What are the structural shapes of the eccentric hemisphere valve, what are their respective characteristics?
Structure and characteristics of eccentric hemisphere valve1, a type: mainly for erosion is very serious in the medium, upper structure replaced maintenance loss of the opening and closing member is very convenient, without the whole valve removed from the pipeline, greatly saves the maintenance time and cost.2, side mounted: side mounted compact structure, valve quality light, applicable to the valve installation space requirements, the light valve of the leading product seems to be eccentric hemisphere valve!
Two, characteristicsThe eccentric hemisphere valve is mounted type structure. The valve installed on the pipeline can be directly checked and maintained, which can effectively reduce the device parking and reduce the cost.Eccentric semi spherical valve is single valve seat design. The utility model eliminates the problem that the medium of the valve in the valve is influenced by the abnormal voltage increase.Low torque design. Special structural design of the valve stem, with only a small hand, the valve can easily open and close.No friction at opening and closing. This function completely solves the problem that the traditional [wiki] valve [/wiki] affects the sealing because of the friction between the sealing surfaces.Wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the ball wedge to the seat and seal, so that the valve sealing is not affected by changes in pipe pressure, in a variety of conditions, sealing performance has a reliable guarantee.The self-cleaning structure eccentric semi ball valve sealing surface. When the ball roll off the seat when the fluid in the pipeline along the sealing surface of the sphere into 360 degrees evenly through, not only eliminates the high speed fluid on the seat of local scour, also washed away the sediment on the sealing face, achieve the purpose of cleaning.
I. structural form:The eccentric hemisphere valve is divided into two kinds in its appearance and structure:The coat type: mainly for erosion is very serious in the medium, upper structure replaced maintenance loss of the opening and closing member is very convenient, without the whole valve removed from the pipeline, greatly saves the maintenance time and cost.Side mounted: side mounted, compact structure, light quality valve, applicable to the valve installation space requirements.
The eccentric hemisphere valve and the flange gate valve belong to the same type of valve. The difference is that the closing piece is a sphere, and the ball rotates around the center of the valve body to open and close a valve. Ball valve in the pipeline is mainly used to do cutting, distribution and change the direction of flow medium. Two piece ball valve, three piece ball valve, is widely used in recent years, a new type of valve.
