Product Overview

1/2 [12.70]
1
[25.40]
3/4 DIA
[19.05]
*17
[431.80]
1/8-27 NPT
1/4 ID x 3/8 OD
x 3 FT LONG
VINYL TUBING
[6.35 ID x 9.53 OD
x 914.40]
*1213-15 SHOWN.
1213-7 IS
11 INCHES LONG
OVERALL
GAS PRESSURE MANOMETER
The “Tube in a Tube” Direct Reading Manometer
The Series 1213 Gas Pressure Manometer provides visual indication of pressure of
natural gas up to 15 in w.c. Tap water is used as the sensing media and a magnetic
clip provides temporary or permanent mounting. The 1213 is made of a durable plastic
for years of trouble-free service, and includes 3´ of vinyl tubing and 1/8˝ nylon male
NPT to barb tting.
FEATURES/BENEFITS
• Used to monitor any compatible gas up to 15 in w.c.
• Durable plastic housing for long term use
• Economically priced
APPLICATIONS
• Combustion supply gas monitoring
SPECIFICATIONS
Temperature Limit: 140°F (60°C) maximum.
Pressure Limits: 15 in w.c. (381 mm).
Piping Connections: 1/8˝ male NPT connector provided.
Wetted Materials: Vinyl, PVC and nylon.
Weight: 5 oz (142 g).
Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU
(RoHS II).
The Series Mark II Molded Plastic Air Velocity Meters offer the accuracy and
durability of our Mark II manometers with direct air velocity readings. They are
designed to be used with Dwyer’s Series 160 line of Pitot tubes (not included).
FEATURES/BENEFITS
• Thick white styrene-acrylonitrile housing is virtually indestructible
• Moderate overpressures are accommodated by an overow tank (Model 25) or oat
operated overow traps (Model 40)
• Able to be mounted on any vertical surface
APPLICATIONS
• Measure air velocity in ducts
27
40-AV – Shown with standard swing-out
stand and leveling screw installed.
MOLDED PLASTIC AIR VELOCITY METERS
Low in Cost, Direct Reading Scales Offer 3% Accuracy, For Portable or Stationary Applications
15/64 [5.95] x 13/32 [10.32]
MOUNTING SLOT
10-5/8 [269.88]
5-5/16
[134.95]
MAX
4-5/8
[117.48]
2-31/32
[75.41]
25/32
[19.84]
Ø15/64 [5.95] MOUNTING HOLE
1-1/4
[31.75]
2-1/4 [57.15]
MAX
4 [101.60]
1-7/16
[35.53]
1-1/4
[31.75]
1-1/8
[28.58]
2-1/4
[57.15] MAX
Ø7/32 [5.56] HOLE
5-29/32
[150.02]
4-23/32
[119.86]
3-11/16
[93.66]
5/8
[15.88]
7-13/32 [188.12]
25/32 [19.84]
4-25/32
[121.44]
25/32
[19.84]
7/32 X 13/32
[5.56 X 10.32]
MOUNTING SLOT
OEM SPECIALS
All models of the Dwyer
®
Mark II molded plastic air velocity meters can be supplied
with your logo or special scale in OEM quantities. Consult factory for details. See also
our Digital Manometers and Pitot tubes.
SERIES 1213
SERIES MARK II
181
Manometers,
Portable
TEST & DATA
DWYER INSTRUMENTS, INC. | dwyer-inst.com
MODEL CHART
Model Length (mm)
1213-15 7˝ (177.8)
MODEL CHART
Model Range
Mark II 27
Mark II 28
Mark II 40-250 Pa-AV
0 to 7000 FPM
0 to 10500 FPM
0 to 21 MPS
Note: Pitot tube not included with models above.
ACCESSORIES
Model Description
A-612 Portable stand (for models 27, 28)
TestData_2021.indb 181 7/15/20 2:13 PM