Double dump valves, also known as double flap valves, are a form of airtight valves commonly used for various industrial applications. With their airtight structure, double dump valves are designed to filter bulky, fibrous materials while maintaining constant air pressure and preventing the blockage of materials. In contrast, rotary valves aim to filter more fluid materials. Since the closure mechanism is securely reinforced, air cannot leak outside of its designated chamber. While double dump valves may be used in a variety of applications, common uses include baghouses, hoppers, and dust collectors. They are designed to move non-stick materials, and these valves are available in various sizes and speeds according to the industry’s needs. Double dump valves are constructed with two air tight doors that alternate leading to twin chambers, which allows material to move through the valve structure while ensuring that no air is released. Because the cycle rotates constantly, material moves at a steady rate. This prevents the accumulation of excess material while also keeping the valve clean and limber. Timing of the door rotations is essential for valve functionality, and the timing must match the rate of the flow of material and the valve’s carrying capacity. If the double dump valve’s rotation occurs either too quickly or too slowly, air seepage is more likely. The valves can be constructed according to a number of different control systems. Pneumatically operated valves, for example, are controlled by electronic signals, whereas counterbalance valves use weights for support. Electric and pneumatic motors can also be used as a third type of control system. This method is the most reliable, although the counterbalance approach tends to be the least expensive. Motors, however, are easy to adjust according to the valve’s specific application. Because the speed of electric or pneumatic motors can be customized according to the rate of material flow easily, this control system tends to result in the least air leakage. The motors are more durable than counterbalance systems as well, and they are available in explosion-proof models that can handle the intense physical demands of industrial applications. Double dump valves typically operate by electric power, and they are relatively easy to maintain. Provided the valve is kept in constant motion, the aggregate cost of maintenance is very low. Furthermore, double dump valves are built to withstand regular flow of bulky materials, so they are designed to be more durable and long-lived than their rotary valve counterparts. Additional routine maintenance, however, will ensure that the double dump valve will last for a long time. Ultimately, double dump valves are a simple, durable alternative to other valves that move bulky, unwieldy materials with minimal air leakage. While maintaining the pressure of the structure, these valves are able to move material at a constant rate through the two-door system. Since many operating and control approaches are available and the speed of the valve’s movement can be adjusted, this is a good, customizable option for many industrial purposes. Double dump valves present an effective, efficient alternative to the single-gate rotary valve.

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This entry was posted on Thursday, January 26th, 2012 at 4:52 am and is filed under . You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.