Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

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 142. It features a diaphragm sensor type, an aluminum housing, and a gauge accuracy…

SKU 3G-OTH-175141

Also listed as: 142AA00OO100H · 142 AA 00 OO 100H

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
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
142-AA-00-OO-100H
Series
142
Type
±3-2-3% Gauge Accuracy, 142
NPT Female
1/4 in
Sensor Type
Diaphragm
Gauge Accuracy
±3-2-3%
Housing Material
Aluminum
Certificate of Calibration
Not Included

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 142. It features a diaphragm sensor type, an aluminum housing, and a gauge accuracy of ±3-2-3%. The manufacturer part number is 142-AA-00-OO-100H, and a certificate of calibration is not included.

Frequently Asked Questions

What is the MIDWEST INSTRUMENT 142 differential pressure gauge used for?

The MIDWEST INSTRUMENT Series 142 differential pressure gauge is used to measure pressure differences in medium and high operating pressure systems. Common applications include monitoring filter condition, flow measurement, and level indication in industrial processes such as HVAC, oil and gas, and water treatment.

What are the specifications of the MIDWEST INSTRUMENT 142-AA-00-OO-100H?

The MIDWEST INSTRUMENT 142-AA-00-OO-100H is a Series 142 differential pressure gauge with a diaphragm sensor, aluminum housing, and ±3-2-3% gauge accuracy. It has a 1/4 in NPT female back connection. A certificate of calibration is not included. The manufacturer part number is 142-AA-00-OO-100H.

Where to buy the MIDWEST INSTRUMENT 142 differential pressure gauge worldwide?

You can source the MIDWEST INSTRUMENT 142 differential pressure gauge through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for availability and lead time on this item.

How to install a MIDWEST INSTRUMENT diaphragm differential pressure gauge?

Install the MIDWEST INSTRUMENT Series 142 gauge by connecting the 1/4 in NPT female ports to the process lines, ensuring proper sealing with thread tape. Mount the gauge in a vertical position for accurate readings. Avoid over-torquing the aluminum housing. Refer to the manufacturer's manual for specific installation guidelines.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-200H)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-200H)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-5P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-5P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-50H)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-50H)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-30H)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-30H)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-10P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-10P)
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-20P)
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 142 (MPN 142-AA-00-OO-20P)

More from MIDWEST INSTRUMENT

View all MIDWEST INSTRUMENT parts
This differential pressure gauge from the Series 140 uses a diaphragm sensor and aluminum housing to measure pressure differences in fluid or gas systems. It has 1/4 in NPT Female back connections and a gauge accuracy of ±3-2-3%. Typical applications include filtration monitoring, pump performance checks, and flow measurement in process plants
MIDWEST INSTRUMENT
This differential pressure gauge from the Series 140 uses a diaphragm sensor and aluminum housing to measure pressure differences in fluid or gas systems. It has 1/4 in NPT Female back connections and a gauge accuracy of ±3-2-3%. Typical applications include filtration monitoring, pump performance checks, and flow measurement in process plants
The MIDWEST INSTRUMENT Series 140 differential pressure gauge uses a diaphragm sensor to measure pressure differences in medium and high operating pressure systems. It features a 316 stainless steel housing, ±3-2-3% gauge accuracy, and a 1/4 in NPT female connection. Typical applications include filtration monitoring, pump performance checks, and flow measurement in industrial processes
MIDWEST INSTRUMENT
The MIDWEST INSTRUMENT Series 140 differential pressure gauge uses a diaphragm sensor to measure pressure differences in medium and high operating pressure systems. It features a 316 stainless steel housing, ±3-2-3% gauge accuracy, and a 1/4 in NPT female connection. Typical applications include filtration monitoring, pump performance checks, and flow measurement in industrial processes
This differential pressure gauge from the Model 142 series features a diaphragm sensor and aluminum housing. It has a 4 1/2 in dial with 1/4 in NPT female back connections. Suitable for measuring pressure differences in industrial fluid or gas systems, such as filtration monitoring and flow measurement. Certificate of calibration not included
MIDWEST INSTRUMENT
This differential pressure gauge from the Model 142 series features a diaphragm sensor and aluminum housing. It has a 4 1/2 in dial with 1/4 in NPT female back connections. Suitable for measuring pressure differences in industrial fluid or gas systems, such as filtration monitoring and flow measurement. Certificate of calibration not included
This differential pressure gauge from the Model 142 series uses a diaphragm sensor to measure pressure differences between two points in fluid or gas systems. It features a 2 1/2 in dial, 1/4 in NPT female connection, and a 316 stainless steel housing suitable for medium and high operating pressures. Applications include filtration monitoring, pump performance checks, and process control
MIDWEST INSTRUMENT
This differential pressure gauge from the Model 142 series uses a diaphragm sensor to measure pressure differences between two points in fluid or gas systems. It features a 2 1/2 in dial, 1/4 in NPT female connection, and a 316 stainless steel housing suitable for medium and high operating pressures. Applications include filtration monitoring, pump performance checks, and process control
This differential pressure gauge from the Series 130 uses a diaphragm sensor to measure pressure differences between two points. It features a 316 stainless steel housing, ±5% gauge accuracy, and a 1/4 in NPT female back connection. Typical applications include monitoring filter condition, checking pump performance, and measuring flow in industrial fluid systems
MIDWEST INSTRUMENT
This differential pressure gauge from the Series 130 uses a diaphragm sensor to measure pressure differences between two points. It features a 316 stainless steel housing, ±5% gauge accuracy, and a 1/4 in NPT female back connection. Typical applications include monitoring filter condition, checking pump performance, and measuring flow in industrial fluid systems
This differential pressure gauge from the Series 140 uses a diaphragm sensor to measure pressure differences between two points in fluid or gas systems. It features an aluminum housing, 1/4 in NPT female back connection, and ±3-2-3% gauge accuracy. Suitable for medium and high operating pressure applications such as filtration monitoring, pump performance, and flow measurement
MIDWEST INSTRUMENT
This differential pressure gauge from the Series 140 uses a diaphragm sensor to measure pressure differences between two points in fluid or gas systems. It features an aluminum housing, 1/4 in NPT female back connection, and ±3-2-3% gauge accuracy. Suitable for medium and high operating pressure applications such as filtration monitoring, pump performance, and flow measurement
This differential pressure gauge from the Series 120 is designed for medium and high operating pressure applications. It features a piston sensor type, an aluminum housing, and ±3-2-3% gauge accuracy. The 1/4 in NPT Female back connection allows for easy installation. Typical uses include monitoring filter condition, flow measurement, and pump performance in industrial processes and fluid handling systems
MIDWEST INSTRUMENT
This differential pressure gauge from the Series 120 is designed for medium and high operating pressure applications. It features a piston sensor type, an aluminum housing, and ±3-2-3% gauge accuracy. The 1/4 in NPT Female back connection allows for easy installation. Typical uses include monitoring filter condition, flow measurement, and pump performance in industrial processes and fluid handling systems
This differential pressure gauge from the Series 142 uses a diaphragm sensor to measure pressure differences in fluid or gas systems. It features a 316 stainless steel housing, 1/4 in NPT female back connection, and ±3-2-3% gauge accuracy. Suitable for medium to high operating pressure applications such as filtration monitoring and flow measurement
MIDWEST INSTRUMENT
This differential pressure gauge from the Series 142 uses a diaphragm sensor to measure pressure differences in fluid or gas systems. It features a 316 stainless steel housing, 1/4 in NPT female back connection, and ±3-2-3% gauge accuracy. Suitable for medium to high operating pressure applications such as filtration monitoring and flow measurement