About Dwyer 2000-25CM Magnehelic Differential Pressure Gauge

Dwyer 2000-25CM Magnehelic Differential Pressure Gauge

Model: 2000 Differential Pressure Gage, Range 0-25 CM W.C., Minor Divisions .50.

Bezel provides Flange For Flush Mounting in Panel. Clear Plastic Face is Highly Resistant to Breakage. Provides Undistorted Viewing of Pointer and Scale.

Dwyer 2000 MAGNEHELIC, DIFFERENTIAL PRESSURE GAUGE 0-25 CM

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.

Superior Accuracy for Critical Applications

Engineered with a diaphragm sensing element, the Dwyer 2000-25CM delivers 2% full scale accuracy, making it suitable for clean rooms, filter performance checks, and airflow monitoring. Its precision helps maintain controlled environments and ensures efficient system operation.


Simple Installation with User-Friendly Design

The gauge is equipped with 1/8 NPT female connections and includes necessary adapters and mounting hardware. The external zero adjustment screw and clear acrylic front allow for easy calibration and quick pressure readings without disassembly.


Reliable Operation Across Challenging Conditions

Built to withstand pressures from -20 to 15 psig and temperatures ranging from -7C to +60C, this gauge is ideal for industrial environments. Its rugged construction and quality materials provide long-term, dependable performance.