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What is the role of triple eccentric metal seal butterfly valve in petrochemical industry?
Jul , 29 2021
Triple eccentric metal seal butterfly valve plays an important role in petrochemical industry. Triple eccentric metal seal butterfly valve can accurately cut off the working condition in case of failure, which greatly prevents the occurrence of danger. Secondly, three eccentric metal seal butterfly valve operation is also very simple, and it has a strong stability. Triple eccentric metal sealing b...
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What is Gate Valve & Why is Gate Valve
Sep , 28 2021
The opening and closing part of the gate valve is the wedge, the movement direction of the gate valve is perpendicular to the fluid direction, the gate valve can only be fully opened and closed, but cannot be adjusted and throttled. Wedge gate valve can be made into a whole, called solid wedge; It can also be made into a wedge that can produce a small amount of deformation, so as to improve its pr...
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What is Globe Vave & Why Globe Valve
Sep , 28 2021
Globe Valve opening and closing parts are plug-shaped disc, the sealing surface is flat or conical, and the disc moves linearly along the center line of the fluid, the movement forms of the valve stem include the lifting rod type (the valve stem rises and falls, but the hand wheel does not rise and falls), and the lifting rotary rod type (the hand wheel and the valve stem rise and fall together, a...
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What is Ball Valve & Why is Ball Vave
Oct , 29 2021
Ball valve is a kind of valve which uses a ball with a circular passage as the closure, and the ball rotates with the stem to realize the opening and closing action. The Closure of the ball valve is a ball with holes, which rotates around the axis perpendicular to the channel, so as to achieve the purpose of opening and closing the passage. The Ball valve is used to on/off the medium in pipel...
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What is Check Valve & Why is Check Valve
Oct , 29 2021
Check valve is a kind of automatic valve, also known as check valve, one-way valve, return valve or isolation valve. It is a kind of valve whose opening and closing parts are round disc and whose action is produced by its own weight and medium pressure to block medium backflow. Disc movement is divided into lifting type and swing type. Lift check valve is similar to globe valve in structure, only ...
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What is the difference between ball Valve and butterfly Valve
Oct , 29 2021
Ball valve and butterfly valve are two important categories of valves, which are widely used. Ball valve in high temperature and high pressure require strict sealing, flow resistance to small conditions. Butterfly valve is mainly used for low pressure, sealing requirements are not high, the classification of ball valve and butterfly valve is also more. Ball valve can be divided into: metal hard se...
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Installation and use of industrial check valve
Jun , 29 2022
Installation and use of industrial check valve Straight through lift check valve should be installed in horizontal pipeline, vertical lift check valve and bottom valve are generally installed in vertical pipeline, and the medium flows from bottom to top. The installation position of swing check valve is not properly limited. It is usually installed in horizontal pipeline, but it can also be instal...
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How to Distinguish between Rising Stem Gate Valves and Non-Rising Stem Gate Valves?
Dec , 15 2023
1. Non rising stem gate valve: The stem nut is located inside the valve body and in direct contact with the medium. When opening and closing the gate, rotate the valve stem to achieve this. The advantage of this structure is that the height of the gate valve remains constant, so the installation space is small, making it suitable for gate valves with large diameters or limited installation space. ...
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Can Gate Valves and Globe Valves Be Used Interchangeably?
Dec , 15 2023
Structurally Gate valves can rely on medium pressure to tightly close the sealing surface, thereby achieving the effect of no leakage. When opening and closing, the sealing surface of the valve core and valve seat always come into contact and rub against each other, so the sealing surface is prone to wear. When the gate valve is close, the pressure difference between the front and back of the pipe...
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