What is the paddle control?
The drive is a hydraulic or pneumatic device used to supply partial movement activation for secondary equipment such as butterfly and ball valves. Unlike conventional types of cylinders and pistons, the blade drive has a straight shoulder blade that moves in a closed chamber by liquid or gas pressure to move activation movement. The chamber, usually shaped as a clam, is equipped with a pair of input ports used to introduce fluid on one side of the shoulder blade or the other, allowing mechanism for bidirectional movement. Depending on the specific design of the controller, the blades may be either one -off or double -sided, with some types of drivers with several blades. When used to control large quarter-speed valves, such as butterfly and ball valves, partial bay mother is often employed. These drivers are designed to produce a powerful rotation movement with a rotation with a full 360 ° turn or less. Are capable of two -way movement withinclude forward and return valves in a liquid or gas system.
Most variants of the variant drive use one shovel of disposable or double -sided design, although some types use several shoulder blades. Single -free on -board drives usually consist of a clam -shaped pressure chamber. The working shaft used to transmit the drive movement leaves the chamber at the bottom of its narrow side. The scoop is attached to the shaft at its one end, allowing it to turn the arch over the wide side of the chamber. The tip of the shoulder blade is equipped with a seal that is maintained in contact with the inner surface of the chamber wall throughout the rotation.
Because the seal is in contact with the wall wall of the chamber, it effectively divides the pressure chamber into two separate sections at any given point in the blade arc movement. Two entry ports are found on both sides a wide part ofEven the chambers, which allows to introduce pressure fluid or gas on one side of the shoulder blade or on the other. When the liquid or gas is introduced on one side, it pushes the shoulder blade from it to the opposite side of the chamber. To reverse the process, the direction of fluid or gas is switched, allowing it to enter the opposite side of the shoulder blade and move it back to the other side of the chamber.
When the shoulder blade is connected to the shaft, this movement is transferred to it and then to the secondary mechanism. The double -sided types of the blade controls work in the same way as one -sided types and leave the shaft connected to the shoulder blade in the center rather than at one end. Multiple drivers with multiple blades are also governed by the same basic operational principle, but use more sets of directional-opus shovels.