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MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy - Medium & High Operating Pressure Differential Gauges
MIDWEST INSTRUMENTMedium & High Operating Pressure Differential Gauges

MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy

The MIDWEST INSTRUMENT Differential Pressure Gauge: Back is a medium and high operating pressure differential gauge from the Series 140. It features a diaphragm sensor type, an aluminum housing, and a gauge accuracy…

SKU 3G-OTH-175156

Also listed as: 140AC00OO30P · 140 AC 00 OO 30P

Brand
MIDWEST INSTRUMENT
Item
Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy
Category
Medium & High Operating Pressure Differential Gauges
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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
140-AC-00-OO-30P
Series
140
Type
±3-2-3% Gauge Accuracy, 140
NPT Female
1/4 in
Sensor Type
Diaphragm
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: Back is a medium and high operating pressure differential gauge from the Series 140. It features a diaphragm sensor type, an aluminum housing, and a gauge accuracy of ±3-2-3%. The model 140-AC-00-OO-30P has a 1/4 in NPT Female connection and does not include a certificate of calibration.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 140 differential pressure gauge used for?

The MIDWEST INSTRUMENT Series 140 differential pressure gauge is used to measure the difference in pressure between two points in industrial fluid or gas systems. It is suitable for medium and high operating pressure applications such as filtration monitoring, pump performance, and flow measurement in process plants.

What are the specifications of the MIDWEST INSTRUMENT 140-AC-00-OO-30P?

The MIDWEST INSTRUMENT 140-AC-00-OO-30P is a diaphragm-type differential pressure gauge with ±3-2-3% gauge accuracy. It has a 1/4 in NPT Female back connection, an aluminum housing, and does not include a certificate of calibration. It is part of the Series 140 for medium and high operating pressures.

Where to buy the MIDWEST INSTRUMENT 140 differential pressure gauge worldwide?

You can source the MIDWEST INSTRUMENT 140 differential pressure gauge worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this model.

How to install a MIDWEST INSTRUMENT diaphragm differential pressure gauge?

Install the MIDWEST INSTRUMENT diaphragm gauge by mounting it with the 1/4 in NPT Female connection using compatible fittings. Ensure the high-pressure port connects to the higher pressure side and the low-pressure port to the lower side. Avoid overtightening and verify the diaphragm is not damaged before use.

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. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-AC-00-OO-50P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-AC-00-OO-50P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-AC-00-OO-100P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-AC-00-OO-100P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-30P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-30P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-50P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-50P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-50P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-50P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-100P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-100P)

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This differential pressure gauge from the Series 120 is designed for medium and high operating pressure applications. It features a piston-type sensor, an aluminum housing, and a gauge accuracy of ±3-2-3%. The 1/4 in NPT Female back connection allows for easy installation in systems requiring pressure difference monitoring, such as filter condition, flow measurement, and pump performance
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This differential pressure gauge from the Series 120 is designed for medium and high operating pressure applications. It features a piston-type sensor, an aluminum housing, and a gauge accuracy of ±3-2-3%. The 1/4 in NPT Female back connection allows for easy installation in systems requiring pressure difference monitoring, such as filter condition, flow measurement, and pump performance
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This differential pressure gauge from the Model 142 series features a 4 1/2 in dial and a 1/4 in NPT female back connection. The diaphragm sensor is housed in 316 stainless steel, suitable for measuring medium and high operating pressure differences in industrial processes such as filter monitoring and flow measurement
MIDWEST INSTRUMENT
This differential pressure gauge from the Model 142 series features a 4 1/2 in dial and a 1/4 in NPT female back connection. The diaphragm sensor is housed in 316 stainless steel, suitable for measuring medium and high operating pressure differences in industrial processes such as filter monitoring and flow measurement
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MIDWEST INSTRUMENT
This differential pressure gauge from the Series 140 features a diaphragm sensor and ±3-2-3% gauge accuracy. The housing is constructed from 316 stainless steel, with a 1/4 in NPT female back connection. It is used to measure pressure differences in industrial fluid systems, such as monitoring filter condition or flow across an orifice
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MIDWEST INSTRUMENT
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