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MIDWEST INSTRUMENT 120AA-00-O-AA-50P Differential Pressure Gauge with Switch - Medium & High Operating Pressure Differential Gauges with Switch
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges with Switch

MIDWEST INSTRUMENT 120AA-00-O-AA-50P 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 piston sensor type, aluminum housing, and a…

SKU 3G-OTH-174625

Also listed as: 120AA00OAA50P · 120AA 00 O AA 50P

Brand
MIDWEST INSTRUMENT
Item
120AA-00-O-AA-50P Differential Pressure Gauge with Switch
Part Number
120AA-00-O-AA-50P
Category
Medium & High Operating Pressure Differential Gauges with Switch
Available to Order
Also known as:120AA-00-O-AA-50PMIDWEST INSTRUMENT
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
120AA-00-O-AA-50P
Series
120
Type
120
Dial
2 1/2 in
NPT Female
1/4 in
Sensor Type
Piston
Gauge Accuracy
±3-2-3%
Housing Material
Aluminum
Certificate of Calibration
Not Included

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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 piston sensor type, aluminum housing, and a 2 1/2 in dial with 1/4 in NPT female connections. The gauge accuracy is ±3-2-3%, and a certificate of calibration is not included.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 120AA-00-O-AA-50P differential pressure gauge and switch used for?

This Series 120 gauge with switch monitors and controls differential pressure in medium to high operating pressure systems. It is used in filtration, pump protection, and flow monitoring across industrial processes where a piston sensor and aluminum housing provide reliable performance.

What are the specifications of the MIDWEST INSTRUMENT 120AA-00-O-AA-50P?

The gauge has a 2 1/2 in dial, 1/4 in NPT female back connections, piston sensor type, aluminum housing, and ±3-2-3% accuracy. It is part of the Series 120 and does not include a certificate of calibration. The manufacturer part number is 120AA-00-O-AA-50P.

Where to buy the MIDWEST INSTRUMENT 120AA-00-O-AA-50P worldwide?

3G Electric supplies the MIDWEST INSTRUMENT 120AA-00-O-AA-50P differential pressure gauge and switch to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct Series 120 unit for your application.

How to install the MIDWEST INSTRUMENT 120AA-00-O-AA-50P differential pressure gauge and switch?

Mount the gauge using the 1/4 in NPT female back connection, ensuring proper sealing with thread tape. Connect impulse lines to the high- and low-pressure ports, and verify the piston sensor moves freely. Follow standard piping practices for differential pressure instruments.

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
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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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