MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 140
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-174583
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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, aluminum housing, and a gauge accuracy of ±3-2-3%. The manufacturer part number is 140-AA-00-O(AA)-50P, 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 differential pressure in medium and high operating pressure systems. Common applications include monitoring filter condition, flow measurement, and pump protection in industrial HVAC, water treatment, and process automation.
What are the specifications of the MIDWEST INSTRUMENT 140-AA-00-O(AA)-50P?
The MIDWEST INSTRUMENT 140-AA-00-O(AA)-50P is a Series 140 differential pressure gauge with switch. It has a 2 1/2 in dial, 1/4 in NPT Female back connection, diaphragm sensor, aluminum housing, and ±3-2-3% gauge accuracy. Certificate of calibration is not included.
Where to buy the MIDWEST INSTRUMENT 140 differential pressure gauge with switch worldwide?
You can source the MIDWEST INSTRUMENT 140 differential pressure gauge with switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. 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 with switch by mounting it vertically with the 1/4 in NPT Female back connection. Use appropriate thread sealant, avoid over-torquing, and ensure impulse lines are clean. Follow standard piping practices for differential pressure instruments to prevent diaphragm damage.
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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.















