Overview
The Dwyer Instruments 2050 is a Series 2000 Magnehelic® differential pressure gauge engineered for accurate, maintenance-free pressure measurement. The Dwyer Series 2000 is a high accuracy magnehelic differential pressure gage with frictionless gage movement that can quickly indicate air or noncorrosive gas pressures. The 2050 model covers a 0–50 inches of water column (in. w.c.) range, making it suitable for low-pressure applications across HVAC, air filtration, laboratory, and industrial settings.
Key Features
- No calibration needed — the gauge arrives ready to install and measure
- Accuracy: +/-2% of F.S. for reliable, repeatable readings
- The design resists shock, vibration and over-pressures
- Precisely located, burr-free static pressure holes for accurate sampling
- Analog dial display with clear, easy-to-read scale
- Frictionless Magnehelic® movement for quick response to pressure changes
Technical Specifications
- Pressure Range: 0–50 in. w.c. (inches of water column)
- Pressure Rating: -20″ Hg to 15 PSIG
- Overpressure: Relief plug open at 25 PSIG
- Ambient Temperature: 20° – 140°F
- Connections: 1/8″ NPT female high and low pressure taps
- Display Type: Analog
- Accuracy: ±2% of full scale
- Clear plastic face is highly resistant to breakage. Provides undistorted viewing of pointer and scale.
Typical Applications
The Dwyer 2050 Magnehelic gauge is commonly deployed in:
- HVAC systems — monitoring duct pressure, filter differential, or room pressurization
- Air filtration systems — tracking filter loading and replacement intervals
- Clean rooms and negative pressure environments
- Laboratory and test equipment setups
- Industrial gas and air pressure monitoring
- Water and wastewater treatment facilities
Compatibility & Replacements
Compatible With
- Systems requiring 0–50 in. w.c. pressure measurement capability
- 1/8″ NPT connection standard (high and low pressure ports)
- HVAC ductwork, blower discharge, and filter housings with 1–2″ pipe mounting capability
- Any air or non-corrosive gas pressure monitoring loop
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Dwyer 2050 can replace any equivalent Magnehelic gauge with matching range (0–50 in. w.c.) and pressure tap configuration.
Works With
- Includes aluminum surface mounting bracket with screws, two 5 ft. lengths of 1/4″ aluminum tubing, two static pressure tips and two molded plastic vent valves, integral compression fittings on both tips and valves.
- Standard field instrumentation toolkits and pressure measurement systems
- Dwyer Magnehelic accessories and enclosures (Series 2000 compatible)










