Thermocouple Brochure - English (Letter) - Pyrotek

THERMOCOUPLE PROTECTION TUBES
O’-Sialon
O’-Sialon is a premium grade silicon carbide held by a matrix of O’-Sialon. This tube has
high strength at both room temperature and working temperature up to 2732°F (1500°C).
O’-Sialon protection tubes are available in a variety of sheath diameters and lengths.
• Non wetting to aluminium
• Less dross build up at metal line
• High resistance to oxidation
• High chemical corrosion resistance
• High abrasion resistance
• Excellent response time
• Narrow temperature control band for energy
conservation
Pinnacle
Pyrotek’s Pinnacle thermocouple protection tubes are made from O’-Sialon, a long-life,
non-wetting, temperature-sensitive (bonded silicon carbide) thermocouple protection tube
for foundry, casthouse and other temperature-sensitive applications. The robust properties
of the Pinnacle thermocouple protection tubes is a superior alternative to competitive
tubes in maintenance and product life. Available in several lengths and sizes.
• Non-wetting to aluminium and its alloys • Superior response time
• Less dross build up at metal line
• Long life
• Narrow temperature control band for • Excellent thermal shock
energy conservations
resistance
RFM ®
Pyrotek’s RFM ® thermocouple protection tubes are engineered to provide a robust, nonwetting
product that results in long service life. By joining two well known proprietary
products, O’-Sialon and RFM, Pyrotek achieved an unequaled thermocouple protection
tube.
• Non-wetting to aluminium and its alloys
• Less dross build up at metal line
• Superior response time
• Narrow temperature control band for energy conservation
• Excellent thermal shock resistance
• Long life
Cast Iron – Plain and Enamel
Pyrotek has determined the best microstructure and chemistry for optimum protection
against metal attack. Pyrotek ultrasonically tests 100% of all tubes produced to ensure
wall thickness concentricity.
• Enamel coating provides for good oxidation resistance
• Excellent durability
• Long life from increased thickness
Other Protection Tubes
Pyrotek stocks a wide variety of protection tubes to meet all molten metal and industrial
applications.
• Clay bonded silicon carbide
• Ceramic bonded alumina refractory
• Recrystallized silicon carbide
• Sialon and silicon nitride
• Alumina and mullite
• Various alloys

Metallurgical SERVICES
Process Reviews
Process Benchmarking
Assessing performance against international standards
for health, safety, environment, equipment condition
and process performance.
Process Auditing
To identify and eliminate recurrent causes of scrap
and aborted casts.
Troubleshooting
To improve practices and procedures.
Technical Support
To advise on process improvement, cost savings,
product quality and productivity enhancement to
international standards.
Benchmarking of Customer Metal
Quality
Liquid Metal Sampling for Melt Quality
Assessment
Non-metallic inclusion quantification and
identification using Prefil for trouble shooting or
process improvement verification.
Liquid Metal Sampling for Hydrogen
Content
Hydrogen determination using Alscan.
Plant Trial Evaluations
Carefully controlled trial investigations to support a
process improvement initiative.
Focused Research
Research on a production scale in partnership with
the customer.
Calibration and Certification
Technical Services
Pyrotek’s in-house laboratory can perform
complete tests and calibration with all necessary
documentation. We can provide certification to
verify the finished sensor is built to allow initial
calibration tolerance as established by ASTM
Standard E-230. This standard is based on the
thermodynamic temperature scale of ITS 90.