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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 line. It features a diaphragm sensor type, a gauge accuracy of ±3-2-3%, and a…

SKU 3G-OTH-175114

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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Technical Specifications

MIDWEST INSTRUMENT
Manufacturer Part Number
140-SA-00-OO-50P
Series
140
Type
±3-2-3% Gauge Accuracy, 140
NPT Female
1/4 in
Sensor Type
Diaphragm
Gauge Accuracy
±3-2-3%
Housing Material
316 Stainless Steel
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 line. It features a diaphragm sensor type, a gauge accuracy of ±3-2-3%, and a 316 Stainless Steel housing. The gauge has a 1/4 in NPT Female connection and is identified by manufacturer part number 140-SA-00-OO-50P.

Frequently Asked Questions

What is a MIDWEST INSTRUMENT differential pressure gauge used for?

This gauge measures the difference in pressure between two points in a system, commonly used in filtration, flow monitoring, and pump applications across industrial plants. Its diaphragm sensor handles medium to high operating pressures, making it suitable for process control in HVAC, chemical, and oil & gas environments.

What are the specifications of the MIDWEST INSTRUMENT 140-SA-00-OO-50P?

The Series 140 gauge has a diaphragm sensor, ±3-2-3% accuracy, and a 316 stainless steel housing. It features a 1/4 in NPT female back connection. The manufacturer part number is 140-SA-00-OO-50P. Certificate of calibration is not included.

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

3G Electric supplies and delivers the MIDWEST INSTRUMENT Series 140 differential pressure gauge worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure the gauge reaches your facility, whether in North America, Europe, Asia, or the Middle East.

How to install a MIDWEST INSTRUMENT diaphragm differential pressure gauge?

Mount the gauge with the 1/4 in NPT female connection using compatible fittings and sealant. Ensure the high-pressure port connects to the higher pressure side and the low-pressure port to the lower side. Avoid overtightening to prevent damage to the 316 stainless steel housing. Refer to manufacturer guidelines for specific torque values.

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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MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-30P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
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MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-30P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SA-00-OO-100P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
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MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-50P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
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). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-30P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-30P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-100P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-SC-00-OO-100P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: 316 Stainless Steel; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
MIDWEST INSTRUMENT Differential Pressure Gauge: Back, 1/4 in NPT Female, ±3-2-3% Gauge Accuracy, 140 (MPN 140-AC-00-OO-50P). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: Aluminum; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.
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). Key specifications — Sensor Type: Diaphragm; Series: 140; Housing Material: Aluminum; Certificate of Calibration: Not Included; Gauge Accuracy: ±3-2-3%.

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