 |
 |
 |
Dwyer
Flex-Tube® Well Type Manometers are designed to meet  the need for a
direct reading single column instrument providing highly accurate
pressure readings; positive, negative or differential. Unlike other
makes, Dwyer manometers have no hidden wells or packing glands. These
instruments are constructed of shatter-proof clear plastic permanently
bonded to well assemblies with leakproof glued joints. Well assemblies
are precisely machined from solid acrylic plastic. Overpressure safety
traps assure protection against loss of fluid. Heavy pure white acrylic
plastic scales have sharp black silk screen figures and graduations
sealed with clear mylar coating. Scales are adjusted with quick-acting
positive mechanism. Heavy heat treated aluminum back plated have durable
gray hammerloid finish. These manometers are rated to 100 psig (6.89
bar). Not recommended for vacuum service beyond 5 in. Hg (68 in w.c.)
• SERIES NO. 1230 MANOMETERS (wall mounting type), Fig. 9-1,
have mounting holes for easy installation. They may also be used as
portable manometers and can be hung or attached to any vertical steel
surface by magnetic mounting clips. All parts are fully visible and
readily accessible for cleaning.
• SERIES NO. 1235 MANOMETERS (panel mounting type), Fig. 9-2.
All pressure connections are made from the back, with the micrometer
zero scale adjustment in front at the base of the liquid column. |
• MULTI-TUBE MANOMETERS, of the same design as the No. 1235
series, are available with any number of tubes mounted on with all
pressure connections made from the back. Reading columns are on 1 ½"
centers.
• SPECIAL SCALES Psi and metric scales, available in aluminum
panel. Higher ranges and other special scales in Benelex panel.
STANDARD ACCESSORIES:
Includes one set of type "a" connections, .826 sp. Gr. Red
gage oil for "D" style or fluorescein green dye concentrate
with wetting agent for "W/M" styles, two 3 ft. length of clear
vinyl tubing and two 1/8" NPT tubing adapters.
TO ORDER:
Please indicate scale desired. Specify "WM" with Model Number
for inches of water, using water or inches of mercury, using mercury;
and "D" 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 indicated,
"WM" style manometers will be shipped.
|
|
NO.
1230 SERIES WALL MOUNTING |
|
|
Model
No.
|
Scale
in
Inches of
Water or
Mercury
|
DIMENSIONS
|
Mercury
Req'd
to Fill
(Wt.)
|
A
|
B
|
C
|
W/M
|
D
|
1230-8
1230-12
1230-16
1230-20
1230-24
1230-36
|
0-8
0-12
0-16
0-20
0-24
0-36
|
2
¾
2 ¾
2 ¾
2 ¾
2 ¾
2 ¾
|
15
3/16
19 3/8
23 ½
27 9/16
32 7/8
43 1/8
|
16
¾
21 7/8
27
32 1/8
37 3/16
51 ¼
|
1
½
1 ½
1 ½
1 ½
1 ½
1 ½
|
12
oz.
14 oz.
16 oz.
18 oz.
20 oz.
26 oz.
|
|
|
NO.
1235 SERIES PANEL MOUNTING |
|
|
Model
No.
|
Scale
in
Inches of
Water or
Mercury
|
DIMENSIONS
|
Mercury
Req'd
to Fill
(Wt.)
|
A
|
B
|
C
|
W/M
|
D
|
1235-8
1235-12
1235-16
1235-20
1235-24
1235-36
|
0-8
0-12
0-16
0-20
0-24
0-36
|
2
¾
2 ¾
2 ¾
2 ¾
2 ¾
2 ¾
|
17
3/8
20 7/8
25 1/8
29 5/16
33 9/16
45 1/16
|
18
½
23 ¼
28 7/16
33 9/16
38 13/16
51 15/16
|
2
½
2 ½
2 ½
2 ½
2 ½
2 ½
|
12
oz.
14 oz.
16 oz.
18 oz.
20 oz.
26 oz.
|
|
