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Magnehelic Differential Pressure Gauges

The Dwyer Magnehelic Series 2000 design resists shock, vibration and over-pressures.
Suitable for use in filter monitoring, air velocity (with Dwyer Pitot Tube), blower vacuum monitoring, fan pressure indication, duct room or building pressures and clean room positive pressure indication.

Consult the attached pdf for full specifications. For technical assistance and a quote contact Teltherm.

The Magnehelic is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment.

Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
Service: Air and non-combustible, compatible gases. (Natural Gas option available.)
Accuracy: ±2% of FS (±3% on -0, -100PA, -125PA, -10MM and ±4% on -00, -60PA, -6MM ranges), throughout range at 70°F (21.1°C).

Mounting Orientation: Diaphragm in vertical position. Consult Teltherm for other position orientations.


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+64 9 633 0040
5 / 343 Church Street | Onehunga
Auckland 1061, New Zealand