High Hardness Zirconia Ceramic Ball Valve for Different Industrial Processes

High Hardness Zirconia Ceramic Ball Valve for Different Industrial Processes

Product Description

Ceramic Ball Valve, with their superior wear resistance, corrosion resistance, high cleanliness, and excellent impact resistance, have become the preferred solution for high-wear, highly corrosive, and high-cleanliness fluid control scenarios such as coal chemical, petrochemical, power plant desulfurization, and new energy lithium battery industries. Compared to traditional metal ball valves, their wear life is increased by more than 10 times, they produce no metal ion contamination, and they are suitable for harsh operating conditions containing particulate matter, acids, and alkalis. Although the initial cost is higher, the total life-cycle maintenance cost is significantly reduced, making them a core upgrade product for solving wear and corrosion problems in the field of industrial fluid control.

Product Specifications (General Type)

1. Material: Yttrium-stabilized zirconia (Y-PSZ, 3Y/5Y/8Y), Magnesium oxide-stabilized zirconia (Mg-PSZ);

2. Structure: Hollow/solid ceramic ball, ceramic ball with through hole, custom flow channel ceramic valve core;

3. Dimensions: Nominal diameter DN6-DN200, ball diameter φ10-φ200mm, orifice diameter customized according to customer requirements;

4. Fitting Accuracy: Ball-seat fit clearance ≤0.01mm, surface roughness Ra≤0.2μm;

5. Installation Method: Adaptable to floating/fixed ball valve structures, can be matched with metal valve body or all-ceramic valve body.

Core Material Properties

Core Product Advantages

1. Exceptional Wear Resistance: zirconia ceramics have a hardness approaching that of sapphire and a low coefficient of friction (0.1–0.3). In media containing solid particles, the wear rate is only 1/100–1/1000 that of metal valves, significantly extending service life.

2. Excellent Corrosion Resistance: it exhibits excellent chemical inertness to hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide, and most organic solvents, completely solving the problems of electrochemical corrosion and stress corrosion cracking in metal valves.

3. Zero-Leakage Seal: the ceramic sphere is ultra-precision ground (surface roughness Ra≤0.05 μm), achieving line or surface contact sealing with the ceramic valve seat. The leakage level can reach ANSI/FCI 70-2 Class VI (bubble-level seal).

4. Self-Lubrication and Low Torque: the high surface finish of the ceramic results in low frictional resistance and low opening and closing torque, allowing for the integration of small actuators, reducing energy consumption and automation costs. 5. Biocompatibility and Cleanliness: Zirconia materials are non-toxic, non-magnetic, and do not release metal ions, meeting FDA, USP Class VI, and SEMI semiconductor standards, making them suitable for high-purity media and biopharmaceutical processes.

6. Resistance to Cavitation and Flash Damage: high hardness and excellent impact toughness enable ceramic ball valves to maintain stable performance under high pressure differential, cavitation, and flash conditions, preventing erosion and perforation of metal valves.

Main Technical Parameters

Typical Application Scenarios

Selection Guide

1. Media Characteristics Analysis: confirm the corrosiveness, abrasiveness, temperature, pressure, and solid particle content of the medium.
2. Sealing Class Requirements:select a soft seal (Class VI) or a hard seal (Class V) based on the allowable leakage rate.
3. Flow Rate and Differential Pressure:calculate the Cv value and confirm that the valve diameter and pressure drop are within the allowable range.
4. Actuation Method Selection:for frequent operation applications, pneumatic or electric actuators are recommended.
5. Installation Space and Connections:confirm the piping standard, flange type, and actuator installation orientation.

Installation and Maintenance Recommendations

1.Installation Direction: it is recommended that the medium flow direction be consistent with the valve markings to avoid reverse high-pressure impact on the ceramic sealing surface.

2.Pre-flushing: new pipelines should be thoroughly flushed before commissioning to prevent hard particles such as welding slag and iron filings from damaging the ceramic surface.

3.Opening and Closing Operation: avoid using a lever to force operation to prevent overload and breakage of ceramic components.

4.Regular Inspection: it is recommended to check the wear of the sealing surface every 6–12 months. The normal service life of the ceramic ball is 5–10 years.

5.Spare Parts Strategy: it is recommended to stock ceramic valve seats and sealing rings as vulnerable parts to ensure rapid restoration of operation.

Our workshop

Why choose us?

1.Customized R&D, rather than standard product adaptation

2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency

3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.

FAQ

Q1: What products does your company offer?

We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.

Q2: Can you customize non-standard parts?

Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.

Q3: What about accuracy and delivery time?

Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.

Q4: Main application areas?

Power, electronics, machinery, chemical, and aerospace industries.

Q5: Quality assurance measures?

Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.

Q6: Do you provide technical support?

We provide professional support such as material selection consultation, design optimization, and failure analysis.