Dwyer Magnehelic Differential Pressure Gauge

The Dwyer Magnehelic Differential Pressure Gauge is a trusted solution for accurate and reliable low differential pressure measurement. Designed for HVAC systems, cleanrooms, filtration monitoring, and industrial processes, this gauge delivers precise readings even in demanding environments. Its large, easy-to-read dial and durable construction make it a preferred choice for engineers and technicians worldwide.

Whether you need to measure air flow, monitor filter performance, or ensure cleanroom compliance, the Dwyer Magnehelic Differential Pressure Gauge offers consistent performance and long-lasting reliability. With multiple models and ranges available, you can select the perfect gauge to match your application requirements. Choose Dwyer for proven accuracy, minimal maintenance, and professional-grade quality you can depend on.

The Dwyer Magnehelic® differential pressure gauge is a common instrument used for measuring low differential pressures, particularly in applications like HVAC, cleanrooms, and air filters. It’s known for its accuracy, reliability, and ease of use. Magnehelic gauges are designed to resist shock, vibration, and over-pressures, and are often weatherproof, making them suitable for various industrial settings

Why Choose the Dwyer Magnehelic Differential Pressure Gauge?

The Dwyer Magnehelic Differential Pressure Gauge is designed for accurate measurement of low differential pressure in air and non-combustible gases. Trusted by professionals worldwide, it delivers consistent performance for HVAC, filtration, and cleanroom applications.

Key features of the Dwyer Magnehelic Differential gauge :

Frictionless movement:
The gauge uses a frictionless Dwyer Magnehelic Differential gauge  movement, which translates pressure changes into an easily readable display
Wide range of applications:
It’s used to measure fan and blower pressures, filter resistance, air velocity, and more. 
Weatherproof and durable:
The gauges are designed to withstand harsh conditions, including shock, vibration, and over-pressures
Accuracy and reliability:

Dwyer Magnehelic Differential gauges are known for their accuracy and reliability, making them a trusted industry standard. 

Specific applications of Differential gauges:
  • HVAC systems:

    They are commonly used to monitor filter pressure drop, duct pressure, and other critical parameters in ventilation systems. 

  • Cleanrooms:

    Dwyer Magnehelic Differential gauges help monitor pressure differentials within cleanrooms to ensure proper airflow and prevent contamination. 

  • Air filters:

    They are used to measure the pressure drop across air filters, indicating when they need to be replaced. 

  • Industrial processes:
    They can be used to monitor pressures in various industrial processes, including liquid levels, fluid amplifier systems, and more. 

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