High-Temperature Thermocouples
for temperatures up to 2000 °C and above
Product Information 160
Custom-tailored designs available
for many applications
Suitable for oxidizing, reducing,
neutral atmosheres and vacuum
Special advantages:
www.roesseldresden.de www.roesselwerne.de www.rossel.nl
For temperatures up to 2000 °C and higher or
for highly corrosive and/or reducing atmospheres
we supply specially developped high-temperature
thermocouples.
To a large extent these
thermocouples are used in
aeronautics, research laboratories and in industry.
For the various areas of application suitable sheath
materials,
thermocouple combinations and insulation
materials are available.
Only the precious-metal types S, R and B are standardized
internationally in IEC 60 584-1. Type V is
described in ASTM E 1751, types C, D and G in
ASTM E 988 and type A in GOST 8.585.
In the revised version of IEC 60 584-1, which is available
as a draft, the inclusion of types A (A1) and C
(AE) is planned.
For the manufacturing of the measuring tips and
protection tubes new technologies had to be developed
in most cases, as the strain at very high
temperatures is quite considerable due to various
factors.
Only materials suitable and specially tested for
these applications are used. The useability of the
various materials depends mainly on the process
conditions.
The use of high-temperature sheath materials in an
oxidizing atmosphere is possible only up to a limited
(low) temperature. Excluded from this are sheath
materials of platinum alloys. The table on page 3 of
this product information serves as an indication.
In the case of long
thermocouples it can be advantageous
for cost reasons to have a transition to a
different material – e.g. INCONEL or stainless steel.
The insertion length of the part exposed to the high
temperature can be dimensioned as requested.
For special applications it is possible on request to
mount several
thermocouples into a common protection
tube. The position of the measuring points
for profile
thermocouples can be chosen within a
wide range.
Pressure-/vacuum-proof bushings
available in many forms
Transition elements variable within
a wide range
Profile
thermocouples available on
request
