O`-SIALON THERMOCOUPLE PROTECTION TUBES (TCPT)

O`-SIALON THERMOCOUPLE PROTECTION TUBES (TCPT)

O’-SIALON THERMOCOUPLE
PROTECTION TUBES (TCPT)
O’-SIALON / SILICON CARBIDE THERMOCOUPLES
APPLICATIONS
• Holding furnace dip well, launders and table
tops
• Bail-out crucibles
• Gravity casting furnaces
• Crucible holding furnaces
• Low-pressure diecasting furnaces
• Degassing crucibles
BENEFITS
• Good thermal shock properties
• Non-wetting to aluminium
• Less dross buildup at the metal line
• High oxidation resistance
• High chemical corrosion resistance
O’-Sialon thermocouple protection tubes (TCPTs) are available in a
range of standard lengths and diameters. Their aluminium non-wetting
properties make them ideal for use in the aluminium industry. O’-Sialon
TCPTs also have high levels of resistance towards oxidation, chemical
corrosion and abrasion and have excellent thermal response properties.
• High abrasion resistance
SUPPLY OPTIONS
O’-Sialon TCPTs can be supplied as standard ceramic tubes, or with
a steel head and a fitted thermocouple. Contact your Pyrotek sales
engineer or technical expert for information on complete TCPT
assemblies.
PHYSICAL PROPERTIES
• Excellent response time
• Narrow temperature control band for energy
conservation
Composition
• SiC - 65%
• O’-Sialon - 35%
Bulk Density
2.6 g/cm3 (167.2 lb/ft3)
Apparent
Porosity
18.1%
Modulus of
Rupture
34 MPa
(4931.3 psi)
Coefficient of
Expansion
4.4 x 10-6 /°C
(2.44 x 10-6 /°F)
Thermal
Conductivity
8.9 W/m·K at 720°C
(61.7 BTU·in/ft2·hr·°F at 1328°F)
Continuous
Maximum
Temperature
1300°C (2372°F)
O’-SIALON THERMOCOUPLE PROTECTION TUBES (TCPT)
USE AND CLEANING
• Before use, ensure the O’-Sialon TCPT is dry
• If possible, preheat the TCPT to approximately 400°C (752°F) prior to use
• The continuous maximum use temperature for the TCPT is 1300°C (2372°F)
• O’-Sialon TCPT’s can be damaged by mechanical mishandling. To prevent damage, remove the TCPT from the furnace or
crucible prior to skimming, stirring or using other tools in the metal bath. It is also important to avoid bumping or hitting
the TCPT.
• If possible, remove the TCPT when filling the crucible or furnace
• Clean the TCPT while it is still hot (immediately after it is removed from the molten metal) using a wooden or calcium
silicate tool
AVAILABLE SIZES
Small Diameter
17 mm (0.7 in) OD
9 mm (0.4 in) ID Series
Part ID
Length
mm (in)
OSITPT001
300 (11.8)
OSITPT002
400 (15.7)
OSITPT003
460 (18.1)
OSITPT004
500 (19.7)
OSITPT005
600 (23.6)
OSITPT006
700 (27.6)
OSITPT007
800 (31.5)
OSITPT008
850 (33.5)
OSITPT009
900 (35.4)
OSITPT010
1200 (39.4)
Medium Diameter
28 mm (1.1 in) OD
16 mm (0.6 in) ID Series
Part ID
Length
mm (in)
OSITPT022
400 (15.7)
OSITPT023
460 (18.1)
OSITPT024
500 (19.7)
OSITPT025
600 (23.6)
OSITPT026
700 (27.6)
OSITPT026-1
750 (29.5)
OSITPT027
800 (31.5)
OSITPT028
850 (33.5)
OSITPT029
900 (35.4)
OSITPT030
1000 (39.4)
OSITPT032
1200 (47.2)
PYROTEK INC.
Small Diameter Protection Tube
Medium Diameter Protection Tube
*
* A 14.5 mm (0.6 in) groove is available as a special request.
PAGE 2
O’-SIALON THERMOCOUPLE PROTECTION TUBES (TCPT)
Large Diameter Protection Tube
Large Diameter
45 mm (1.8 in) OD
25 mm (1 in) ID Series
Part ID
Length
mm (in)
OSITPT041
300 (11.8)
OSITPT042
450 (17.7)
OSITPT043
600 (23.6)
OSITPT044
750 (29.5)
OSITPT045
900 (35.4)
OSITPT046
1050 (41.3)
OSITPT047
1200 (47.2)
PINNACLE THERMOCOUPLE PROTECTION TUBES
Pyrotek’s Pinnacle thermocouple protection tubes are specially cast from
O’-Sialon around a steel pipe enforcement for added strength and
responsiveness. Pinnacle TCPTs are specifically designed for more sensitive
temperature measurement, and to perform well in foundry and other high
temperature applications where a balance of sensitivity and durability is
required. With their long service life and O’-Sialon’s non-wetting properties,
the robust, highly durable Pinnacle TCPTs are an excellent alternative to
competitive tubes in temperature measurement, maintenance and product
life.
Threaded
Length
Part ID
Length
Part ID
mm (in)
12.7 mm NPT 12.7 mm BSP
(0.5 in)
(0.5 in)
mm (in)
19 mm NPT
(0.75 in)
19 mm BSP
(0.75 in)
152 (6)
PPTP01
PPTP41
152 (6)
PPTP21
PPTP61
254 (10)
PPTP02
PPTP42
254 (10)
PPTP22
PPTP62
305 (12)
PPTP03
PPTP43
305 (12)
PPTP23
PPTP63
457 (18)
PPTP04
PPTP44
457 (18)
PPTP24
PPTP64
559 (22)
–
PPTP40
559 (22)
PPTP33
PPTP74
610 (24)
PPTP05
PPTP45
610 (24)
PPTP25
PPTP65
762 (30)
PPTP06
PPTP46
762 (30)
PPTP26
PPTP66
914 (36)
PPTP07
PPTP47
914 (36)
PPTP27
PPTP67
1067 (42)
PPTP08
PPTP48
1067 (42)
PPTP28
PPTP68
1219 (48)
PPTP09
PPTP49
1219 (48)
PPTP29
PPTP69
NPT (National Pipe Thread); BSP (British Standard Pipe)
Note: The physical and chemical properties listed represent typical, average values obtained in accordance
with accepted test methods and are subject to normal manufacturing variations. They are supplied as a
technical service and are subject to change without notice.
Contact Information: www.pyrotek.info/locations
Pyrotek Corporate Office Telephone: +1 509-926-6212
www.pyrotek.info • email: [email protected]
Product Type: 177
Commodity Code: 06002
NOV-15-E4-854