Oxidation of tungsten rhenium thermocouples 
 Product Code: 002010091504 
 Model: WRe3-WRe25 WRe5-WRe26 
 Product Note: Thermocouple order by agreement 
 Category: → W-Re thermocouple thermocouple 

 WR □ W tungsten-rhenium thermocouples series of oxidation 
 The use of entity-based architecture to solve the high-temperature oxidation of tungsten rhenium thermocouple problem. It features high temperature resistance, anti-oxidation. In oxidation, reduction, or alternating between the two atmospheres, and the price is cheap, platinum and rhodium is only 1 / 2 to 1 / 4. Thus, in 1996 as a national new product certification, and obtained national patent. 
 The products are mainly used in metallurgy, chemical, refractory furnace and coal gasification or sulfur recovery unit of temperature measurement, in Yingkou, Panzhihua Iron and Steel, Xiangtan powder smelting companies for many years. 
 □ Main Technical Specifications 
 Model No. ASTM indexing 
 Dividing Range No. tolerance values 
 (℃) applicable to the atmosphere 
 WR □ W-134 □ WRe3-WRe25 
 (W3) D ± 1.0% t 0 ~ 1700 oxidation, reduction 
 Or 
 Alternating between the two 
 WR □ W-13525 WRe5-WRe26 
 (W5) C 
 WR □ W-13530 
 □ specifications 
 Model protection tube 
 Structure diameter (mm) Material 
 WR W3 W-134 □ 8 to 16 corundum single tube 
 W5 
 WR W3 W-13525 double 
 Composite pipe 
 Materialized 
 Structure 16 (in) × 25 (outside) corundum 
 W5 
 WR W3 W-13525 12 (in) × 25 (outside) corundum (internal) 
 + SiC (outside) 
 W5 
 WR W3 W-13530 16 (in) × 30 (outside) corundum (internal) 
 + SiC (outside) 
 W5 
 WR W3 W-13530 16 (in) × 30 (outside) corundum (internal) + 
 Cermet (outside) 
 W5 
 ● Protection tube diameter and length specifications sheet (mm) 
 Φ16 (single tube) Φ20 
 Length L is set deep set dark l l length L 
 300 150 400 250 
 350 200 450 300 
 400 250 550 400 
 450 300 650 500 
 550 400 900 750 
 65,050,011,501,000 
 90,075,016,501,500 
 1,150,100,021,502,000 
 Note: l metal-ceramic tube up to 500.