Delivery time: 1-2 working days.
We ship to the following countries:
United Kingdom, Austria, Belgium, Bosnia and Herzegovina, Brazil, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, India, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, United States
Shipping rates:
• £15 for orders from UK Mainland.
• £25 for orders from UK – Highlands & Islands.
• £35 for orders from Belgium, Ireland, Luxembourg and Netherlands.
• £37 for orders from France and Germany.
• £42 for orders from Switzerland.
• £43 for orders from Austria, Denmark, Italy, Portugal and Spain.
• £45 for orders from Czech Republic, Slovakia, Slovenia and Bulgaria.
• £49 for orders from Iceland.
• £51 for orders from Finland, Sweden and Greece.
• £53 for orders from Croatia, Estonia, Hungary, Poland, Latvia, Lithuania and Romania.
• £61 for orders from United States and Canada.
• £63 for orders from Liechtenstein.
• £72 for orders from Bosnia and Herzegovina, Norway and Serbia.
• £90 for orders from India.
• £103 for orders from Brazil.
Don’t see your country listed?
We ship worldwide. Contact us for a shipping quote and delivery timeframe.
• +44 (0) 1246 261 999
• websales@peaksensors.com
Q: What is a 20mm OD x 15mm ID Aluminous Porcelain Tube with open ends used for?
A: This ceramic tube is designed to provide mechanical protection and electrical insulation for thermocouple wires and sensor assemblies operating in high-temperature environments. The open-both-ends design allows thermocouple conductors to pass through the entire length of the tube, making it suitable for furnaces, kilns, ovens, and custom temperature sensing applications.
Q: What is the benefit of an open-both-ends ceramic tube?
A: An open-ended ceramic tube allows thermocouple wires to be routed through the full length of the tube while remaining protected from mechanical damage and electrical contact. This design is commonly used where the thermocouple junction is exposed or housed in a separate protection assembly.
Q: Which thermocouple types are commonly used with this ceramic tube?
A: This aluminous porcelain tube is mainly used with base metal thermocouples such as Type J, Type K, and Type N. These thermocouples are widely used in industrial temperature measurement applications that require protection from high-temperature environments.
Q: What maximum temperature can this aluminous porcelain tube withstand?
A: The tube is suitable for temperatures up to 1400°C. This makes it appropriate for demanding thermal processes including heat treatment, metal processing, ceramics manufacturing, furnace operation, and laboratory testing.
Q: Why would I choose a 20mm ceramic tube instead of a smaller diameter option?
A: A 20mm outer diameter provides increased mechanical strength and durability for heavy-duty industrial applications. The larger 15mm internal diameter also allows installation of larger thermocouple assemblies, multiple sensing elements, or additional insulation materials where required.
Q: Is this tube suitable for industrial furnace and kiln applications?
A: Yes. The high-temperature capability, thermal shock resistance, and excellent insulating properties make this tube suitable for use in industrial furnaces, kilns, heat treatment plants, and other high-temperature process equipment.
Q: Can this ceramic tube withstand repeated heating and cooling cycles?
A: Yes. Aluminous porcelain offers good thermal shock resistance, helping the tube withstand repeated temperature changes that occur in many industrial thermal processes. This helps improve service life and reliability in demanding environments.
Q: When should I choose an open-ended ceramic tube instead of a closed-end tube?
A: Choose an open-ended tube when you need to insulate and protect thermocouple wires along their length rather than shield the measuring junction itself. Closed-end tubes are generally selected when the thermocouple tip requires protection from direct exposure to the process environment.
Q: Which industries commonly use large open-ended ceramic thermocouple tubes?
A: These tubes are widely used in heat treatment, power generation, steel production, glass manufacturing, ceramics processing, research laboratories, and industrial furnace applications where reliable thermocouple insulation and protection are required.
Q: What are the advantages of using aluminous porcelain for thermocouple protection?
A: Aluminous porcelain provides excellent high-temperature resistance, electrical insulation, thermal stability, and thermal shock resistance. These properties make it a widely used material for protecting thermocouples and temperature sensor assemblies in harsh industrial environments.
