Watlow Electric Freeflex Dépliant

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Quote and Ordering Information
For a quote, please request, fill out and return a FREEFLEX 
application data sheet.
To order, please specify:
Fluid Type
Inlet Temperature
Outlet Temperature
Flow Rate
Voltage - 
Typically less than 36 volts 
Watts/ft - See chart below for typical values
Maximum Allowable Outside Surface Temperature
Tube Size
1
32
in. (0.792 mm) I.D. x 
1
16
in. (1.59 mm) O.D.
1
16
in. (1.59 mm) I.D. x 
1
8
in. (3.18 mm) O.D.
1
8
in. (3.18 mm)  I.D. x 
3
16
in. (4.76 mm) O.D.
3
16
in. (4.76 mm) I.D. x 
1
4
in. (6.35 mm) O.D.
• Other (specify size)
Tube Material
• Teflon
®
(standard)
• Silicone rubber
• Others upon request
Tube Length - 12 to 120 in. (305 to 3048 mm) typical
• Total
• Heated
• Unheated (specify)
Tube Fittings
• No fittings (1 in. (25 mm) bare tubing at each end)
• Other (specify)
Tube Flexing
• Static (to route around components in system)
• Dynamic (subject to more continuous flexing)
• Occasional, frequent or continuous
Note: Minimum recommended flexing radius 
1
32
in. (0.792 mm) I.D. x 
1
16
in. (1.59 mm) O.D. Teflon
®
1 in. (25 mm)
1
16
in. (1.59 mm) I.D. x 
1
8
in. (3.18 mm) O.D. Teflon
®
1
1
2
in. (38 mm)
1
8
in. (3.18 mm) I.D. x 
3
16
in. (4.76 mm) O.D. Teflon
®
2 in. (51 mm)
3
16
in. (4.76 mm) I.D. x 
1
4
in. (6.35 mm) O.D. Teflon
®
3 in. (76 mm)
Heater Leads
• One at each end
• Both at one end
• Standard lead insulation (UL
®
Style 1180 white Teflon
®
)
• Other insulation (specify)
Heater Lead Length
• Standard 12 in. (305 mm) w/customer end stripped/tinned 
1
2
in. (13 mm)
• Other (specify)
Heater Lead Exit Direction
• Inboard/outboard 
Temperature Sensor
• Standard thermocouple (#30 AWG Teflon
®
- Type J)
• Thermistor (specify) 10K
Ω at 25˚C (72˚F) standard
• Other temperature sensors size/types (specify)
• Sense heater element or tube temperature
Sensor Lead Exit Direction
• Inboard/outboard
Temperature Sensor Lead Length
• Standard 12 in. (305 mm)
• Other (specify)
W/ft  W/m         O.D. Temperature 
°
C
(°F) (Ambient)
0
0
21
(70) 
5
1.5
60
(140)
10
3.0
99
(210)
15
4.6
129
(265)
20
6.1
154
(310)
25
7.6
171
(340)
O.D. Temperature vs. Watts/Meter
 
O
.D
.
T
e
m
p
e
ra
tu
re
F
)
350
300
250
200
150
100
50
0
0
5
10
15
20
25
30
O.D. Temperature vs. Watts/Foot
177
149
121
93
66
38
10
1.5
3.0
4.6
6.1
7.6
O
.D
.
T
e
m
p
e
ra
tu
re
C
)
O.D. Temperature vs. Watts/Unit Length
 
Dry Tube - No Flow
Water Temperature Rise/Foot vs. Flow Rate vs. Watt Density  (
1
/
16
 in. (1.59 mm) I.D. Tube)
Flow Rate of Water (mL/Minute)
W
a
te
r
T
e
m
p
e
ra
tu
re
R
is
e
F
/F
o
o
t)
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
164
146
128
109
91
73
55
36
18
0
W
a
te
r
T
e
m
p
e
ra
tu
re
R
is
e
C
/M
e
te
r)
50.0
37.5
25.0
12.5
W/ft
164
123
82
41
W/m
Water Temperature Rise °F/Foot 
Flow Rate (mL/minute)
W/ft
10
30
50
100
50.0
82
29
19
10
37.5
64
22
14
7
25.0
41
16
10
5
12.5
22
8
5
3
Water Temperature  Rise  °C/Meter 
Flow Rate (mL/minute) 
W/m
10
30
50
100
164
149
52
35
18
123
116
40
26
13
82
75
29
18
9
41
40
15
9
5
Water Temperature Rise/Length Versus Flow Rate Versus Watt Density
FREEFLEX Outside Diameter Temperature Versus Watts/Length
To be automatically connected to the nearest North American Technical and Sales Office:
1-800-WATLOW2 • www.watlow.com • info@watlow.com
International Technical and Sales Offices:
Australia, +61-3-9335-6449 • China, +86-21-3950-9510 • France, +33 (0) 3073-2425 • 
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Mexico, +52 (442) 217-6235 • Shanghai, +86-21-3950-9504 • Singapore, +65-6777-1266 • Spain, +34 91 675 1292 • Sweden, +46 35-27-11-66 •
Taiwan, +886-7-288-5168 • United Kingdom, +44 (0) 115-964-0777