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MIDWEST INSTRUMENT 120SA-00-O-AA-20P Differential Pressure Gauge with Switch - Medium & High Operating Pressure Differential Gauges with Switch
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges with Switch

MIDWEST INSTRUMENT 120SA-00-O-AA-20P 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 120. It features a 2 1/2 in dial, 1/4 in NPT Female connection…

SKU 3G-OTH-174633

Also listed as: 120SA00OAA20P · 120SA 00 O AA 20P

Brand
MIDWEST INSTRUMENT
Item
120SA-00-O-AA-20P 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
120SA-00-O-AA-20P
Series
120
Type
120
Dial
2 1/2 in
NPT Female
1/4 in
Sensor Type
Piston
Gauge Accuracy
±3-2-3%
Housing Material
316 Stainless Steel
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 120. It features a 2 1/2 in dial, 1/4 in NPT Female connection, and a piston sensor type. The housing is made of 316 Stainless Steel, with a gauge accuracy of ±3-2-3%. A certificate of calibration is not included.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 120SA-00-O-AA-20P differential pressure gauge with switch used for?

This gauge with switch is used to measure and control differential pressure in medium to high operating pressure systems. Common applications include filtration monitoring, pump protection, and flow measurement in industrial processes where a piston sensor and 316 stainless steel housing are required.

What are the specifications of the MIDWEST INSTRUMENT Series 120 differential pressure gauge?

The Series 120 gauge has a 2 1/2 in dial, 1/4 in NPT Female connection, piston sensor type, and gauge accuracy of ±3-2-3%. The housing is 316 Stainless Steel. It includes a switch and does not include a certificate of calibration. The manufacturer part number is 120SA-00-O-AA-20P.

Where to buy the MIDWEST INSTRUMENT 120SA-00-O-AA-20P differential pressure gauge worldwide?

3G Electric supplies the MIDWEST INSTRUMENT 120SA-00-O-AA-20P differential pressure gauge worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct MIDWEST INSTRUMENT differential pressure gauge for my system?

Select based on your system's operating pressure range, connection size (1/4 in NPT Female), and required accuracy (±3-2-3%). The piston sensor type is suitable for medium to high pressures. Ensure the 316 stainless steel housing is compatible with your process fluid. Consult a MIDWEST INSTRUMENT datasheet for full specifications.

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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This differential pressure gauge with switch from the Series 120 features a piston sensor and a 2 1/2 in dial with ±3-2-3% accuracy. The 316 stainless steel housing and 1/4 in NPT female back connection suit medium to high operating pressure systems. Typical applications include industrial filtration, pump monitoring, and hydraulic systems where a switch enables alarm or control actions at set thresholds
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 features a piston sensor and a 2 1/2 in dial with ±3-2-3% accuracy. The 316 stainless steel housing and 1/4 in NPT female back connection suit medium to high operating pressure systems. Typical applications include industrial filtration, pump monitoring, and hydraulic systems where a switch enables alarm or control actions at set thresholds
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 2 1/2 in Dial (MPN 120SA-00-O-AA-10P)
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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 2 1/2 in Dial (MPN 120SA-00-O-AA-10P)
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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 2 1/2 in Dial (MPN 120SA-00-O-AA-15P)
Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. Housed in 316 stainless steel with a 1/4 in NPT female back connection. Gauge accuracy is ±3-2-3%. Certificate of calibration not included. Typical applications include industrial filtration, pump monitoring, and hydraulic systems
MIDWEST INSTRUMENT
Medium and high operating pressure differential gauge with switch, featuring a piston sensor and 2 1/2 in dial. Housed in 316 stainless steel with a 1/4 in NPT female back connection. Gauge accuracy is ±3-2-3%. Certificate of calibration not included. Typical applications include industrial filtration, pump monitoring, and hydraulic systems
This differential pressure gauge with switch from the Series 120 is designed for medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female connection, and a piston sensor. The 316 stainless steel housing provides corrosion resistance. Accuracy is ±3-2-3%. Certificate of calibration not included
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 is designed for medium to high operating pressure systems. It features a 2 1/2 in dial, 1/4 in NPT female connection, and a piston sensor. The 316 stainless steel housing provides corrosion resistance. Accuracy is ±3-2-3%. Certificate of calibration not included
This differential pressure gauge with switch from the Series 120 is designed for medium to high operating pressure applications. It features a piston sensor, 2 1/2 in dial, 1/4 in NPT female connection, and a 316 stainless steel housing. Gauge accuracy is ±3-2-3%. Typical uses include filtration monitoring, pump protection, and flow measurement in industrial processes
MIDWEST INSTRUMENT
This differential pressure gauge with switch from the Series 120 is designed for medium to high operating pressure applications. It features a piston sensor, 2 1/2 in dial, 1/4 in NPT female connection, and a 316 stainless steel housing. Gauge accuracy is ±3-2-3%. Typical uses include filtration monitoring, pump protection, and flow measurement in industrial processes

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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
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Series 120 differential pressure gauge with switch, featuring a 2 1/2 in dial, 1/4 in NPT female connection, and a piston sensor. Housed in 316 stainless steel with ±3-2-3% accuracy. Suitable for monitoring differential pressure in medium to high operating pressure systems, such as filtration and flow applications
This differential pressure gauge with switch from the Series 120 features a piston 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 controlling differential pressure in medium to high operating pressure systems, such as filtration and pump protection
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This differential pressure gauge with switch from the Series 120 features a piston 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 controlling differential pressure in medium to high operating pressure systems, such as filtration and pump protection
This Series 240 differential pressure gauge with switch features a diaphragm sensor and 316 stainless steel housing. It has a 1/4 in NPT female connection, IP65 4X rating, and ±3-2-3% accuracy. Used for monitoring and controlling differential pressure in medium to high pressure systems
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Medium and high operating pressure differential gauge with switch from the Series 120. Features a piston sensor, 2 1/2 in dial, 1/4 in NPT female connection, and 316 stainless steel housing. Accuracy is ±3-2-3%. Suitable for industrial filtration, pump monitoring, and hydraulic systems
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Medium and high operating pressure differential gauge with switch from the Series 120. Features a piston sensor, 2 1/2 in dial, 1/4 in NPT female connection, and 316 stainless steel housing. Accuracy is ±3-2-3%. Suitable for industrial filtration, pump monitoring, and hydraulic systems
This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a piston sensor, a 2 1/2 in dial, and a 1/4 in NPT Female connection. The aluminum housing provides corrosion resistance, and the gauge accuracy is ±3-2-3%. Typical uses include monitoring filter condition, flow measurement, and pump protection in industrial processes and fluid handling systems
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This differential pressure gauge with switch from the Series 120 is designed for medium and high operating pressure applications. It features a piston sensor, a 2 1/2 in dial, and a 1/4 in NPT Female connection. The aluminum housing provides corrosion resistance, and the gauge accuracy is ±3-2-3%. Typical uses include monitoring filter condition, flow measurement, and pump protection in industrial processes and fluid handling systems
MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: In-Line, 1/4 in NPT Female, 240, IP65 4X (MPN 240-SC-02-O(JAA)-20P)
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