- Temperature Instruments[6]
- Water Meters[3]
- Cap Making Machinery Parts[5]
- Measuring & Analysing Instrument Stocks[1]
- Pressure Gauges[1]
- Multimeters[1]
- Pressure Transmitters[6]
- Other Measuring & Analysing Instruments[5]
- Instrument Parts & Accessories[5]
- Electrical Wires[1]
- Other Metals & Metal Products[1]
- Ceramics[6]
- Other Ceramic Fiber Products[3]
- Connectors[2]
- Flanges[1]
- Contact Person : Ms. HU Emily
- Company Name : Chongqing Duchina Temperature Instrument Co., Ltd.
- Tel : 86-23-68215733
- Fax : 86-23-68219865
- Address : Chongqing,Beibei,290 Fengshixing Road
- Country/Region : China
- Zip : 400711
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1. Product details
Alumina Protection ceramic Tubes
Maximum temperature range 3200F
Fair shock resistance, preheating recommended
Resists chemicals, will not contaminate platinum
Impervious to gasses at high temperature
Design
Unglazed. Admissible tolerance of the wall thickness is in compliance with DIN 40680 Part 1,
degree of accuracy: Fine, with the following specifications: A straight rod, diameter 0.8
x (d1-2s), must be able to be inserted to the bottom of the sheath tube. The rounded bottom of the
sheath tube uniformly becomes the cylindrical section of the sheath tube.
Thermal shock resistance:
The sheath tube is inserted with the closed end into a 40 mm internal diameter tube furnace at constant
rate.The furnace is heated to the maximum permissible continuous temperature of the sheath tube.
The sheath tube must not come in contact with the tube furnace, therefore a vertical setup of the tube
furnaceis recommended. After a minimum of 20 minutes holding time, the sheath tube is removed at
the same rate and is hung freely in order to cool in calm air.
Dimensional stability
The sheath tube is horizontally clamped into the tube furnace used for thermal shock resistance testing
and is then heated to themaximum permissible continuous temperature. This procedure lasts for 30
minutes.
Gas tightness
The sheath tube is exposed to an inner overpressure of 2 bar, and then submersed in water for one
minute. Note, The tests should be conducted in the above mentioned order. The thermal shock resistance tests and
dimensional stability tests can be conducted simultaneously .