Manual Lug-Type Ceramic Knife Gate Valve

Designed for the world’s harshest slurry and ash handling systems, our Manual Lug-Type Ceramic Knife Gate Valve combines the structural integrity of a lug-style body with the extreme hardness of engineered ceramics. This valve is the ideal solution for pipelines transporting large solid particles, viscous colloids, and floating debris where traditional metal valves fail prematurely.

Engineering Excellence for Abrasive Environments

1. Structural Ceramic Armor (HRA 88+)

The heart of this valve lies in its structural ceramic sealing faces and flow liners. These components offer exceptional resistance to corrosion and wear, maintaining their shape and sealing integrity even under high-temperature conditions.

2. Self-Cleaning & Scraping Mechanism

The rising ceramic gate does more than just stop flow; it acts as a mechanical scraper. As the valve operates, the sharp ceramic edge shears through solid accumulations and sticky media, automatically clearing the sealing surface of debris and preventing material “bridging.”

3. High-Performance Lug-Body Design

Simplified Installation: The lugged body features threaded inserts, ensuring perfect alignment with pipe flanges and reducing installation time.
Dead-End Service: Unlike wafer-style valves, the lug design allows for downstream pipe removal while the valve remains securely bolted to the upstream flange under pressure.
Compact & Lightweight: The ultra-short face-to-face dimension reduces the overall weight of the piping system, making it easier to transport and install in tight spaces.

Key Performance Features

Unrivaled Durability: Ceramic-to-ceramic sealing provides superior resistance to thermal shock, high-temperature creep, and erosive wear.
Low Flow Resistance: The full-bore design ensures that the medium flows as if through a straight pipe, minimizing pressure drops and energy consumption.
Modular Drive Options: While this model is equipped with a high-torque manual handwheel, the mounting pad is standardized to accept Gearboxes, Electric Actuators, or Pneumatic Cylinders should your automation needs change.
Customizable Protection: We offer various grades of wear-resistant ceramic liners tailored to your specific media, whether it be coal slurry, mineral tailings, or cement discharge.

Technical Specifications

Feature	Specification Details
Body Type	Lugged (Threaded Bolt Holes)
Sealing Pair	Structural Ceramic to Structural Ceramic
Bore Design	Full Bore, Unobstructed Path
Nominal Pressure	PN6, PN10, PN16, ANSI Class 150
Applicable Media	Slurry, Ash, Coal Slag, Tailings, Sewage, Cement
Working Temperature	Standard: ≤200°C (Extended ranges available up to 900°C)
Connection Standards	GB, ANSI, DIN, JIS

Typical Application Sectors

Coal Washing & Mining: Handling coal slurry, mineral tailings, and abrasive grit.
Power Generation: Critical for “Stone Coal” transport systems and fly ash handling.
Petrochemical & Environmental: Processing viscous waste, sludge, and industrial sewage.
Construction & Cement: Transporting dry bulk powders and abrasive slurries.

Why Choose the Ceramic Lug-Type Valve?

Standard metal knife gate valves often suffer from “clogging” or “erosion grooves” when handling solids. By switching to our Ceramic Lug-Style Valve, facilities typically see a 300% to 500% increase in maintenance intervals, drastically reducing downtime and replacement costs in high-wear systems.