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JinZe valve network: The valve opening and closing parts and the shape of the valve flow path allow the valve to have certain flow characteristics. This must be taken into account when selecting the valve.
1. Truncated and connected media valves
Usually choose the flow resistance is smaller, the flow path for the straight-through valve, this type of valve has a gate valve, globe valve. Plunger valve. Down-closed valves are less preferred due to the tortuous flow path and higher flow resistance than other valves. However, closed valves can also be used where higher flow resistance is allowed.
2. Valves for controlling flow
Usually choose valves that are easy to adjust flow. Such as regulating valve, throttle valve, piston valve, because of its proportional relationship between the size of the seat and the opening and closing of the trip. Rotary (such as plug valves, ball valves, butterfly valves) and flexure valve (pinch, diaphragm valve) valves can also be used for throttling control, but are usually light in the range of limited valve diameters. In most cases, people usually use a change in the shape of the valve flap to throttle. It should be noted that it is extremely unreasonable to achieve a throttling effect by changing the opening height of a gate valve or a shutoff valve. Because, in the management of the medium in the throttling state, the flow rate is high, the sealing surface is washed and worn, and the seal is not cut off. Similarly, using the throttle valve as a cutting device is not unreasonable.
3, valve for reversing diversion
According to the need of commutation diversion, this valve can have three or more channels. The matter is to choose the plug valve to drink the ball valve. Most of the commutated diverter valves use this type of valve. In some cases, other types of valves, suitably interconnected by two or more, may also be used as commutating diverts of the medium.
4. Valves for media with suspended particles
If the media has suspended particles, it is best to use a wiper valve with sliding of its opening and closing parts along the sealing surface. Such as flat gate valve
1. Truncated and connected media valves
Usually choose the flow resistance is smaller, the flow path for the straight-through valve, this type of valve has a gate valve, globe valve. Plunger valve. Down-closed valves are less preferred due to the tortuous flow path and higher flow resistance than other valves. However, closed valves can also be used where higher flow resistance is allowed.
2. Valves for controlling flow
Usually choose valves that are easy to adjust flow. Such as regulating valve, throttle valve, piston valve, because of its proportional relationship between the size of the seat and the opening and closing of the trip. Rotary (such as plug valves, ball valves, butterfly valves) and flexure valve (pinch, diaphragm valve) valves can also be used for throttling control, but are usually light in the range of limited valve diameters. In most cases, people usually use a change in the shape of the valve flap to throttle. It should be noted that it is extremely unreasonable to achieve a throttling effect by changing the opening height of a gate valve or a shutoff valve. Because, in the management of the medium in the throttling state, the flow rate is high, the sealing surface is washed and worn, and the seal is not cut off. Similarly, using the throttle valve as a cutting device is not unreasonable.
3, valve for reversing diversion
According to the need of commutation diversion, this valve can have three or more channels. The matter is to choose the plug valve to drink the ball valve. Most of the commutated diverter valves use this type of valve. In some cases, other types of valves, suitably interconnected by two or more, may also be used as commutating diverts of the medium.
4. Valves for media with suspended particles
If the media has suspended particles, it is best to use a wiper valve with sliding of its opening and closing parts along the sealing surface. Such as flat gate valve
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