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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120 - 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, 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 4 1/2 in dial, 1/4 in NPT female connection…

SKU 3G-OTH-174639

Also listed as: 120AC00OAA100P · 120AC 00 O AA 100P

Brand
MIDWEST INSTRUMENT
Item
Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120
Category
Medium & High Operating Pressure Differential Gauges with Switch
Available to Order
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Local availability & support

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
120AC-00-O-AA-100P
Series
120
Type
120
Dial
4 1/2 in
NPT Female
1/4 in
Sensor Type
Piston
Gauge Accuracy
±3-2-3%
Housing Material
Aluminum
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 4 1/2 in dial, 1/4 in NPT female connection, and a piston sensor type. The gauge has an accuracy of ±3-2-3% and an aluminum housing. Note: a certificate of calibration is not included.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT Series 120 differential pressure gauge with switch used for?

The MIDWEST INSTRUMENT Series 120 differential pressure 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 local readout and switch output are required.

What are the specifications of the MIDWEST INSTRUMENT 120AC-00-O-AA-100P?

The MIDWEST INSTRUMENT 120AC-00-O-AA-100P is a Series 120 differential pressure gauge with switch. It has a 4 1/2 in dial, 1/4 in NPT female back connection, piston sensor, aluminum housing, and gauge accuracy of ±3-2-3%. A certificate of calibration is not included.

Where to buy the MIDWEST INSTRUMENT 120AC-00-O-AA-100P worldwide?

You can source the MIDWEST INSTRUMENT 120AC-00-O-AA-100P differential pressure gauge with switch through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for availability and lead time.

How to install the MIDWEST INSTRUMENT Series 120 differential pressure gauge?

Install the MIDWEST INSTRUMENT Series 120 gauge by connecting the 1/4 in NPT female ports to the process lines, ensuring proper orientation for the piston sensor. Use appropriate sealant on threads and avoid overtightening. Refer to the manufacturer's manual for wiring the switch and pressure limits.

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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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 4 1/2 in Dial (MPN 120AC-00-O-AA-75P)
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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 4 1/2 in Dial (MPN 120AC-00-O-AA-15P)
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MIDWEST INSTRUMENT Differential Pressure Gauge & Switch: Back, 1/4 in NPT Female, 120, 4 1/2 in Dial (MPN 120AC-00-O-AA-10P)

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