Product Introduction
High pressure regulator valve in the automatic control of modern factories, the regulating valve plays a very important role. The production of these factories depends on the correct distribution and control of the flowing medium. These controls, whether energy exchange, pressure reduction, or simple container feeding, require some final control element to perform.
Regulating valve belongs to the control valve series, the main role is to adjust the pressure, flow, temperature and other parameters of the medium, is the final control element in the process loop.
Product Structure
High pressure regulator valve body types are many, commonly used valve body types are through single seat, through double seat, Angle, diaphragm, small flow, three, eccentric rotation, butterfly, sleeve type, spherical and so on.
(1) The shape and structure of the spool
Mainly according to the selected flow characteristics and unbalanced force and other factors considered.
(2) Wear resistance
When the fluid medium is a suspension containing high concentrations of abrasive particles, the internal material of the valve should be hard.
(3) Corrosion resistance
As the medium is corrosive, try to choose a simple valve structure.
(4) Temperature and pressure of the medium
When the temperature and pressure of the medium are high and vary greatly, the material of the valve core and the valve seat should be selected by the small change in temperature and pressure of the valve, and the radiator should be added when the temperature is greater than or equal to 250℃.
(5) To prevent flash and cavitation
Flash and cavitation occur only in liquid media.In the actual production process, flash and cavitation will form vibration and noise, shorten the service life of the valve, so the valve should be selected to prevent flash and cavitation.
How to maintain regulating valve
Regulating valve after normal operation to carry out maintenance and maintenance.Regulating valve as a part of the automatic control system, its maintenance should be carried out at the same time with automatic instruments and other equipment.
The maintenance of the regulating valve is similar to the maintenance of the general instrument, which can be divided into passive maintenance, preventive maintenance and predictive maintenance.Passive maintenance is a maintenance method to be carried out only when the regulating valve and other equipment fail. Due to the maintenance of equipment failure, it often causes the production process to stop, and even equipment damage or casualties in serious cases. Passive maintenance is the maintenance that is not expected in the production process. Preventive maintenance is a maintenance method that carries out maintenance according to the past operation experience.For example, the commonly used regular maintenance is preventive maintenance, which makes the corresponding maintenance schedule according to the operation of different equipment, and carries out maintenance before the failure of the equipment.The probability of failure can be greatly reduced because maintenance is carried out before the failure occurs. But this maintenance method does not analyze the actual situation of the current use of the regulating valve, often can also be used for a certain time for disassembly and inspection of the regulating valve, a waste of time and resources.Predictive maintenance from the current use of the control valve data analysis, foresee the state of the control valve, so that the control valve to get the maximum utilization.
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