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.
Typical Applications Bromine, Sulfuric Acid, Hydrofluoric Acid, Nitric Acid, Hydrochloric Acid, etc.; Alkalis; Halogenated Compounds; Salt Solutions; Organic Compounds; Technical Data Each tube is subjected to test at pressure of 185 Bar before installation; Shell diameter range: DN100 to DN600; Standard length of tube: 1000 to 3000mm; Heat exchange area: 1 to 60m2; Tube diameter: 14mm, 19mm; Horizontal or vertical installation; Temperature range: -19°C to 100°C; Pressure range: -0.1MPa to 0.3MPa; CE, ATEX, FDA compliantWe 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** |