Monday, November 29, 2010

(a)Heating valve commonly used on the project

Many different types of valves, the use of a very wide scope. Sometimes it is in the pipeline is the main equipment, from control; sometimes it is a secondary device, play a supporting role. If used improperly, we will have "run, run, drip, drain" phenomenon, light from the impact of production, in serious cases lead to accidents. Therefore, understanding and proper use of valves is a very important issue.

     First, valve Categories

     In the heating system, use the valve there are many. Such as gate valve, globe valve, ball valve, butterfly valve, check valve, safety valve, regulating valve, balance valve, self-balance valve and so on. Introduce them one by one below.

     1.1 Gate

     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-双闸board. 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.

We can offer more Knife Gate Valve Information.If you need us according your spcification to produce the Knife Gate Valve .
Need, please e-mail to valve401@gmail.com

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