At Mid-West Instrument, we manufacture high-accuracy bellows-type differential pressure gauges with built-in features that support safe, long-term operation. One of the most important components in our bellows-style design is the bidirectional pressure relief valve. This valve is critical to protecting both the gauge and the surrounding system from damage caused by overpressure in either direction. […]
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The Bidirectional Pressure Relief Valve of a Mid-West Instrument Bellows-Type Differential Pressure Gauge
September 30, 2025
The Allowable Leakage Rate of Differential Pressure Piston Type Gauges
September 15, 2025At Mid-West Instrument, we manufacture differential pressure gauges with tight internal tolerances to ensure precision performance and long-term reliability. A key component of our design is the piston assembly, which must allow for accurate movement while controlling media bypass. One of the critical performance characteristics we test and certify is the allowable leakage rate. Because […]
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Backflow Testing Certification Protects Public Health
September 13, 2025Backflow is the unwanted reversal of water flow that pulls or pushes non-potable water into a clean water line. It can happen in homes, commercial buildings, and industrial facilities when pressure changes occur. Cross-connections between the potable system and sources of contaminants make that risk real. When backflow occurs, the result can be severe. Water […]
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The Importance of Being RoHS Compliant
August 30, 2025RoHS stands for Restriction of Hazardous Substances, an environmental regulation enacted by the European Union. It restricts or eliminates the use of specific hazardous materials, such as lead, mercury, cadmium, hexavalent chromium, and certain flame retardants (PBB, PBDE) and plasticizers (DEHP, BBP, DBP, DIBP), in electrical and electronic equipment. At Mid-West Instrument, our differential pressure […]
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What is a Reciprocating Compressor?
August 15, 2025The reciprocating compressor, also known as the piston compressor, is widely utilized across various industries due to its versatility, durability, and ability to achieve high-pressure compression. These compressors operate by using pistons driven by a crankshaft, repeatedly compressing gas or air within cylinders. Accurate monitoring of pressure and performance parameters is essential for optimizing compressor […]
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The Square Root Dial on a Mid-West® Instrument High Accuracy Differential Pressure Gauge
July 30, 2025At Mid-West Instrument, we manufacture high-accuracy differential pressure gauges for critical measurement applications, including flow monitoring. In many of these flow applications, a standard linear scale is not sufficient because of the mathematical relationship between flow rate and differential pressure. To address this, we offer gauges with square root dials. These specialized dials are designed […]
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The Role of Piston Type Diaphragm Differential Pressure Gauges in Compressed Air Monitoring
July 15, 2025At Mid-West Instrument, we manufacture a wide range of differential pressure gauges, including piston-type models designed for demanding industrial environments. Accurate pressure monitoring with piston-type differential pressure gauges is crucial for effective compressed air monitoring and maintaining system efficiency.. Piston-type differential pressure gauges are ideal for these applications because they provide reliable measurement of pressure […]
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Pressure Taps: The Primary Connection Point
June 30, 2025At Mid-West Instrument, we manufacture differential pressure gauges designed to measure the difference between two pressure points in a system. To gather these readings, the system must be equipped with properly installed pressure taps. These taps act as access points for fluid pressure to be transmitted to a measurement device. Understanding how pressure taps work—and […]
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Factors That Affect Differential Pressure Gauge Readings
June 15, 2025At Mid-West Instrument, we manufacture differential pressure gauges that provide accurate, reliable readings in a wide range of industrial environments. However, proper performance depends not only on gauge quality but also on correct installation and environmental conditions. Several external factors can influence gauge readings and, if not accounted for, may lead to false readings or […]
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