High Temperature Thermocouple Assemblies
Operating Temperatures Up to 4200˚F (2315˚C)
for Vacuum Furnace
Thermocouple Assemblies with
T3/T4 Leadwire Termination and Support Tube
T3/T4 Assembly
An adjustable support tube offers flexibility for immersion adjustment while protecting the sheath
from potential damage during installation. The rigid, thick wall offers additional support when
penetrating the vessel/furnace wall.
This exclusive Conax Buffalo design provides a practically unbreakable connection between
the leadwire and probe lead. The T3 epoxy-filled transition is supplied with Teflon-insulated
extension wire as standard; silicone-impregnated fiberglass insulation is also available.
Standard extension end leads are 24" long (longer leads available on request). When the
progressive descript-xion specifies 24 gauge probe wire, 20 gauge extension wire is standard.
When the progressive descript-xion specifies 30 gauge probe wire, 24 gauge extension wire is
standard. T4 termination provides a stainless steel overbraid for maximum
flexibility and abrasion resistance. Available in all sheath materials
and wire types. Both termination types function
to 300˚ F (150˚ C) continuous temperature.
Progressive Descript-xion Example:
R24-AL18-AL-U-T3 - S 1 A V C 4 - 18.00"
For longer lead length specify, example: 36" leadwire requested - T3 (36")
* Select sealant material:
L = Lava-up to 1600º F (870º C)
G = Grafoil-up to 925º F (495º C)
V = Viton -up to 450º F (232º C)
Notes:
• .125" diameter sheath is available with 30 gauge wire only.
• Alumina sheath is not available in .125" diameter.
• Molybdenum, Tantalum and Tungsten are not available in .375" diameter.
• Lava sealant not recommended for high vacuum.
• Extension grade leadwire.
• Support tube materials: 316SS body and tube, 303SS cap and follower.
• Support tube assembly torque values, see page 14;
S1=MPG Series, S2=PG2 Series, S4=PG4 Series.
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