Lever Operated Wafer Type Manual Butterfly Valve

Butterfly valves are lever-operated and easy and quick to open. A right-angle rotation of the handle provides a complete closure or opening of the butterfly valve. Large Butterfly valve levers are usually comprised of a gearbox, where the hand wheel is joined to the stem by gears. This eases the operation of the Butterfly Valve, but at the expense of speed. The construction of a Butterfly valve lever-operated body varies in design. The most commonly used design is the wafer type that fits between two flanges. The lug wafer design is another common design that joins the two flanges and passes through the holes. Butterfly valves that are lever-operated are even available with threads that are flanged and have butt welding ends, but they are not used often. These advantages are especially important for large valve applications. The best and most obvious advantages are the savings in weight, space, and cost. 

We are the largest valve manufacturers in China, with metal discs mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the Butterfly valve lever is fully open, the disc is rotated a quarter turn so that it allows unrestricted passage. Butterfly valve levers may also be opened incrementally to regulate flow. There are different kinds of lever-operated wafer-type manual butterfly valves, each adapted for different pressures and different usage. When the butterfly valve is closed, the disc is turned so that it totally shuts off the passageway. When the Butterfly valve lever is fully open, the disc is rotated at a quarter turn so that it allows unrestricted passage. The Butterfly valve lever may also be opened incrementally to regulate flow. There are different kinds of butterfly valves that are adapted for different pressures and different uses. A Butterfly valve lever-operated is a rotational motion valve with a quarter turn. It is used to stop, regulate, and start flow.