Dwyer Magnehelic Differential Pressure Gauge
By Dwyer
The Dwyer Magnehelic Differential Pressure Gauge is the trusted choice for monitoring positive, negative, or differential air pressure with exceptional accuracy. Engineered for reliability without requiring external power, it’s ideal for use in isolation rooms, hospitals, and temporary installations. The rugged design resists shock, vibration, and harsh conditions, making it a dependable solution for airflow resistance measurement and pressure diagnostics.
Features
- Accurate, Power-Free Pressure Monitoring: Offers accuracy within 2% of full scale standard (1% with high-accuracy option) with no need for electrical power, making it perfect for critical environments like hospitals or remote setups where consistent monitoring is essential.
- Engineered for Harsh Conditions: Built with a die-cast aluminum housing, weatherproof to IP67, and shock-resistant jeweled bearings, the Magnehelic gauge is highly resistant to vibration, overpressure, and environmental extremes, ensuring long-term durability and minimized downtime.
- Easy to Read and Calibrate: Features a clear plastic face for undistorted viewing, a precision litho-printed scale, and a red-tipped pointer for high visibility. The convenient zero adjustment screw is accessible without removing the cover, simplifying calibration and maintenance.
- Smart, Rugged Internal Design: Patented wishbone assembly with frictionless helix motion, blowout protection plug, and silicone rubber diaphragm with integrated O-ring ensures accurate readings and component protection even under pressure surges or mounting challenges.
Details
- Accuracy: ±2% of full scale (±1% with –HA High Accuracy option)
- Pressure Range: Positive, negative, or differential (available in 81 standard models)
- Construction: Die-cast aluminum case with clear plastic lens; iridite-dipped and corrosion tested
- Protection: IP67 weatherproof; overpressure relief via rear blowout plug
- Display: Red-tipped aluminum pointer, precision scale, mirrored overlay (–HA option)
- Mounting: Surface or flush mount with flange bezel
- Diaphragm: Silicone rubber with integrated O-ring seal
- Dimensions: Standard case size for all models; fits 24” x 24” and 12” x 24” filter systems with included mounting hardware