Product Overview

452
Static Pressure Sensors
ACCESSORIES
STATIC PRESSURE TIPS
DWYER INSTRUMENTS, INC. | dwyer-inst.com
A-489 (4˝)
A-491 (6˝)
A-493 (8˝)
A-302F-A
A-302F-B
A-302F-C
Flange view
A-307 A-308
A-414
A-301
A-302
A-303
A-305
A-306-A
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
MODEL CHART
Model Description
The stainless steel static pressure tips are used to measure static pressures in ducts or rooms. They are to be connected to differential pressure switches and transmitters.
Two static sensors are used in applications where differential pressure is required across a lter or coil. These sensors include a mounting ange with integral rubber gasket
and two screws for simplifying mounting on a duct.
A-302F-A
A-302F-B
A-302F-C
A-489
A-491
A-493
4˝ hook style SS static pressure tip with mounting ange
6˝ hook style SS static pressure tip with mounting ange
8˝ hook style SS static pressure tip with mounting ange
4˝ straight SS static pressure tip with mounting ange
6˝ straight SS static pressure tip with mounting ange
8˝ straight SS static pressure tip with mounting ange
Designed for simplied installation, these are easy to install, inexpensive, and provides accurate static pressure sensing in smooth air at velocities up to 1500 FPM.
A-307
A-307-SS
A-308
A-414
Static pressure tting, for 1/4˝ metal tubing connection
SS static pressure tting, for 1/4˝ metal tubing connection
Static pressure tting, for 3/16˝ and 1/8˝ ID plastic or rubber tubing
SS clean room pressure sensor
These static pressure tips are ideal for applications such as sensing the static pressure drop across industrial air lters and refrigerant coils. Here the probability of air
turbulence requires that the pressure sensing openings be located away from the duct walls to minimize impingement and aspiration, and thus ensure accurate readings. For
a permanent installation of this type, the Dwyer No. A-301 or A-302 static pressure tip is used. It senses static pressure through radially-drilled holes near the tip and can be
used in air ow velocities up to 12,000 FPM. The angled tips shown have 4˝ insertion depth. Each has four radially drilled .040˝ sensing holes. All except Model A-303 mount
in 3/8˝ hole in duct. For portable use, a magnet holds No. A-303 in place.
A-301
A-301-A
A-301-B
A-301-C
A-301-SS
A-302
A-302-A
A-303
Static pressure tip, for 1/4˝ metal tubing connection
Static pressure tip, same as A-301 with 6˝ insertion depth
Static pressure tip, same as A-301 with 8˝ insertion depth
Static pressure tip, same as A-301 with 12˝ insertion depth
SS static pressure tip, for 1/4˝ metal tubing connection
Static pressure tip, for 3/16˝ and 1/8˝ ID plastic or rubber tubing
Static pressure tip, same as A-302 with 6˝ insertion depth
Portable static pressure tip, for 3/16˝ ID rubber or plastic tubing with 4˝ insertion
A-305 low resistance static pressure tip is designed for use in dust-laden air and for rapid response applications. It is recommended where a very low actuation pressure is
required for a pressure switch or indicating gage — or where response time is critical.
A-305
A-305-SS
A-306
A-306-A
Static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8˝ NPT pipe thread
for pressure connection
SS static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8˝ NPT pipe
thread for pressure connection
Outdoor static pressure sensor. Provides average outdoor pressure signal for reference in building pressurization applications. Includes sensor, 50´ vinyl tubing,
mounting bracket and hardware. Red sensor
Outdoor static pressure sensor. Provides average outdoor pressure signal for reference in building pressurization applications. Includes sensor, 50´ vinyl tubing,
mounting bracket and hardware. Gray sensor
Accessories_2021.indb 452 7/14/20 10:01 AM