The PPR stop valve is a plug-shaped valve disc, the sealing surface is flat or conical, and the valve disc moves linearly along the center line of the fluid. The movement form of the valve stem has a lifting rod type (the valve stem is raised and lowered, the hand wheel does not rise), and there is a lifting rotating rod type (the hand wheel and the valve stem rotate and rise together, and the nut is set on the valve body). The PPR stop valve is only suitable for fully open and fully closed, adjustment and throttling are not allowed.
The PPR ball valve has a compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often closed, not easy to be eroded by the medium, and easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene, and is widely used in various industries. The ball valve body can be integral or combined.