How Did Ceramic Valves Come Into Being?

Industry Background for the Emergence of Ceramic Valves

Wet‑calcium flue‑gas desulfurization is a mature flue‑gas treatment technology. It effectively removes sulfur dioxide and soot particles from flue gas and serves as a key process for controlling atmospheric sulfur dioxide and inhalable particulate matters.

Basic principle of wet‑calcium flue‑gas purification: Lime or limestone slurry makes full contact with flue gas. Sulfur dioxide in flue gas is absorbed by liquid phase and chemically reacts with lime and limestone in slurry to form calcium sulfite. Meanwhile, solid dust in flue gas is captured by liquid phase. Nevertheless, this process creates harsh working conditions. Desulfurization equipment commonly suffers severe corrosion, scaling, abrasion and clogging. Conventional metal valves can hardly maintain long‑term stable operation. It is against this industry pain point that super wear‑resistant ceramic valves came into existence.

Major Application Scenarios of Ceramic Valves

Ceramic valves are widely adopted in power‑plant flue‑gas desulfurization systems, slag‑removal systems and combustion systems, as well as brine systems and distillation systems of alkali plants, and pulp‑control systems in paper mills. Especially in power‑station FGD desulfurization projects, ceramic valves solve two major technical challenges: high‑chloride‑ion corrosion and abrasion caused by high solid‑content media.

For flow‑control pipelines handling limestone slurry, gypsum slurry and wastewater, ceramic control valves are excellent options and high‑quality substitutes for imported valves with great promotion and application value.