


Dwyer Instruments 1223-8-D | U-tube manometer | Range 4-0-4" w.c.
Dwyer® Flex-Tube® U-Tube Manometers combine the robust, long-lasting plastic construction with the inherent precision of the straightforward "U" Tube. Positive, negative, and differential pressures are all measured by these affordable manometers. The flexible, shatter-proof,.375" O.D. transparent butyrate tubing used in the columns is clear. For cleaning, they are easily accessible. White scale channel surrounds the indicator tube to maximize color contrast. High impact polystyrene plastic is extruded to make scales, which are designed to retain columns precisely aligned. For optimal legibility, numbers and graduations on stark white scales are silkscreened in black.

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- Specifications
- Features
- Downloads
Measurement method | Differential |
Measuring Units | inch H2O |
Operating pressure | Max: 4Inch-H2O |
PRESSURE | Max: 4 IN of H2O |
Range | 4-0-4" w.c. |
Sensor Type | Flex Tube |
Series | Family: Dwyer Instruments Sensors, 1223 Series |
Type | U-Tube Manometer |
- Our best U-gage, suitable for both stationary and portable applications.
- Safety traps guard against unintentional over-pressurization and the loss of indicating fluid.
- A molded, high impact acrylic plastic lid with safety traps is firmly glued to the tubing.
- There is a clamp bar and large magnetic clips available.
- Two 3' lengths of flexible Tygon® plastic tubing, two quick shut-off type molded nylon tubing couplings, and two 1/8" pipe thread to tube adapters are examples of standard type "a" connections.
- Static pressure in ducts.
- Laboratories for calibration.
- Monitoring of filters.
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