CJ/T219-2005CJ/T219-2017JB/T10674-20061. Function of remote control float ball valve: Remote control float ball valve, also known as diaphragm remote control float ball valve, is a hydraulic operated valve that has multiple functions and is widely used in various fields
CJ/T219-2005
CJ/T219-2017
JB/T10674-2006
1. Function of remote control floating ball valve: Remote control floating ball valve, also known as diaphragm remote control floating ball valve, is a hydraulic operated valve that has multiple functions and is widely used in various fields. Usually installed at the inlet of elevated water towers or water tanks, when the water level rises to the set position
2. Structural characteristics of remote control floating ball valve: 1. The structure of the ball valve is simple, and the sealing ring is in an active state, making it more convenient for disassembly and maintenance; 2. The sealing surface material is made of plastic, which has good properties ..
Working principle of remote control float valve
1、 Opening process
In the closed position, the ball is tightly pressed against the valve seat by the mechanical pressure exerted by the valve stem.
When the handwheel is turned counterclockwise, the valve stem moves in the opposite direction, and its bottom angular plane causes the ball to detach from the valve seat.
The valve stem continues to lift and interacts with the guide pin in the spiral groove of the valve stem, causing the ball to start rotating frictionlessly.
Until it reaches the fully open position, the valve stem is lifted to the limit position, and the ball rotates to the fully open position.
2、 Closing process
When closing, rotate the handwheel clockwise and the valve stem begins to descend, causing the ball to move away from the valve seat and begin to rotate.
Continuing to rotate the handwheel, the valve stem is subjected to the action of the guide pin embedded in its spiral groove, causing both the valve stem and the ball to rotate 90 ° simultaneously.
When it was about to close, the sphere had already rotated 90 degrees without contact with the valve seat.
During the last few turns of the handwheel, the angular plane at the bottom of the valve stem mechanically wedges and presses the ball tightly against the valve seat, achieving sealing.
