Dwyer® Magnehelic® 2020 2000 Differential Pressure Gauge, 0 to 20 in WC, 1/8 in FNPT Connection, 4 in Dial, 0.01 %
Select the SERIES 2000 Magnehelic® Gauge for a versatile low differential pressure gauge with a wide choice of 81 models and 27 options to choose from. Using Dwyer's simple, frictionless Magnehelic® gauge movement, it quickly indicates air or noncorrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration, over-pressures and is weatherproof to IP67. Select the -HA High Accuracy Magnehelic® Gauge option for an accuracy within 1% of full scale, located below in the Product Configurator. Also included with the -HA option at no extra cost are a mirrored scale overlay and a 6 point calibration certificate.
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BrandDwyer®
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Manufacturer Part Number2020
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CountryUSA
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Temperature Rating20 to 140 deg F
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MaterialDie Cast Aluminum Case
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Pressure Range0 to 20 in WC
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Connection Size1/8 in FNPT
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Accuracy0.01 %
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Series2000
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Dial Diameter4 in
- Easy to read gauge through undistorted plastic face permits viewing from far away
- Durable and rugged housing and high quality components combine to provide long service life and minimized down time
- High accuracy option is twice as accurate as the standard Magnehelic® gauge
- 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
- Patented design provides quick response to pressure changes means no delay in assessing critical situations
- 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
- 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 hr 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
- Over-pressure protection
- Blowout plug is comprised of a rubber plug on the rear which functions as a relief valve by unseating and venting the gauge interior when over pressure reaches approximately 25 psig (1.7 bar)
- O-ring seal for cover assures pressure integrity of case
- Samarium cobalt magnet mounted at one end of range spring rotates helix without mechanical linkages
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UNSPSC41112413
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Standards/ApprovalsGOST-R Certified|RoHS Compliant
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Warranty1 Year
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Warranty Information
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Instruction/Installation Manual
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Specification Sheet
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Dwyer® Magnehelic® 2020 2000 Differential Pressure Gauge, 0 to 20 in WC, 1/8 in FNPT Connection, 4 in Dial, 0.01 %
Select the SERIES 2000 Magnehelic® Gauge for a versatile low differential pressure gauge with a wide choice of 81 models and 27 options to choose from. Using Dwyer's simple, frictionless Magnehelic® gauge movement, it quickly indicates air or noncorrosive gas pressures--either positive, negative (vacuum) or differential. The design resists shock, vibration, over-pressures and is weatherproof to IP67. Select the -HA High Accuracy Magnehelic® Gauge option for an accuracy within 1% of full scale, located below in the Product Configurator. Also included with the -HA option at no extra cost are a mirrored scale overlay and a 6 point calibration certificate.
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