WCB Stainless Steel Eccentric Hemispherical Valve With Side Entry
Product introduction:
Eccentric hemispherical valve is a common spherical valve where the contact between the hemispherical disc and the valve seat is different from that of a through hemispherical valve or a rotary ball valve. In eccentric hemispherical valves, the centerline of the hemispherical valve disc is not located on the centerline of the valve seat, thus achieving precise adjustment and control.
Eccentric hemispherical valve is a valve product widely used in Europe and America in recent years. It drives the eccentric hemisphere to rotate by rotating the worm gear (or electric) mechanism, thereby achieving the opening and closing of the valve. Low flow resistance, reliable sealing, and stable performance. Widely used in municipal sewage treatment, water supply, and other fluid control systems.
Product technical parameters:
Nominal Diameter DN (mm) | 50 -1400 | |
Nominal Pressure PN (MPa) | 1.6 - 6.4 | |
Test Pressure (MPa) | Strength (water) | 2.4 - 9.6 |
Enclose (Water) | 1.76 - 7.04 | |
Main Components | Body | WCB, CF8, CF8M, CF3, CF3M etc. |
Valve ball | WCB, CF8, CF8M, CF3, CF3M | |
Seat | PTFE/Hard alloy | |
Packing | Soft graphite, PTFE | |
Working temperature | ≤300℃ | |
Medium suitable | Water, oil, steam and weak corresive mediums | |
Connection | Flange connection | |
Operational method | Level, worm gear, pneumatic and electric actuator |
Product features:
1. The water loss is zero. Adopting an eccentric structure, after the valve is opened, the flow channel is completely unobstructed and the head loss is zero. Can save a lot of energy.
2. Reliable sealing method. The soft sealing structure has self sealing performance, while the hard sealing structure has elastic compensation performance.
3. Wear resistance and long service life. After the ball valve is opened, the crown is offset inside the valve body and is not directly flushed by the medium.
4. Automatic cleaning function. The edge of the ball crown of the hard sealed eccentric hemispherical valve adopts a blade shape, which can not only scrape off dirt on the valve seat, but also cut off debris.
5. Quick opening and closing. The eccentric crankshaft can be opened and closed by rotating 90 degrees, with a short opening and closing time
6. Suitable for high flow rates. The straight passage and sturdy eccentric crankshaft make it suitable for high flow rates and vibration free.