Specifications(PDF)
These inexpensive manometersmeasure positive, negative and differential pressures. Dwyer®Flex-Tube® U-Tube Manometers combine the inherent accuracy of thesimple “U” Tube with the durability of tough,long-lasting plastic construction. Columns are of .375″ O.D.flexible and shatter proof clear butyrate tubing. They are easilyaccessible for cleaning. Indicating tube is backed by white scalechannel to provide maximum color contrast. Scales are extrudedhigh impact polystyrene plastic, formed to hold columns in perfectalignment. Stark white scales have graduations and numberssilkscreen-printed in black for maximum legibility.
You can choose from numerous modelsand features including over-pressure safety traps, in full scaleranges from 8″ to 36″ of water or mercury. All aresuitable for total pressures to 100 psi – for determining velocityand static pressures, leakage, fan and blower efficiency, filterresistance, and gas pressures. Ideal wherever a portable, directreading manometer is needed. Standard ranges and markings asshown, or special ranges, colors, logos and brand names for OEMquantity orders are available.
Minor Divisions of1/10″ water column (or 2mm water column on metric units) aresilkscreened in jet black on stark white scale for positivedefinition. Easy to read, even at a distance, they are acryliccoated for permanence. All models are furnished with one 3/4 ouncebottle of fluorescein green color concentrate with special wettingagent for W/M models, or 3/4 ounce bottle of red gage oil for“D” units. Series 1221 Manometer – Oursimplest, lowest cost basic U-gage. A dependable U-tube manometerthat withstands hard use and provides accurate, high visibilityreadings. For use with water, mercury or red gage oil. For mercuryfilled manometers, a scale clamp bar, Dwyer® Part No. A-363(available as an extra for Series 1221 – and standard on Series1222) is recommended. One pair of carrying plugs and a pair ofnon-kink vinyl tube connectors are included with each manometer. Series 1222 Manometer – Allthe features of the 1221 plus magnetic clips for mounting to anyvertical steel surface, and clamp bar to insure against U-tubeslipping. (Especially recommended for manometers used withmercury.) Both magnets are easily removed and replaced at theuser’s convenience. Series 1223 Manometer – Ourfinest U-gage – for either portable or stationary use. Safetytraps prevent loss of indicating fluid in case of accidentalover-pressure. Tubing is permanently bonded to a molded, highimpact acrylic plastic top that contains safety traps. Largemagnetic clips and clamp bar are provided. Standard type“a” connections include two rapid shut-off type moldednylon tubing connections, two 3′ lengths of flexible Tygon®plastic tubing, and two 1/8″ pipe thread to tube adapters
| EXAMPLE | 1221 | 8 | W/M | AT | Series 1221-8-W/M-ATU-Tube Manometer, range 4-0-4″ w.c. using water/mercury,with aluminum tag. |
| SERIES | 1221 1222 1223 |
U-Tube Manometer U-Tube Manometer U-Tube Manometer |
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| RANGE | 8 12 16 20 24 36 M200 M300 M400 M600 M1000 2000PA 3000PA 4000PA 5000PA 6000PA 9000PA |
4-0-4″ w.c. 6-0-6″ w.c. 8-0-8″ w.c. 10-0-10″ w.c. 12-0-12″ w.c. 18-0-18″ w.c. 100-0-100 mm w.c. 150-0-150 mm w.c. 200-0-200 mm w.c. 300-0-300 mm w.c. 500-0-500 mm w.c. 1000-0-1000 Pa 1500-0-1500 Pa 2000-0-2000 Pa 2500-0-2500 Pa 3000-0-3000 Pa 4500-0-4500 Pa |
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| FLUID | W/M D |
Inches of Water/Mercury Inches of Water Using Red Gage Oil |
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| OPTIONS | AT NIST B C D E |
Aluminum Tag NIST Certificate of Calibration Type B Connections (available with 1223 only) Type C Connections (available with 1223 only) Type D Connections (available with 1223 only) Type E Connections (available with 1223 only) |
ACCESSORIES:
- A-101 – 3/4 oz dispenser bottle of red gage oil, .826 sp. gr.
- A-102 – 4 oz bottle of red gage oil, .826 sp. gr.
- A-103 – 1 pt bottle of red gage oil, .826 sp. gr.
- A-104 – 1 qt bottle of red gage oil, .826 sp. gr.
- A-126 – 3/4 oz dispenser bottle fluorescein green color concentrate.
