Its working principle is as follows: First, the opening process 1 In the closed position, the ball by the stem of the [wiki] mechanical [/ wiki] pressure, squeezed on the seat. 2 When turning the handwheel counterclockwise, the stem moves backwards and the bottom angled plane disengages the ball from the seat. 3 The stem continues to lift and interact with the guide pin in the helical groove of the stem to allow the ball to start spinning without friction. 4 until it reaches the fully open position, the stem lifted to the limit position, the ball rotates to the fully open position. Second, the closure process 1 When closed, clockwise hand wheel, stem began to decline and the ball left the seat began to rotate. 2 Continue to rotate the handwheel. The stem is guided by the guide pin embedded in the spiral groove on it, causing the stem and sphere to rotate 90 ° at a time. 3 When it is about to close, the ball has rotated 90 ° without contact with the seat. 4 In the last few turns of the handwheel, the angled plane at the bottom of the stem mechanically wedges the ball to press it tightly against the seat to achieve a complete seal.
Aggregate Batching Plants
This station is suitable for industrial, civil construction, roads, railways, bridges, electric power, water conservancy, port terminals, airports and other projects. It can be used as a mixing equipment for commercial concrete production, and combined various forms different specifications concrete mixing plant according to the needs of different users.
Automatic Batching Machines,Weigh Batching Machine,Material Batching Machine,Aggregate Concrete Batching Machine
Shandong Zeyu Heavy Industry Science and Technology Co.,Ltd. , https://www.sdjzcseriesdrumconcretemixer.com