• Product features:

1. Rapid switching: 90° rotation can complete opening and closing;

2. Reliable sealing: The double eccentric structure design is adopted. When the valve core is closed, it is closer to the valve seat sealing surface, and a good sealing effect is achieved completely; due to the effect of eccentricity, the sealing surface can be automatically compensated after wear, and a reliable sealing effect can still be achieved, zero leakage can be achieved, and the self-locking function can be achieved;

3. Small flow resistance: After the valve is opened, the eccentric crankshaft and the ball crown are hidden in the inner cavity of the valve body, which greatly increases the flow area of the medium;

4. Self-cleaning: The inner cavity of the valve body adopts a streamlined design, so that impurities flow to the outlet along the inner cavity of the valve body under the action of pressure; during the closing process, the hemispherical body gradually moves along the valve seat, with a shearing function, which can effectively remove impurities at the sealing surface, and achieve self-cleaning and reliable sealing;

5.Applicable working conditions: The eccentric hemispherical valve is suitable for valves required by various general industries, such as water-coal slurry, sewage, gas, pulp and other media. If the sealing pair (hemispherical body, valve seat) and valve body, the flow channel is treated with a special tungsten carbide process, it has the advantages of high efficiency and energy saving, good wear resistance, reliable sealing performance, rapid opening and closing, and long service life. It is an ideal choice for valves used in pipelines in the industrial silicon industry. Due to its instantaneous separation and instantaneous compression characteristics between the hemisphere and the valve seat, it is suitable for harsh working conditions containing media and can be widely used in various pipeline controls in blast furnace coal powder injection, powder making systems, and dust removal systems in production processes such as metallurgy, mineral processing, and electricity. During the instantaneous compression process, the hemisphere and the valve seat have a squeezing and cutting effect to remove the scale and adhesion on the sealing surface, which can ensure a tight and reliable seal;

6.Easy maintenance: The hemisphere can be installed from the top of the valve body, which can realize online maintenance.

• product standards: GB/T12224, ASTMB16.34, GB/T 26146
• Nominal pressure: PN0.6-PN6.4 (150LB~300LB)
• Nominal diameter: DN40-DN1600 (1 1/2″-64″)
• Main material: WCB, CF8, CF8M, CF3, CF3M, WC6, WC9, ZG20CrMo
• Using temperature: ≤540℃
• Applicable media: water, seawater, sewage, air, steam, mud, dust, waste residue, water-coal slurry, coal powder particles, etc.
• Connection method: flange, clamping, welding
• Transmission method: worm gear, pneumatic, electric