Dwyer USA Model 2180 Magnehelic Gage Range 0-180 Inch WC

About Dwyer USA Model 2180 Magnehelic Gage Range 0-180 Inch WC

Description

Dwyer 2180 Differential pressure gage, range 0-180" w.c. (inches of water), minor divisions 5.

Using Dwyer's simple, frictionless Magnehelic Gage movement, it quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It's inexpensive, too.

The Magnehelic Gage 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.

Features

Bezel provides flange for flush mounting in panel.

Clear plastic face is highly resistant to breakage. Provides undistorted viewing of pointer and scale.

Precision litho-printed scale is accurate and easy to read.

Red tipped pointer of heat treated aluminum tubing is easy to see. It is rigidly mounted on the helix shaft.

Pointer stops of molded rubber prevent pointer over-travel without damage.

"Wishbone" assembly provides mounting for helix, helix bearings and pointer shaft.

Jeweled bearings are shock-resistant mounted; provide virtually friction-free motion for helix. Motion damped with high viscosity silicone fluid.

Zero adjustment screw is conveniently located in the plastic cover, and is accessible without removing the cover. O-ring seal provides pressure tightness.

Helix is precision made from an alloy of high magnetic permeability. Mounted in jeweled bearings, it turns freely, following the magnetic field to move the pointer across the scale.

Samarium Cobalt magnet mounted at one end of range spring rotates helix without mechanical linkages.

Calibrated range spring is flat spring steel. Small amplitude of motion assures consistency and long life. It reacts to pressure on diaphragm. Live length adjustable for calibration.

Silicone rubber diaphragm with integrally molded O-ring is supported by front and rear plates. It is locked and sealed in position with a sealing plate and retaining ring. Diaphragm motion is restricted to prevent damage due to overpressures.

Die cast aluminum case is precision made and iridite-dipped to withstand 168 hour salt spray corrosion test. Exterior finished in baked dark gray hammerloid. One case size is used for all standard pressure options, and for both surface and flush mounting.

Blowout plug of silicone rubber protects against overpressure on 15 psig rated models. Opens at approximately 25 psig.

O-ring seal for cover assures pressure integrity of case.

Reliable Differential Pressure Monitoring

Engineered for industrial environments, the Dwyer Model 2180 Magnehelic Gage offers precise monitoring of low differential pressures in air and non-corrosive gases. Its 0180 inch WC range, 2% full-scale accuracy, and external zero adjustment ensure stable and repeatable results. The die-cast aluminum case and silicone-rubber diaphragm provide robust construction for long service life.


Versatile Installation and Accessories

With flexible mounting optionssurface, flush, or pipethe Model 2180 conveniently adapts to most setups. It includes essential accessories like NPT plugs, adapters, flush mounting kits, and a full set of screws, simplifying installation. The unit features both side and back 1/8-inch NPT female connections to suit varied configurations.


Maintenance-Free Mechanical Operation

Designed for pure mechanical functionality, the gauge requires no external power, making it especially suitable for locations where electricity is unavailable. Its external zero adjustment ensures quick recalibration, and the full-face acrylic lens affords easy, reliable analog readings at a glance.