OD x ID
6x4, 8x5, 10x6, 12x8, 15x10, 20x15,
24x18, (mm) etc.
Insulating Tubes
2/4/6 Holes OD
2.8, 3.5, 5.5, 8.5, etc.
Tempsens provide wide range of ceramic tubes and insulators used in thermocouples, resistance thermometers and many other applications.
We mainly supply recrystallised alumina 99.7%, type KER 710(C-799) .
KER 710 is a pure oxide ceramic consisting of more than 99.7% Al2O3, with traces of MgO,Si2O and Na2O, which is fire resistant up to 1900°C and has a melting point of 2050°C. It is the best ceramic material, with an insulation resistance of 107Ω x cm at 1000°C and good strength under alternating temperatures, high thermal conductivity and relatively low thermal expansion.
There are many different diameters (outer and bore), various lengths of insulator available and different number of bores/ configurations are also available.
Some configurations available are:
Solid alumina ceramic rod type insulators are also available.
Properties of Tempsens Ceramic Tubes:
Made of Pure oxide ceramic material
High thermal conductivity
Good strength under alternating temperatures
Relatively low thermal expansion
Available in various length as per customer requirements
Available in different configuration – 2,4,6 holes
Maximum temperature range upto 1700°C
Ceramic tube
OD X ID (mm)
Length (mm)
6 X 4
350 to 2300
8 X 5
350 to 2300
10 X 6
350 to 2300
12 X 8
350 to 2300
15 X 6
350 to 2300
15 X 10
350 to 2300
20 X 10
350 to 2300
20 X 15
350 to 2300
24 X 12
350 to 2300
24 X 18
350 to 2300
Standard Size Available are 350, 530, 600, 650, 740, 900, 1030, 1200, 1430, 2000, 2300mm
Insulating tubes
OD
Configuration
Length(mm)
2.8
2/4/6 Holes
350 to 2300
3.5
2/4/6 Holes
350 to 2300
5.5
2/4/6 Holes
350 to 2300
8.5
2/4/6 Holes
350 to 2300
Standard Size Available are 350, 530, 600, 650, 740, 900, 1030, 1200, 1430, 2000, 2300mm
Ceramic beads
OD(mm)
Configuration
Length(mm)
3.6
2/4 holes
25
8.5
2/4 holes
25
11
2/4 holes
25
12
2/4 holes
25
13.5
2/4 holes
25
Material Properties
Properties
Units
Rubalit 717
DIN VDE 0335/IEC 672
-
C 799
Al2O3 - content
%
99.7
Color
-
yellow
Specific Gravity
Kg/dm3
3.85
Water absorption
%
0
Flexural Strength
N/mm2
360
Max. Temp. use*
°C
1700
Thermal Conductivity
W/m °K
28
Thermal Expansion linear Coefficient
20-100°C
20-300°C
20-600°C
20-1000°C
X10-6 /°C
-
-
-
5.4
6.5
7.7
8.5
Volume resistivity
200°C
400°C
600°C
Ohm.cm
-
-
1015
1013
1011
Temperature Stability
Good/satisfactory
Chemical resistivity
Very good
Te Value
°C
1000
Main areas of Application
- Protection tubes
- Insulating rods
- insulating tubes for thermo elements
- Resistance temp. detectors
- Tube for chemical process application
