The angle type control valve in the valve repair work, the proportion of small, but in the entire valve repair work, its importance can not be ignored, and the repair work safety valve repair, valve repair of high precision requirements. Jiangyin OuLeiShi valve repair factory, think: under normal circumstances, not only need valve repair equipment, also need the diagonal type regulating valve mechanism, proficient in principle angle valve; the following will help us understand what is the angle type valve? The flow path is simple, the angle type control valve resistance is small, generally used for positive (installation). However, in the high pressure drop occasions recommended to use the reverse angle valve, to improve the imbalance of power and reduce the damage on the spool, but also conducive to the flow of a medium, to avoid coking and plug valves. Angle valve used in reverse, in particular should be avoided for a long time to open the case of small opening, in order to prevent the damage caused by the strong oscillation valve. Particularly in the chemical plant trial production stage, due to low load trial production, design process conditions can not meet the requirements quickly, using the reverse angle valve should be avoided as much as possible longer time to open a small opening status, to prevent angle valve damage.
In the modern valve repair in use, particularly in the production process automation control system, the control valve is an important, indispensable link, automated production process is called "hands", is one of the terminal control component in automatic control system. It is composed of the valve actuator and the two part. From the hydraulic point of view, the regulating valve is a throttling element is a local resistance to change, regulating valve is in accordance with the input signal by changing the stroke to change the drag coefficient, so as to achieve the purpose of regulating flow.
The structure and use of angle type control valve
1, angle valve structure
Angle valve body except for the angle, the other structures are similar and single seat valve, characterized by the decision of its flow path is simple, small resistance, especially to adjust the high pressure drop, high viscosity, suspended solids and granular materials containing fluid. It can avoid coking, bonding and blockage phenomenon, but also to facilitate cleaning and self-purification.
2, angle valve, the use of reverse comparison
In general, are being installed angle type control valve, which at the end into the side. Only in the high-pressure differential occasions and high viscosity, easy to coke, medium containing suspended particulate matter in the case, it recommended the reverse installation of the material side into the bottom out. Angle valve used in reverse, the purpose is to improve the imbalance of power and reduce wear on the spool, but also conducive to high viscosity, easy to coke and the flow of medium containing suspended particles, to avoid coking and blocking. More information please use regulating valve repair Jiangyin OuLeiShi valve repair factory www.olschina.com.
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