Our standard type silicon carbide (SiC) shell and tube heat exchanger is made of corrosion resistant tube plates and SiC tubes. Due to the utilization of silicon carbide tubes, this SiC heat exchanger is a perfect solution adapted to heating, cooling, and condensation of highly corrosive chemicals.
We can use double-tube plates design to separate process fluid from working fluid so that the two fluids will not be mingled even the O-ring breaks.
Comparison Chart of Thermal ConductivitySilicon carbide corrosion performance | |||
Testing EnvironmentConc. Reagent | Corrosive Weight Loss | (mg/cm2yr) | |
(Wt%) | Temperature (C) | Pressureless-sintered Silicon Carbide**No Free SiC)** | Reaction-bonded Silicon Carbide12% SiC) |
98% H2SO4 | 100 | 1.8 | 55 |
50% NaOH | 100 | 2.6 | >1000 |
53% HF | 25 | 7.9 | |
85% H3PO4 | 100 | 8.8 | |
70% HNO3 | 100 | 0.5 | |
45% KOH | 100 | >1000 | |
25% HCI | 70 | 0.9 | |
10% HF plus 57% HNO3 | 25 | >1000 | |
Qianqiao produces every SiC heat exchanger with pressureless-sintered silicon carbide** |