Ball valves get single-face sealed often upon the seat ring of either after-valve or before-valve and，only in very few of special cases，both before-valve and
After-valve dual-faces are sealed Hence，the ball valve of a V-type ball is so formed as with only half of the sphere(even less)acting at sealing The advantages of the said ball valve：
1、Light，offering an economic benefit which must not be underrate for saving the material，especially the noble metal materials.
2、Small precisely processed surface area，reducing the processing time
3、Can effectively reduce the inertia force of the ball valve at starting
Used to transport fiber and paper pulp etc media The V-type cut on the ball can act as cut-0ff so as to prevent fiber material from adhering in between ball body and seat ring and the V-type ball cal also be used for the flow adjustmen