 Series
2000 Dwyer MagnehelicDifferential Pressure
Gage
Select the Dwyer
Magnehelic® gage for high accuracy measurement of
differential pressure of air and non-combustible compatible
gases. Gauge is guaranteed within 2% of full scale.
Select from a wide choice of 81 models available to suit your needs
precisely. 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.
Features of the Series 2000
Dwyer Magnehelic Differential Pressure Gage
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Bezel provides flange for
flush mounting in panel.
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Clear plastic face is highly
resistant to breakage. Provides undistorted viewing of pointer and
scale.
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Precision litho-printed scale
is accurate and easy to read.
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Red tipped pointer of heat
treated aluminum tubing is easy to see. It is rigidly mounted on
the helix shaft.
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Pointer stops of molded
rubber prevent pointer over-travel without damage.
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"Wishbone" assembly provides
mounting for helix, helix bearings and pointer shaft.
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Jeweled bearings are
shock-resistant mounted; provide virtually friction-free motion for
helix. Motion damped with high viscosity silicone fluid.
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Zero adjustment screw is
conveniently located in the plastic cover, and is accessible
without removing the cover. O-ring seal provides pressure
tightness.
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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.
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Samarium Cobalt magnet
mounted at one end of range spring rotates helix without mechanical
linkages.
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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.
Specifications of the Series 2000
Dwyer Magnehelic Differential Pressure Gage
-
Service: Air and
non-combustible, compatible gases. (Natural Gas option
available.)
-
Wetted Materials: Consult
factory.
-
Housing: Die cast aluminum
case and bezel, with acrylic cover, Exterior finish is coated gray
to withstand 168 hour salt spray corrosion test.
-
Accuracy: ±2% of full scale
(±3% on -0, -100PA, -125PA, -10MM and ±4% on -00, -60PA, -6MM
ranges), throughout range at 70°F (21.1°C).
-
Pressure Limits: -20" Hg. to
15 psig.† (-0.677 bar to 1.034 bar); MP option; 35 psig
(2.41 bar), HP option; 80 psig (5.52 bar).
-
Overpressure: Relief plug
opens at approximately 25 psig (1.72 bar), standard gages
only.
-
Temperature Limits: 20 to
140°F.* (-6.67 to 60°C).
-
Mounting Orientation:
Diaphragm in vertical position. Consult factory for other position
orientations.
-
Process Connections: 1/8"
female NPT duplicate high and low pressure taps - one pair side and
one pair back.
-
Weight: 1 lb 2 oz (510 g); MP
& HP 2 lb 2 oz (963 g).
-
Standard Accessories: Two
1/8" NPT plugs for duplicate pressure taps, two 1/8" pipe thread to
rubber tubing adapters and three flush mounting adapterswith
screws. (Mounting and snap ring retainer substituted for 3 adapters
in MP & HP gage accessories.)
Options
and Accessories for the Dwyer Static Pressure
Gage
Options:
- ASF Adjustable
Signal Flag
- HP High Pressure
Option
- LT Low
Temperatures to -20°F
- MP Med. Pressure
Option
- SP Setpoint
Indicator
- Scale Overlays
Red, Green, Yellow, Mirrored or Combination, Specify Locations
Accessories:
-
A-299 - Mounting bracket, flush mount Magnehelic®
gage in bracket. Bracket is then surface mounted. Steel with gray
hammertone epoxy finish.
-
A-300 - Flat aluminum bracket for flush mounting
Magnehelic® gage.
-
A-310A - 3-way vent valve, plastic, 1/8" NPT to
1/4" metal tubing, 80 psi rating, replaces former Model A-310
(brass).
-
A-432 - Plastic carrying case for Magnehelic® gage
of standard range, except high pressure connection, includes 9 ft
(2.7m) of 3/16" ID rubber tubing, stand-hang bracket & terminal
tube with holder.
-
A-321 - Brass safety relief valve, protects
Magnehelic® gage or Photohelic® switch/gage against over pressure
due to regulator failure, etc, opens at 10 psi. Mounts in tee
fitting. 1/4" NPT(M) (use two for DP application).
Select Units of Measure to meet your
needs:
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Description |
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Price |
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Dwyer Magnehelic Differential Pressure Gauge. Inches Water Column |
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$77.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. Inches Water Column - Zero Center |
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$74.95
Pricing
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Dwyer Magnehelic Dfferential Pressure Gauge. Pounds per Square Inch (PSI) |
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$67.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. English/Metric (" w.c. / Pa) |
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$67.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. Pascals (Pa) |
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$73.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. Pascals (Pa) - Zero Center |
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$74.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. Kilopascals (KPa) |
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$63.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. Kilopascals (KPa) - Zero Center |
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$74.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. mm w.c. |
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$73.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. mm w.c. - Zero Center |
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$99.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. cm w.c. |
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$63.95
Pricing
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Dwyer Magnehelic Differential Pressure Gauge. cm w.c. - Zero Center |
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$78.95
Pricing
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