ball valve

Manual dark BanDao shaped gate overview of new products

This knife gate valve is the valve of new varieties, small volume, light weight, light material saving, water, coal slurry, syrup, the mixture of slag slurry, air, water, water supply, paper making, mining and other industries the ideal product.Knife gate valves with metal to metal hard seal, or use a metal to rubber soft seal.In the process of opening and closing, ram and adopted the special design on sealing surface, less friction, durable.This kind of knife gate on the seal broke the conventional form of seal, the cover structure, makes the seal by the large area of the rectangle changed to a small area of the circle, sealed performance is greatly improved.On the basis of the circular sealing, and use of the current international advanced sealing to the area of the circumference of floating seal, sealed performance is greatly improved.On the basis of the circular sealing, and use of the current international advanced floating seal structure (see chart 1), make the seal reach the level of the life with pipeline, thus to improve the service life of the valve as a whole.After the installation of sleeve device gate on the top of the handwheel, all moving parts in a closed state, can make the valve disc and stem of lead screw transmission will not unsmooth by lubricating oil dry.Especially suitable for work for long periods in dust and dry environment (see figure 2).Note: we can according to the requirements of the unit using the environment and to design and production, is suitable for users to install and use.

design and manufacture:jb/t8691-1998
structural length: gb/t15188.2-94

flange connection: gb/t9113.1-2000 jb/t79-94
testing and acceptance: gb/t13927-92

key parts materia

profile and connection dimension unit:mm