Dwyer Instruments 160 Data sheet
Series
INSERTION LENGTH
1/2 [12.70] SQ
13/16
[20.62]
1/2
[12.70]
TOTAL
PRESSURE
CONNECTION
Ø1/4
[6.35]
Ø1/4
[6.35]
STATIC
PRESSURE
CONNECTION
2-5/8
[66.68]
5 [127.00]
2-41/64 [67.07]
Ø1/8 [3.18]
TOTAL
PRESSURE
Ø5/16
[7.94]
(8) Ø.040 [1.02]
STATIC PRESSURE
HOLES EQUALLY
SPACED
TOTAL PRESSURE
CONNECTION
Ø1/4 [6.350]
Ø1/4 [6.35]
STATIC PRESSURE
CONNECTION
3-5/8
[92.08]
ØB
STATIC PRESSURE
(8) Ø.040 [1.02]
HOLES EQUALLY
SPACED
TOTAL PRESSURE
Ø1/8 [3.18] HOLE
2-35/64
[64.69]
5
[127.00]
1
[25.40]
96˝ 1/2 [12.70]
STATIC PRESSURE
(8) Ø.020 [Ø.51]
HOLES EQUALLY
SPACED
TOTAL PRESSURE
Ø3/64 [Ø1.19] HOLE
MODEL 166
1 [25.4]
MODEL 167
1/2 [12.7]
MODEL 166
2 [50.8]
MODEL 167
1 [25.4]
Ø1/8
[3.18]
6-1/2 OR 12-1/2
Ø1/4
[Ø6.35]
Ø1/8 [Ø3/18]
Ø1/4 [Ø6.35]
STATIC PRESSURE
CONNECTION
1/2
[12.70]
1/2
[12.70]
2-1/2
[63.50]
Ø1/8
[3.18]
TOTAL PRESSURE
CONNECTION
1-1/2
[38.10]
1/2
[12.70]
160
Stainless Steel Pitot Tubes
ASME Design Meets AMCA and ASHRAE Codes
Standard Model 160 Pitot Tube
Ideal for use with our precision manometers and air velocity gages, Dwyer®Pitot Tubes are
constructed from corrosion resistant stainless steel for a lifetime of service. ASME design
meets AMCA and ASHRAE specifications for maximum accuracy over a wide variety of
flow conditions. No correction factors required as ASHRAE tip design yields a calibration
TEST EQUIPMENT
factor of 1. ASHRAE design needs no calibration! Permanent, stamped insertion depth
graduations on sides of 160 series facilitate accurate positioning. Static pressure port is
parallel to sensing tube allowing quick, easy alignment of tube with air flow. Low sensitivity
to misalignment gives accurate reading even when tube is misaligned up to 15 degrees.
Various standard sizes are available for use in ducts as small as 4˝ dia, or as large as 36 ft
dia. A universal model fits user supplied 3/4˝schedule 40 (standard) pipe in any length.
Several convenient mounting options are available for permanent installations.
• No calibration needed
• Precisely located, burr-free static pressure holes
• Hemispherical tip design, best for accuracy if imperfectly aligned and nearly impossible
to damage
Pitot Tubes
• Long lasting 304 SS construction
• Silver soldered connections for leak-proof operation
• Coefficient of “1”
• 5/16˝ models rated to 1500°F
• Extended static connection helps guide tip within recommended 15° of air flow direction
• Inch graduations on sides of 160 series to quickly determine exact insertion depth
®
• Dwyer
• Use 1/8˝ models in ducts as small as 4˝, 5/16˝ models in ducts 10˝ or larger
• Optional mounting gland or split flange make permanent installation fast and simple
Air Velocity Calculator, direct reading flow charts and instructions included
160 Series
160 Series
96˝ and longer
with Stiffener
166/167 Series
Series 160 is designed to meet:
• ASME “Fluid Meters” 6th Ed.
• ANSI/AMCA 210-99
• ANSI/ASHRAE 51-1999
• British Standard 1042
432
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
ACCESSORIES
No. A-158 Split Flange Mounting can be added to any
®
No. 160 Standard Pitot Tube. Cadmium plated
Dwyer
steel. Gasket is pattern for mounting holes. Secure flange
loosely to tube, adjust tube depth and tighten screws.
Gasket of 1/16˝ Neoprene fits tightly around tube and
against duct for leak-proof seal. Nuts, washers included.
No. A-159 Mounting Gland — No. A-159 Mounting Gland
— Versatile adapter slips on any Series 160, 5/16˝ standard
Pitot tube made after Dec. 1990. Two-part stainless steel
fitting slides over tube and provides permanent, secure
mounting. Where duct interior is accessible, use the
washers and jam nut supplied. For blind applications or in
thicker materials, use model A-156 flange mounting plate.
Once tube is adjusted to proper depth and angle, tighten
smaller hex bushing to lock position. Graphite bushing
inside assures leak-proof seal even at higher temperatures.
TFE bushing also available. Note: For full insertion with this
fitting, order next longer Pitot tube.
A-159 Mounting Gland is used for both duct mounting
and flange mounting. To flange mount, the A-159 must
be used with the A-156 flange mounting plate.
No. A-397 Step Drill. For fast, convenient installation of
Pitot tubes in sheet metal ducts. No center punch needed;
automatic de-burring. Drills six sizes from 3/16˝-1/2˝ in
1/16˝ increments.
Standard 5/16˝ Diameter
Model
160-8
160-12
160-18
160-24
160-36
160-48
160-60
ACCESSORIES & OPTIONS
A-156, Flange Mounting Plate 1/2˝ female NPT
A-158, Split Flange
A-159, Mounting Gland
A-397, Step Drill
1/8˝ male NPT compression fitting, mounting option for Series 166/167.
Add -CF suffix (166-6-CF).
Insertion Length
8-5/8˝
12-5/8˝
18-5/8˝
24-5/8˝
36-5/8˝
48-5/8˝
60-5/8˝
Longer Length w/ Stiffener
Model
160-96
Model
166-6
166-12
167-6
167-12
Insertion Length
96˝
Pocket Size 1/8˝ Diameter
Insertion Length
6˝
12˝
6˝
12˝
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