Product Overview
The Z644Tc ceramic double-disc gate valve features a dual-disc design and utilizes a high-grade, toughened structural ceramic manufactured with nanotechnology for its sealing elements. Its practical performance significantly surpasses that of conventional structural ceramics and wear-resistant materials such as cemented carbides, effectively addressing the issue of sealing surfaces being easily eroded by material abrasion and having a short service life. Its service life is considerably longer than that of ordinary materials.
The valve length is 5 to 10 times, or even longer, providing users with ideal operational performance and economic benefits. It also facilitates equipment inspection and operational adjustments, thereby significantly enhancing the overall safety and economic efficiency of the system.

Valve Model Coding Instructions

Scope of Use
Suitable for inlet and outlet valves in dry ash systems at power plants, as well as for use in mines, steel mills, paper mills, petrochemical plants, and other industries handling abrasive, corrosive media, powders, flue gases, and similar substances in pipelines.

Installation and Usage Tips
1. Before installation, carefully read this instruction manual and verify the valve model, nominal diameter, and technical specifications.
2. Welding onto flanges immediately after installing valves is strictly prohibited to avoid damaging the valve’s sealing ring. The installation distance for valves pre-reserved in the pipeline should be appropriate, and gaskets must be added on both sides of the flange.
3. The centers of the two pipelines and the center of the valve’s bore should be coaxial, and the flange surfaces must be flat. Significant deviations in the flange surfaces are not permitted to ensure proper clamping and normal operation of the valve. When tightening the bolts, ensure symmetry.

Product Features
1. The material inlet features full-flow passage with no obstructions, and is equipped with an automatic compressed-air blow-cleaning device, resulting in fewer instances of ash blockages and ash accumulation.
2. Employs a high-end, toughened structural ceramic seal with high mechanical strength.
3. Excellent wear resistance and long service life.
4. Can be installed at any position and angle.
5. Compact structure and easy installation.
6. The sealing pair is replaceable, which helps save costs.

Main Technical Parameters
Nominal pressure: 1.0 MPa
Medium temperature: ≤200℃
Strength test: 1.5 MPa
Sealing test: 1.1 MPa

Installation dimensions and outline drawing