What kind of electric stainless steel ball valve is better?
4, the valve stem seal is reliable, because the stem only for imitation rotation transported without movement, stem packing seal is not easy to damage, and sealing ability increased with the increase of the pressure medium.5, because PTFE and other materials have good self lubrication, and ball friction loss is small, so the ball valve service life is long6, downloading the stem and the stem head convex order to prevent the stem spray, such as stem seal damage caused by fire, convex order and the body can be formed between the metal contact, to ensure that the valve stem seal.
1, fluid resistance is small, the ball valve is the smallest of all types of fluid resistance, even if the diameter of the ball valve, its fluid resistance is quite small2 、 thrust bearings reduce the friction torque of the stem, so that the valve stem can be operated stably for a long time3, the valve seat sealing performance is good, using PTFE and other elastic materials made of sealing ring, the structure is easy to seal, and the ball valve sealing capacity as the medium pressure increases
Electric stainless steel ball valve and plug valve is the same type of valve, only its closure is a sphere, the sphere rotates around the body center line to achieve the opening and closing a valve. The flow direction valve in the pipeline is mainly used for cutting, distribution and change the medium. Ball valve is a new valve in recent years to be widely used.
