Ceramic Knife Gate Valves for Abrasive & Corrosive Applications

The KV Controls Ceramic Knife Gate Valve is specifically engineered for severe-service industrial applications involving abrasive slurry, corrosive media, ash handling and high solids-content process systems. Designed with advanced structural ceramic sealing surfaces and wear-resistant internal components, the valve provides exceptional abrasion resistance, corrosion protection and reliable shut-off performance in harsh operating environments.

Its full-port non-blocking design reduces flow restriction and minimizes media accumulation, making the Ceramic Knife Gate Valve ideal for coal slurry, slag water, sewage, pulp, sludge and difficult process media commonly found in mining, thermal power plants and chemical processing systems.

Available in manual, pneumatic and automated configurations, the KV Controls Ceramic Knife Gate Valve is designed to reduce maintenance costs, improve operational reliability and extend service life in severe industrial applications.

What Is a Ceramic Knife Gate Valve?

A ceramic knife gate valve is a severe-service isolation valve designed with structural ceramic sealing components to improve wear resistance, corrosion resistance and operational reliability in abrasive and corrosive process applications. Unlike conventional metal-seated valves, ceramic knife gate valves use high-performance ceramic materials for critical wear surfaces exposed to aggressive process media.

The ceramic sealing surfaces provide superior resistance against abrasion, corrosion and high-temperature process conditions, significantly improving valve life expectancy in difficult operating environments.

Advanced Structural Ceramic Technology

The valve uses high-strength structural ceramic sealing surfaces engineered for extreme abrasion and corrosion resistance.

Full-Port Non-Blocking Design

The full-port flow path reduces pressure losses and minimizes the risk of blockage in solids-containing process systems.

Reliable Severe-Service Isolation

The Ceramic Knife Gate Valve delivers dependable shut-off performance in high-wear industrial applications involving slurry, ash and corrosive media.

Ceramic Knife Gate Valves for Mining, Ash Handling & Corrosive Media Applications

The Ceramic Knife Gate Valve is specifically designed for industrial systems where conventional metal valves experience excessive wear, corrosion or premature failure.

Mining & Mineral Processing Applications

Mining operations handling abrasive mineral slurry and solids-containing process media benefit from the valve’s exceptional wear resistance and long operational service life.

Ash Handling Systems

The valve is widely used in thermal power plant ash handling systems involving abrasive ash slurry and coal residue discharge applications.

Coal Slurry Applications

The ceramic sealing surfaces provide reliable protection against severe wear conditions commonly found in coal slurry transport systems.

Corrosive Chemical Processing

Excellent corrosion resistance makes the valve suitable for aggressive chemical process applications involving corrosive fluids and abrasive media.

Sewage & Sludge Systems

The valve can also be used in sewage, sludge and wastewater treatment applications involving difficult solids handling conditions.

Pulp & Paper Applications

The non-blocking flow design improves performance in pulp stock and fiber-containing process systems.

Ceramic Knife Gate Valve Features & Benefits

The Ceramic Knife Gate Valve incorporates several advanced severe-service design features intended to improve valve reliability and reduce maintenance requirements.

Structural Ceramic Sealing Surfaces

High-performance ceramic sealing surfaces provide exceptional resistance against abrasion and corrosive media.

Superior Abrasion Resistance

The valve is specifically engineered for high-wear applications involving abrasive slurry and solids handling systems.

Excellent Corrosion Resistance

Ceramic materials offer strong protection against aggressive chemicals and corrosive process fluids.

Full-Port Flow Design

The unrestricted flow path minimises pressure losses and reduces media build-up inside the valve body.

Non-Blocking Valve Design

The valve outlet design helps prevent clogging and improves operational reliability in solids-containing applications.

High Temperature Resistance

The Ceramic Knife Gate Valve is suitable for elevated temperature process applications up to 250°C depending on operating conditions.

Long Service Life

Advanced ceramic materials significantly improve operational life compared to conventional metal-seated valves.

Reduced Maintenance Requirements

Improved wear resistance and sealing performance reduce maintenance frequency and downtime.

Pneumatic & Automated Operation

Available in pneumatic, electric and manual actuation configurations for industrial process control applications.

Technical Specifications

The Ceramic Knife Gate Valve is available in multiple sizes, pressure classes and material configurations to suit severe-service process applications.

Available Sizes

DN50 to DN600

Pressure Ratings

• PN10
• PN16
• PN25

Applicable Temperature

Up to 250°C

Actuator Pressure

0.6 – 0.8 MPa

Connection Types

• Wafer style
• Flanged configurations

Seat Materials

• Structural ceramic
• Ceramic sealing components

Applicable Media

Suitable for:

• Coal slurry
• Ash slurry
• Slag water
• Sewage
• Sludge
• Pulp stock
• Corrosive media
• Abrasive solids

Available Actuation Options

• Manual handwheel
• Pneumatic actuator
• Electric actuator
• Automated control systems

Why Choose the KV Controls Ceramic Knife Gate Valve?

KV Controls supplies severe-service ceramic valve solutions designed for demanding industrial applications across South Africa and Africa.

Designed for Extreme Wear Conditions

The Ceramic Knife Gate Valve is engineered for applications where conventional metal valves experience rapid wear or corrosion failure.

Reduced Downtime & Maintenance

Advanced ceramic sealing technology significantly improves service life and reduces maintenance requirements.

Reliable Abrasion & Corrosion Protection

Structural ceramic materials provide outstanding protection against abrasive slurry and corrosive process media.

Ideal for Mining & Power Generation

The valve is particularly well suited for mining slurry, ash handling and thermal power plant applications.

South African Technical Support

KV Controls provides local technical support, application expertise and industrial valve solutions tailored for African operating conditions.

Frequently Asked Questions

What is a ceramic knife gate valve used for?

Ceramic knife gate valves are used for abrasive slurry, ash handling, corrosive media and severe-service industrial process applications.

What are the advantages of ceramic valve technology?

Ceramic valve components provide superior abrasion resistance, corrosion protection, high-temperature resistance and longer operational life.

Is the Ceramic Knife Gate Valve suitable for mining slurry?

Yes. The valve is specifically designed for abrasive mining slurry and high solids-content process systems.

Can ceramic knife gate valves handle corrosive media?

Yes. Structural ceramic materials provide excellent resistance against corrosive chemicals and aggressive process fluids.

What industries use ceramic knife gate valves?

These valves are widely used in mining, thermal power plants, chemical processing, wastewater treatment and pulp & paper industries.

What temperature can the valve handle?

The Ceramic Knife Gate Valve can operate at temperatures up to 250°C depending on process conditions.

Can the Ceramic Knife Gate Valve be automated?

Yes. The valve is available with pneumatic, electric and automated actuation systems.