Technical
Description Infroheat's electric heating
tape is a parallel circuit tape heater producing a continuous
series of heating zones, each approximately 1 metre
long, thus providing a constant watts per metre along
the entire length.
Though
the tape may be terminated at any point, we recommend
that the tape be terminated just past a connecting joint,
thus minimising any cold zone.
PRODUCT
DATA
Product
Ref
Volts
(ac)
Watts/mtr
Heating
Zone
Length (mm)
Max.
Circuit
Length (mtrs)
IHP20/120
110/120
20
1000
50mtrs
IHP25/120
110/120
25
1000
40mtrs
IHP20/230
220/230
20
800
110mtrs
IHP25/230
220/230
25
1000
95mtrs
IHP35/230
220/230
35
850
80mtrs
IHP40/230
220/230
40
790
70mtrs
SPECIFICATIONS
Table 1
Heating
element
Nickel
Chromium
Conductor
and size
Copper
1.2 mm2
Inner
construction
Silicone
Rubber
Outer
sheath (approx. dimensions)
cross section
6mm
x 11.5mm
Maximum
continuous exposure
temperature
200°C
Minimum
continuous exposure
temperature
-60°C
Approvals
Standard
Manufactured
to conform to BS 6351 Grade 22 (Highest
level of mechanical and water resistance).
Table
2
Pipe
Size
Inch
(Nominal
Bore)
mm Insulation
Temperatures
up to 100°C
thickness 25mm
1/2
13
0.29
1
25
0.38
1
1/2
40
0.48
2
50
0.57
3
75
0.77
4
100
0.94
6
150
1.31
8
200
1.61
Choosing
the Infroheat tape for your application
To assist you in selecting the correct tape for your requirements,
follow these guide lines:
i) Establish the pipe size, required operating temperature and
the lowest ambient temperature.
ii) Calculate the difference between the required temperature
and the lowest ambient temperature (T).
Multiply by the relevant factor from table 2.
Example
Pipe
size
3
inch
Insulation
thickness
25
mm
Lowest
expected temperature
-
5 ° C
Operating
temperature required
+
40 °C
T
= 40°C - (-5°C) =
45°C
Multiply
factor for 3" pipe from table 2 is 0.77
Heat loss per metre of pipe = 45 x 0.77 = 34.65 W/M
So the suitable tape for the above application will be Thermgard
IHP 35/230 Straight traced along the pipe.
T).