Standards for pneumatic ball valves
Pneumatic ball valve (ball valve) is defined as a valve in the standard GB/T21465-2008 "Valve terminology", in which the opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the pneumatic ball valve. It can also be used for fluid regulation and control. The hard sealed V-shaped pneumatic ball valve has a strong shear force between the V-shaped core and the hard alloy metal seat. Especially suitable for fiber and small solid particles. Materials and other media. Multi port pneumatic ball valve can not only flexibly control the convergence, divergence and flow direction switching of media on the pipeline, but also close any channel to connect the other two channels. Such valves shall normally be installed horizontally in the pipeline. Pneumatic ball valve can be divided into pneumatic ball valve, electric pneumatic ball valve and manual pneumatic ball valve according to the driving mode.
Wear resistance; Since the core of the hard seal pneumatic ball valve produced by Shanghai Wotuo Valve Co., Ltd. is spray welded alloy steel, and the seal ring is alloy steel surfacing, the hard seal pneumatic ball valve will not have too much wear when used to open and close. (Its hardness coefficient is 65-70):
2. Good sealing performance; Since the seal of hard seal pneumatic ball valve is manually ground, it cannot be used until the valve core and seal ring are completely matched. Therefore, its sealing performance is reliable.
3. The switch is on; Since the bottom of the sealing ring of the hard sealed pneumatic ball valve uses a spring to hold the sealing ring and the valve core tightly together, when the external force exceeds the preload of the spring, the switch is very light.
