Ceramic butterfly valve

Ceramic butterfly valve is an industrial valve that uses structural ceramics as the sealing pair. It has characteristics such as corrosion resistance, high temperature resistance, and wear resistance, and is widely used in industries such as petrochemicals, metallurgy, and power. The following is a summary of its core information:

1、 Product Overview
Ceramic butterfly valve, also known as ceramic flap valve, adjusts or cuts off the medium by rotating the valve plate. Its sealing pair is made of ceramic materials such as alumina and silicon carbide, with a hardness of HRC85 or higher and a wear resistance 5-10 times that of metal valves. It can replace precious metal valves for high wear and strong corrosion conditions. The driving methods include manual, pneumatic, electric, etc.
2、 Core advantages
Wear resistant and corrosion-resistant: Ceramic materials have strong chemical stability, can withstand acidic and alkaline media with pH 1-14, and even resist extreme corrosion such as aqua regia and hydrofluoric acid.
Sealing performance: The hard seal design (ceramic to ceramic) has a leakage rate as low as GB/T 13927 Level VI (zero leakage), suitable for granular media such as slurry and ash.
Long lifespan: In the desulfurization system of power plants, ceramic butterfly valves can operate continuously for 3 years without replacement, while metal valves require an average of 2 replacements per year.
3、 Technical parameters
Nominal diameter: DN50~DN500 (common specifications are DN50~DN300).
Nominal pressure: PN1.0~PN40 (some high-pressure models reach PN64).
Applicable temperature: -20 ℃~600 ℃ (special design can reach up to 1000 ℃).
4、 Structural classification
According to the connection method:
Clamp on type (such as D371TC): suitable for space constrained scenarios.
Flange type (such as D343TC): suitable for high pressure or high vibration environments.
By driving mode:
Manual turbine type: with small operating torque, suitable for manual control of small and medium-sized diameters.
Pneumatic/Electric: Supports remote control and fast response speed.
5、 Application scenarios
Power industry: ash conveying and desulfurization system for thermal power plants.
Chemical/Mining: Slurry, Corrosive Slurry Pipeline.
Environmental engineering: sewage treatment, dust control.
6、 Mainstream models and prices
Model examples: D371TC (clamp type), D343TC (flange type), D973TC (electric).