MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120
The MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back is a medium and high operating pressure differential gauge with switch from the Series 120. It features a 2 1/2 in dial, 1/4 in NPT Female connection…
SKU 3G-OTH-174635
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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 120. It features a 2 1/2 in dial, 1/4 in NPT Female connection, and a piston sensor type. The gauge accuracy is ±3-2-3%, and the housing is made of 316 Stainless Steel. Certificate of Calibration is not included.
Frequently Asked Questions
What is the MIDWEST INSTRUMENT 120SA-00-O-AA-75P differential pressure gauge with switch used for?
This gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It is used in industrial filtration, pump protection, and flow monitoring applications where a piston sensor provides reliable switching at a set point.
What are the specifications of the MIDWEST INSTRUMENT Series 120 differential pressure gauge with switch?
The gauge has a 2 1/2 in dial, 1/4 in NPT Female connection, and a piston sensor type. Gauge accuracy is ±3-2-3%. Housing is 316 Stainless Steel. The switch is rated for 120 VAC. Certificate of Calibration is not included. Manufacturer part number is 120SA-00-O-AA-75P.
Where to buy the MIDWEST INSTRUMENT 120SA-00-O-AA-75P worldwide?
3G Electric supplies the MIDWEST INSTRUMENT 120SA-00-O-AA-75P differential pressure gauge with switch worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.
How to install a MIDWEST INSTRUMENT Series 120 differential pressure gauge with switch?
Mount the gauge with the 1/4 in NPT Female connection to a compatible process line. Ensure the piston sensor is oriented per manufacturer guidelines for accurate switching. Wire the switch contacts according to your control circuit voltage (120 VAC). Calibrate the set point using a reference pressure source.
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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.















