These inexpensive manometers measure positive, negative and differential
pressures. Dwyer Flex-Tube?/sup> U-Tube Manometers combine the inherent
accuracy of the simple "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 easily accessible for cleaning. Indicating tube
is backed by white scale channel to provide maximum color contrast. Scales are
extruded high impact polystyrene plastic, formed to hold columns in perfect
alignment. Stark white scales have graduations and numbers silkscreen-printed
in black for maximum legibility.
You can choose from numerous models and features including over-pressure safety
traps, in full scale ranges from 8" to 36" of water or mercury. All are
suitable for total pressures to 100 psi - for determining velocity and static
pressures, leakage, fan and blower efficiency, filter resistance, and gas
pressures. Ideal wherever a portable, direct reading manometer is needed.
Standard ranges and markings as shown, or special ranges, colors, logos and
brand names for OEM quantity orders are available.
Minor Divisions of 1/10" water column (or 2mm water column on metric units) are
silkscreened in jet black on stark white scale for positive definition. Easy
to read, even at a distance, they are acrylic coated for permanence. All models
are furnished with one ?ounce bottle of fluorescein green color concentrate
with special wetting agent for W/M models, or ?ounce bottle of red gage oil
for "D" units.
Series 1221 Manometer, Fig. 10-1. Out simplest, lowest cost basic U-gage. A
dependable U-tube manometer that withstands hard use and provides accurate,
high visibility readings. For use with water, mercury or red gage oil. For
mercury filled manometers, a scale clamp bar, Dwyer Part No. A-363 (available
as an extra for Series 1221 - and standard on Series 1222) is recommended. Pair
of carrying plugs and a pair of non-kink vinyl tube connectors included with
each manometer.
Series 1222 Manometer, Fig. 10-2. All the features of the 1221 plus magnetic
clips for mounting to any vertical steel surface, and clamp bar to insure
against U-tube slipping. (Especially recommended for manometers used with
mercury.) Both magnets are easily removed and replaced at the user's
convenience.
Series 1223 Manometer, Fig. 11-1. Our finest U-gage - for either portable or
stationary use. Safety traps prevent loss of indicating fluid in case of
accidental over-pressure. Tubing is permanently bonded to a molded, high impact
acrylic plastic top that contains safety traps. Large magnetic clips and clamp
bar are provided. Standard type "a" connections include two rapid shut-off type
molded nylon tubing connections, two 3' lengths of flexible Tygon plastic
tubing, and two 1/8" pipe thread to tube adapters.
STANDARD ACCESSORIES
(For Series 1221-8-W/M)
Two plastic carrying plugs; Two flexible plastic tubing connectors for
attachment of 3/16" rubber or plastic tubing without looking. ?ounce
bottle .826 sp. gr. red gage oil furnished for "D" style manometers.
Fluorescein green dye concentrate furnished with "W/M" style manometers.
Mercury is available at extra cost.
STANDARD ACCESSORIES
(For Series 1222-8-W/M)
Two magnetic mounting clips; tube clamp; Two plastic carrying plugs and Two
flexible plastic tubing connectors for attachment of 3/16" rubber or plastic
tubing without kinking. ?ounce bottle .826 sp. gr. red gage oil furnished
for "D" style manometers. Fluorescein green dye concentrate furnished
with "W/M" style manometers. Mercury is available at extra cost.
STANDARD ACCESSORIES
(For Series 1223-8-W/M)
Magnetic mounting clips; tube clamp and Type "a" connections consisting of two
rapid shut off molded nylon tubing connectors; two 1/8" pipe thread to tube
adapters; two 3' lengths of Tygon plastic tubing. (See Page 26 for alternate
connections) ?ounce bottle .826 sp. gr. red gage oil furnished for "D" style
manometers. Fluorescein green dye concentrate furnished with "W/M" style
manometers. Mercury is available at extra cost.
How To Order:
1. Indicate series such as 1222. 2. Indicate range desired such as: 8, 12 or
M200. 3. Specify "W/M" with model number for inches* of water , using water or
inches* of mercury, using mercury. Specify "D" with model number for inches*
of water using .826 sp. gr. red gage oil. Red gage oil is often preferred for
readings in inches of water because of the longer scale and slower evaporation
rate. This lessens the need for frequent re-zeroing and refilling. (If not
otherwise indicate, "W/M" style manometers will be shipped.) 4. For Series 1223
only, state the connection option desired if other than standard type "a". For
example, 1223-12-D-"b" manometer is a Series 1223, range 12" w.c. (scale 6-0-
6), using red gage oil with type "b" connections.
*metric units are in millimeters.
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