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天博直播编号:
6131652416
天博直播名称:
Globe valve
规  格:
天博直播备注:
天博直播类别:
电站阀门
 
   产 品 说 明

The globe valve is also known as a gate valve, which is a mandatory sealing valve, so when the valve is closed, it must apply pressure to the disc to force the seal not to leak. When the medium from the disc below to the valve, the operating force to overcome resistance, is stem and packing friction with the thrust produced by medium pressure, close the valve force stronger than open the valve, so it's bigger, the diameter of the stem or stem top bending failure happens. There are three kinds of connection: flange connection, thread connection, welding connection. From sealed valve, cut-off valve is replaced by the disc above the medium flow direction into the valve cavity, in the medium pressure at this moment, close the valve of the force is small, and the strength of the valve, the valve stem diameter can be reduced accordingly. At the same time, this type of valve is also very tight under the medium. In our country, the valve "tri-chemical" has been used to stipulate the flow of the stop valve. When the valve is opened, the disc opens to a maximum of 25 to 30 percent of the nominal diameter. The flow is reached the maximum, indicating that the valve is fully open. So the full open position of the stop valve should be determined by the valve's stroke.

The opening of the stop valve (Globe valve) is a plug of the disc with a flat surface or a sea cone, and the disc moves in a straight line along the centerline of the seat. Stem form of exercise, (generic name: non-rising stem), there are also lift rotating bar type can be used to control air, water, steam, all kinds of corrosive medium, mud, oil, liquid metal and radioactive medium such as various types of fluid flow. Therefore, this type of intercepting globe valve is suitable for cutting or adjusting and throttling. Due to open or close the valve stem travel relatively short, and very reliable cutting function, and due to the change of his seat and disc stroke proportional relationship, is very suitable for the traffic regulation.

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