Basic Information
Structure
Double-Eccentric Sealing
Work Pressure
Low Pressure (Pn<1.6mpa)
Material of Seal Surface
Ceramic
General Overview
FRD672TC Pneumatic Wafer Type Ceramic Lined Butterfly Valves are designed for the harshest control environments, offering excellent resistance to cavitation—a major challenge for process control valves. High-performance ceramic materials are applied to the most critical areas of the disc. These materials are 6-8 times harder than stainless steel, ensuring reliable operation in abrasive service environments.
Key Features
Wafer type design: Light weight and easy to install.
High-performance ceramics: Disc sealing ring and seat utilize 99% Alumina, Zirconia, or Tungsten carbide.
Chemical Resistance: Ceramics are nearly universally resistant to chemical corrosion.
Extended Service Life: Significantly outlasts common butterfly valves in abrasive conditions.
Control Versatility: Easy to implement remote or local pneumatic control.
Fail-safe Options: Single acting cylinders allow for automatic turn-off/on during air break conditions.
Technical Specifications
| Size Range | NPS4~NPS12, DN50~DN300 |
| Nominal Pressure | Class 150 / PN10 / PN16 |
| Service Temperature | 0~200ºC |
| Connection Type | Flange, Wafer |
| Disc Material | Carbon steel+ceramic / Stainless steel+ceramic |
| Body Material | WCB, CF8, CF8M, CF3, CF3M |
| Operating Type | Pneumatic / Manual |
Typical Applications
These valves are ideal for abrasive slurries including:
Bauxite & Mining Slag
Coal Washing & Ash Slurry
Grain & Quartz Sand
Metallurgical Dust
Frequently Asked Questions
Q: Why choose ceramic lining over stainless steel?
A: Ceramic materials used in these valves are 6-8 times harder than stainless steel, providing superior resistance to abrasion and cavitation in harsh environments.
Q: What media are these valves suitable for?
A: They are specifically designed for abrasive slurries such as ash slurry, mining slag, quartz sand, and metallurgical dust.
Q: Can these valves be operated manually?
A: Yes, the technical specifications support both pneumatic and manual operating types depending on your site requirements.
Q: What standards do these valves comply with?
A: Our valves meet international standards including GB/T13927 and API598 for pressure testing, and ASME B16.10 for face-to-face dimensions.
Q: What happens if the air supply fails?
A: By using a single-acting pneumatic cylinder, the valve can be configured to automatically open or close during an air break to ensure process safety.
Q: Is the color of the valve customizable?
A: Yes, the valve body colors can be customized according to specific client requirements or site standards.
Xingli Industrial Ceramics
