high operating pressure systems such as industrial filtration, pump monitoring, and HVAC applications
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This differential pressure gauge with switch from the Series 142 features a diaphragm sensor and aluminum housing. It has a 2 1/2 in dial with 1/4 in NPT Female back connection and an accuracy of ±3-2-3%. Suitable for monitoring and switching on differential pressure in medium to high operating pressure systems such as industrial filtration, pump monitoring, and HVAC applications
Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. The 316L stainless steel housing and 1/4 in NPT female connection suit industrial filtration, flow measurement, and pump monitoring applications. Accuracy is ±3-2-3% of full scale. Certificate of calibration not included
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Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. The 316L stainless steel housing and 1/4 in NPT female connection suit industrial filtration, flow measurement, and pump monitoring applications. Accuracy is ±3-2-3% of full scale. Certificate of calibration not included
This Series 120 differential pressure gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connection, aluminum housing, and piston sensor with ±3-2-3% accuracy. Suitable for filtration, pump, and HVAC applications
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This Series 120 differential pressure gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female back connection, aluminum housing, and piston sensor with ±3-2-3% accuracy. Suitable for filtration, pump, and HVAC applications
This medium and high operating pressure differential gauge with switch from the Series 120 features a 2 1/2 in dial and 1/4 in NPT female connection. The piston sensor and 316 stainless steel housing support use in filtration, flow measurement, and pump monitoring applications. Gauge accuracy is ±3-2-3%. Certificate of calibration not included
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This medium and high operating pressure differential gauge with switch from the Series 120 features a 2 1/2 in dial and 1/4 in NPT female connection. The piston sensor and 316 stainless steel housing support use in filtration, flow measurement, and pump monitoring applications. Gauge accuracy is ±3-2-3%. Certificate of calibration not included
This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a 2 1/2 in dial, 1/4 in NPT female connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring pressure differences in filtration, flow measurement, and pump systems
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a 2 1/2 in dial, 1/4 in NPT female connections, a piston sensor, and an aluminum housing. Gauge accuracy is ±3-2-3%. Suitable for monitoring pressure differences in filtration, flow measurement, and pump systems
This differential pressure gauge with switch from the Series 120 features a 2 1/2 in dial, 1/4 in NPT female back connection, and a piston sensor. The aluminum housing and ±3-2-3% accuracy make it suitable for monitoring and controlling differential pressure in medium to high operating pressure systems such as filtration, pump monitoring, and process control. Certificate of calibration not included
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 features a 2 1/2 in dial, 1/4 in NPT female back connection, and a piston sensor. The aluminum housing and ±3-2-3% accuracy make it suitable for monitoring and controlling differential pressure in medium to high operating pressure systems such as filtration, pump monitoring, and process control. Certificate of calibration not included