Also known as gate valve, gate valve, is widely used as a valve.
Working Principle: gate valve seat sealing surface with a high degree of sealing surface bright and clean, smooth, consistent and processed into a very fitting, tight sealing vice. Gate through the stem to the lower pressure, the formation of the media and on-off. Play it off line role.
Advantages: small fluid resistance; full when the sealing surface from erosion; can be two-way flow of media use, there is no direction; durable; not only suitable for small valves, and valve can be bigger.
Disadvantages: high big; hoist a long time; bulky; repair difficult; If it is large diameter valve, relatively easy manual operation.
According to the different valve stem and dark leveraged leveraged clear; gate structure according to different sub-parallel and wedge; have a single gate, the sub-˫բboard. Heating projects, commonly prescribed under the single-wedge gate valve (Z41H-16C) and dark under a single gate valve wedge (Z45T-10), the former is installed in one side of the thermal station, which is loaded thermal stations in the secondary side. It is usually played two roles: as a master switch from the role; as an auxiliary equipment before and after the main equipment used for maintenance.
Valve installation, not to hand round the horizon in the following (flip), or make long-term retention medium in the valve cover, easy to stem erosion. Works in the heating, the valve was the main force of the valve. Now widely used as the butterfly valve, butterfly valve has been replaced.

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