Dwyer Instruments SERIES 1230, SERIES 1235 Catalog Page
B
[69.85]
[63.50]
Ø3/16
HOLES
3-9/16
SERIES 1230 & 1235
FLEX-TUBE® WELL-TYPE MANOMETERS
Manometers, Stationary
Dwyer
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 tubing permanently bonded to well assemblies
with leak-proof glued joints. Well assemblies are precisely machined from solid acrylic
plastic. Over-pressure safety traps assure protection against loss of uid. Scales are
adjusted with quick-acting positive mechanism. These manometers are rated to 100
psig (6.89 bar). Not recommended for vacuum service beyond 5˝ Hg (68 in w.c.).
FEATURES/BENEFITS
• High-accuracy pressure measurement suitable for laboratory or general industry
• Precision built assures device meets the highest standards
• No moving parts mean no calibration or nothing to wear out
• Over-pressure trap prevents liquid from being expelled from gage, preventing
disruption of operation
APPLICATIONS
• Laboratory and industrial service applications
[4.76]
MOUNTING
TYP
A
2-3/4
Series 1235 panel mounting Series 1230 wall mounting
®
Series 1230 & 1235 Flex-Tube® Well Type Manometers are designed
2-1/2
2 PLACES
1-3/8
[34.93]
TYP
2-3/4
[69.85]
[90.49]
A
1-1/2
[38.10]
3/4
[19.05]
MODEL CHART
Model
1230-8-W/M
1230-12-W/M
1230-16-W/M
1230-20-W/M
1230-36-W/M
1235-20-W/M
Note: Water/mercury models.
For 0.826 S.P. gage uid
models change -W/M to a -D.
ACCESSORIES - STANDARD
Description
Include one set of type “a” connections, .826 sp. gr. red gage uid for “D” style
or uorescein green dye concentrate with wetting agent for “W/M” styles, two 3 ft
lengths of clear vinyl tubing and two 1/8˝ NPT tubing adapters.
Model
1230-8
1230-12
1230-16
1230-20
1230-36
Model
1235-20 0-20 29-5/16 33-9/16 18 oz
Scale in
Inches of
Water or Mercury
0-8
0-12
0-16
0-20
0-36
Scale in
Inches of
Water or Mercury
OPTIONS
To order
add sufx: Description
-NIST NIST traceable calibration certicate
Example: 1222-8-W/M-NIST
Dimensions
A
W/M D
15-13/16
19-3/8
23-1/2
2 7- 9 / 1 6
43-1/8
Dimensions
A
W/M D
16-3/4
21-7/8
27
3 2 - 1 / 8
51-1/4
Mercury
Required
to Fill (Wt.)
12 oz
14 oz
16 oz
18 oz
26 oz
Mercury
Required
to Fill (Wt.)
DWYER INSTRUMENTS, INC. 30
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