High-temperature tungsten-rhenium thermocouples 
 Product Code: 002010091505 
 Model: WRW-1700 
 Product Note: Thermocouple order by agreement 
 Category: → W-Re thermocouple thermocouple 

 High-temperature tungsten-rhenium thermocouples, the ideal temperature range is 0 ~ 1650 ℃, the entity type, the structure of single, double or triple (not used) to protect pipes, special selection pure corundum single casing pipe, tube or molybdenum molybdenum disilicide tube, double tube structure to protect the outer protection tube for the special pure corundum tube, inner tube used to protect special pure alumina, molybdenum or molybdenum disilicide tube tube, three tubes used to protect the outer casing Pure alumina or silicon carbide tube recrystallization the middle and inner tube and double tube to protect the same, filler tube for high temperature insulation material (available at 1800 ℃ the following long-term use), then cold-side vacuum seal (sealants are the following long-term use at 300 ℃), to ensure no residual oxygen tube, the product is suitable for vacuum, inert gas such as reduction in the use of a shorter service life in oxidizing atmosphere. 

 The main technical indicators 
 Product Name Model No. ASTM sub-degree temperature range of sub-degree No. ℃ Tolerance with atmosphere 
 High-temperature tungsten-rhenium thermocouples WRW-1700 type WRe3/25 D 0 ~ 1700 ± 0.5% t vacuum, inert gas reduction and 
 WRe5/26 C 0 ~ 1700 ± 0.5% t 

 Product Specifications 
 Model structure protection tube diameter (mm) Protection tube material 
 Within the internal and external in the outer 
 WRW-1700 type double tube 6-8 alumina, molybdenum and molybdenum disilicide tube tube Pure corundum, molybdenum or molybdenum disilicide tube tube 
 Three-tube 12-166-8 Pure corundum tube above 
 Three-tube 22-3012-166-8 Pure corundum tube or recrystallized silicon carbide tube Pure corundum tube above