In coal chemical plant, coal slurry need to switch and continuous control, in the metallurgical industry, pneumatic conveying ore powder need continuous control, there are many similar occasions, liquid and gas medium containing a large number of hard granular media, these media need to flow control and flow control, for similar applications should be how to choose control valve:

1, switch control can choose the ceramic ball valve or anti particle design of metal hard seal ball valve, valve special hardening treatment.

2, adjust the control can choose a hard sealing V - shaped ball valve or cam valve, valve special hardening treatment, in particular, to pay attention to the axial particle design, to prevent the shaft of the card.

If the medium contains particles, and need to continue operation, even if the fluid is corrosive chemical medium, so if you use metal valve (whether it is stainless steel or hard alloy) will be due to wear and leakage, affecting the life and production, more important is because the particles and metal in the process of wear easy to produce metal affinity, so that the pipe plug, these problems are real, to solve the problem, we should use industrial ceramic valve.

Although the valve itself is more than the price of metal valves, but the comparison of "price", we will find that the use of ceramic valve is once and for all. Facts have proved that the power plant desulfurization (Media: limestone slurry), the more harsh chemical process environment, ceramic ball valve is increasingly favored by people