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 • [email protected]
International Technical and Sales Offices:
Australia,
+61-3-9335-6449 •
China,
+86-21-3950-9510 •
France,
+33 (0) 3073-2425 •
Germany,
+49 (0) 7253-9400-0 •
Italy,
+39 (0) 2 458-8841 •
Japan,
+81-3-3518-6630 •
Korea,
+82-2-575-9804 •
Malaysia,
+60-3-7980-7741 •
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
