PQ340TC Ceramic Eccentric Hemisphere Valve/Pneumatic Stainless Steel Ceramic Hemisphere Valve

Nominal pressure: 1.6MPA

Nominal diameter: DN50-DN1000

Suitable for industrial and mining: solution and slurry transportation, alumina powder, coal powder, coal ash, dusty gases, waste residue, etc

Applicable temperature: t=-40 ℃~350 ℃

Note: The pressure for the airtight seal test is 0.6Mpa

Product Overview:

The PQ340TC ceramic eccentric hemispherical valve utilizes an eccentric valve body, eccentric sphere, and valve seat. When the valve stem rotates, it automatically centers on a common trajectory, and during the closing process, it becomes tighter and tighter, achieving a good sealing effect. The ball and seat of the valve are completely detached, eliminating the wear of the sealing ring and overcoming the problem of continuous wear between the traditional ball seat and ball sealing surface. Non metallic elastic materials are embedded in the metal seat, and the metal surface of the valve seat is well protected. Especially suitable for industries such as steel, ore washing and beneficiation, power plants, and ash removal, as well as media such as mineral slurry and ash slurry.

The valve seat and hemispherical sealing surface of the valve are made of engineering ceramics, which have high hardness, erosion resistance, and long service life. Suitable for solid-liquid mixed media containing powdered particles, used for opening and closing; The hemisphere is a fixed sphere with good rigidity. The shape is a V-shaped hemisphere, with a small volume and light weight; The distance between the valve seat sealing surface and the hemispherical sealing surface is adjustable, so after a certain period of use, the distance between the sealing surfaces of the valve can be further adjusted to extend its service life; When the valve is fully open, the valve body passage is completely unobstructed and the medium flow resistance is small.

Main features:

1. Straight through: Unidirectional sealing and eccentric structure, when opened, the ball is detached from the valve body, and the flow channel is straight through without any jamming or blockage.

2. Lightweight switch: When opening and closing, the spherical surface is detached from the sealing seat, with no contact, low torque, and flexible rotation. The shear effect between the hemispherical valve and the valve seat during opening and closing, due to the self-cleaning and self-lubricating properties of ceramics, can cut off the scale and adhesion on the sealing surface, and maintain a tight seal.

3. The eccentric structure of the sealing surface enables the spherical surface to automatically compensate for wear, maintain the sealing performance of the valve, have a long service life, and are safe and reliable.

4. The valve belongs to a hard sealed structure, and the sealing pair is made of wear-resistant ceramic, which has hard wear resistance and corrosion resistance.

Main component materials:

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