Description of the six advantages of the flange ball valve structure

The flange ball valve is one of the ball valves. In fact, the ball valve and the gate valve are the same type of valve, but the appearance is different. The difference is that the closing member is a sphere, and the ball rotates around the valve body to achieve opening and closing. A valve. The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. Flange ball valve standard GB/T21465-2008 "Valve terminology" is defined as: the opening and closing member (sphere) is driven by the valve stem and rotates around the axis of the valve stem.
American standard flange ball valve
Six advantages of flanged ball valve construction
1, open and close without friction
This function completely solves the problem that the conventional valve affects the seal due to the friction between the sealing faces.
2, top-loading structure
The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the parking of the device and reduce the cost.
3, single seat design
It eliminates the problem that the cavity medium in the valve affects the safety of use due to abnormal boosting.
4, low torque design
The specially designed valve stem can be easily opened and closed with a small handwheel valve.
5, wedge seal structure
The valve is based on the mechanical force provided by the valve stem, and the ball wedge is pressed onto the valve seat to seal, so that the sealing property of the valve is not affected by the change of the pressure difference of the pipeline, and the sealing performance is reliably guaranteed under various working conditions.
6. Self-cleaning structure of sealing surface
When the ball is tilted away from the valve seat, the fluid in the pipeline passes through the spherical sealing surface at 360°, which not only eliminates the high-speed fluid scouring on the valve seat, but also washes away the accumulation on the sealing surface to achieve self-cleaning.