Series 1230/1235 Flex-Tube® Well-Type Manometers

Series 1230/1235 Flex-Tube® Well-Type Manometers

Series 1211/1212 Slack Tube® Manometers

Series 1211/1212 Slack Tube® Manometers

Series 1227 Dual Range Flex-Tube® U-Inclined Manometer

0.2" Minor Scale Divisions, Low-Cost Pressure Indication

The Series 1227 Dual Range Flex-Tube® U-Inclined Manometers are versatile, low cost manometers that can be used to read high-range pressure on the right leg or as an inclined manometer to read low-range pressure on the bottom leg. It is made of a sturdy, clear plastic and offers direct readings as a U-tube or an inclined gage. Magnetic clips are attached to the unit to hold it in position on any steel duct surface and instructions are conveniently printed directly on the scale. See the Support Library tab for Safety Data Sheets.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Fan status
  • Filter monitoring
Starting at $161.00
Grouped product items
Model Description Availability* Qty Price
1227 Dual range U-inclined manometer, 0-16" w.c. vertical, .20-0-2.6" inclined. (English units) Less Than 1 Week*
$161.00
1227M Dual range U-inclined manometer, 0-400 mm vertical, -5-0-70 mm inclined. (Metric units) Less Than 1 Week*
$161.00

Features

  • Reads 0 to 16 in w.c. as a U-tube and -0.20 to 0 to 2.6 in w.c. as an inclined gage
  • Clear, shatterproof indicating tube provides overpressure protection
  • Black markings on a stark white scale for positive definition

Questions

Question
What are the principle advantages of red gage fluid over water for use in manometers?
Answer
Red gage fluid is slow to evaporate, won't freeze, is more readable and produces slightly expanded scales for better reading resolution.
Question
Is routine maintenance required for a Dwyer red gage fluid type manometer?
Answer
Yes. The zero point should be checked periodically as well as the fluid level. After a year of service, particularly with dirty air, the fluid should be replaced to assure that specific gravity changes are not affecting the accuracy of the reading.
Question
Will the water manometers freeze?
Answer
Yes, if the temperature drops below 32 degrees Fahrenheit, the fluid in the manometer will freeze. The fluid used in "W/M" style manometers is water-based with a small amount of fluorescent green fluid to enhance the meniscus. The other gage fluids have a lower freezing point, however, it is recommended that the manometers be stored above 32 degrees Fahrenheit.
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Model Description Availability* Price
A-101 1 oz dispenser bottle of red gage fluid, .826 sp. gr. 1-3 days*
$10.25
A-102 4 oz bottle of red gage fluid, .826 sp. gr. 1-3 days*
$20.00
A-103 1 pt bottle of red gage fluid, .826 sp. gr. 1-3 days*
$44.50
A-104 1 qt bottle of red gage fluid, .826 sp. gr. 1-3 days*
$83.50
A-220 Clear flexible vinyl tubing is easily inspected, and is therefore best for test applications where a possibility of fluid entering the tubing exists. 3/16" ID x 5/16" OD, lengths to 500'; 45 psi maximum pressure @ 73°F. 1-3 days*
$0.01
A-319 Flexible red PVC connector, 3/16" ID rubber tubing to 1/4" ID plastic tube for 1221,1222 and 1227 manometers. 1-3 days*
$5.50
A-339 Adapter, brass, 1/8" NPT to 3/16" rubber and 1/8" ID plastic tubing. 1-3 days*
$5.10
A-344 Terminal tube, brass, 1/4" diameter tube, 8" length. 1-3 days*
$6.10
A-356 Gage plug with retainer loop, polyethylene plastic, for 1/4" ID tubing, slip loop over tubing OD and insert plug for seal. 1-3 days*
$4.80
A-357 Thermometer and terminal tube holder, stainless steel wire. 1-3 days*
$6.50
A-364 Magnet assembly for 1222 manometers, 2 required (3 required for 1222-36 and M-1000). 1-2 Weeks*
$9.50
1227-CC

Vinyl carrying case for the 1227 manometer.

1-2 Weeks*
$26.50