Sealed ceramic ball valve

Sealed ceramic ball valve

Ceramic materials have very little deformation and much higher bonding strength than metals. In general, the crystal ion radius that makes up ceramic materials is small, and the ion valence and coordination number are high. These properties determine that the tensile strength, compressive strength, elastic modulus, hardness, and other properties of ceramic materials are very high. However, the brittleness and difficulty in processing of ceramics themselves limit their application scope. In the past decade, due to the development and progress of martensitic transformation toughening technology, composite material science technology, and the concept of nano ceramics, the brittleness of ceramics has been greatly improved, and their toughness and strength have been greatly enhanced, expanding their application scope. The application of new ceramic materials in petroleum, chemical, mechanical and other fields is very active. Utilizing the wear resistance and corrosion resistance of ceramics to produce wear-resistant and corrosion-resistant parts instead of metal materials is one of the important development directions in the high-tech materials market in recent years.

Technical Specifications

1. Form: Floating;

2. Nominal pressure: 0.6MPa-10.0MPa;

3. Nominal meridian: DN20-DN300;

4. Applicable temperature: -40 ℃+425 ℃;

5. Connection form: flange connection;

6. Drive mode: manual;

Sealed ceramic ball valve

structural characteristics

1. The thickness of the valve shell exceeds the standard data requirements of national standards GB, JB, and American standard ANSI, and the chemical elements and mechanical properties of the main material meet the national standard requirements. The three-stage structure design of the shell is sturdy and aesthetically pleasing.

2. The chemical elements of the valve stem material meet the national standard requirements, with precision grinding and surface treatment of corrosion-resistant nitriding or quenching, ensuring that the valve stem has good mechanical properties and corrosion resistance.

3. Built in buffer compensation elastic gasket ensures stable and good sealing performance. And in the presence of impurities, it is not easy to get stuck and cause the ball to break.

4. The fully lined hard sealing surface contact ceramic ball valve is made of structural ceramic material, which has the characteristics of chemical stability and hardness of * (hardness HRA88 or above, second only to diamond) when in contact with the medium. Therefore, ceramics have high compressive strength, high wear resistance, excellent oxidation and corrosion resistance, high temperature resistance, and good thermal insulation performance.

5. It is manufactured with precise grinding technology (imported from Taiwan, China, China) and advanced mechanical equipment. The valve structure is simple, the flow channel is smooth, and the medium flow resistance is small. The hard sealed ceramic internal components consist of six scientifically designed parts. The valve ball and valve seat surfaces are processed in contact, ensuring a tight fit between the ball and the inner and outer R of the seat. The ball has high precision, good surface quality, light torque, low resistance, and zero leakage of the entire valve.

6. Application areas: thermal power plants, steel, petroleum, chemical, papermaking, biotechnology, and other industries. Suitable for conveying boiler steam, lime slurry, seawater containing particles, high hardness particles, corrosive media containing soft particles, powders, flue gas desulfurization, ash discharge, slag discharge, and water treatment. Replace materials according to their intended use, which can be used in different temperatures and media.

Why choose ceramic ball valve

Ceramic valves use structural ceramic materials with excellent performance, giving them the advantages of ordinary metal or plastic material valves. Shengzhong Ceramic Valve is made of 99.5% high-purity alumina ceramic, ensuring excellent performance of the valve under various working conditions.

1. Corrosion resistant 99.5% alumina structural ceramics have strong chemical inertness, do not react with most organic and inorganic substances, and do not pollute the medium. For most acids and bases, the physical and chemical properties of alumina structural ceramics are stable, and their performance will not degrade even after years of service.

2. The wear resistance of 99.5% alumina ceramic is 43% higher than that of zirconia, 140% higher than that of daily-use ceramics, and 730% higher than that of stainless steel, reaching HRA88, only slightly lower than diamond, silicon nitride, and silicon carbide. This characteristic also determines that ceramic valves have excellent wear resistance performance.

3. Multiple valve cores to choose from

Each specification of ball valve has two types of valve cores: V-shaped regulating and O-shaped. It can adjust the flow rate with high precision. At the same time, the use of reinforced valve cores also reduces the wear of valve flow channels.