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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 142 - Medium & High Operating Pressure Differential Gauges with Switch
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges with Switch

MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 142

The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 142. It features a diaphragm sensor, aluminum housing, and a 2…

SKU 3G-OTH-174644

Brand
MIDWEST INSTRUMENT
Item
Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 142
Category
Medium & High Operating Pressure Differential Gauges with Switch
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Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
142-AA-00-O(AA)-15P
Series
142
Type
142, 2 1/2 in Dial (MPN 142-AA-00-O(AA)-15P)
NPT Female
1/4 in
Sensor Type
Diaphragm
Gauge Accuracy
±3-2-3%
Housing Material
Aluminum
Certificate of Calibration
Not Included
View Full Spec Sheet

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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 142. It features a diaphragm sensor, aluminum housing, and a 2 1/2 in dial with ±3-2-3% gauge accuracy. The unit has a 1/4 in NPT Female connection and does not include a certificate of calibration.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 142 differential pressure gauge with switch used for?

This gauge monitors and switches on differential pressure in medium to high operating pressure systems. It is used in HVAC, filtration, pump, and process control applications where a diaphragm sensor and aluminum housing provide reliable performance.

What are the specifications of the MIDWEST INSTRUMENT 142-AA-00-O(AA)-15P?

The Series 142 gauge has a 2 1/2 in dial, 1/4 in NPT Female back connection, diaphragm sensor, aluminum housing, and ±3-2-3% accuracy. It does not include a certificate of calibration. The manufacturer part number is 142-AA-00-O(AA)-15P.

Where to buy the MIDWEST INSTRUMENT 142 differential pressure gauge worldwide?

3G Electric supplies and delivers the MIDWEST INSTRUMENT 142 differential pressure gauge worldwide. We handle full logistics and customs clearance as a global industrial sourcing partner, ensuring you receive the correct Series 142 gauge for your application.

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

Mount the gauge using the 1/4 in NPT Female back connection, ensuring the diaphragm sensor is oriented correctly for the process media. Follow standard piping practices for differential pressure instruments and verify electrical connections per the switch rating.

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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