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    Home > Active Ingredient News > Drugs Articles > Self operated pressure reducing valve has many superior performance analysis

    Self operated pressure reducing valve has many superior performance analysis

    • Last Update: 2019-09-10
    • Source: Internet
    • Author: User
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    The self operated pressure reducing valve does not need additional energy, uses the energy of the regulated medium itself as the power source to introduce the actuator to control the position of the valve core, changes the pressure difference and flow at both ends, makes the pressure in front of the valve (or behind the valve) stable, has the advantages of sensitive action, good sealing, small pressure set point fluctuation, etc., and is widely used in the self pressure reducing and stabilizing or pressure relief and stabilizing of gas, liquid and steam medium Dynamic control The self operated pressure reducing valve is composed of valve body, valve seat, valve core components, etc it is a kind of energy-saving product that can automatically adjust the pressure by relying on the pressure change of the regulated medium without external energy It can be used for the pressure control device of non corrosive liquid, gas, steam and other media The self operated pressure reducing valve is widely used in oil, chemical industry, metallurgy, light industry and other industrial sectors, as well as in the automatic control of various equipment gas, liquid and steam media in urban heating and heating system, such as deceleration pressure, pressure stabilization (used for pressure reduction behind the valve), pressure relief and pressure stabilization (used for pressure control in front of the valve) According to different working conditions of users, the pressure reducing valve can choose different valve core structure types and different actuators to achieve the control effect The product can work in the place without electricity and gas, and save energy at the same time The pressure setting value can be adjusted at will during operation It adopts the characteristics of quick opening flow, sensitive action and good sealing performance, so it is widely used   The energy-saving automatic control system of self operated pressure reducing valve without additional driving energy is low in equipment cost and suitable for explosive environment; the structure is simple and the maintenance workload is small; the set point is adjustable and the range is wide, which is convenient for the user to adjust continuously within the set range; the diaphragm actuator has higher detection accuracy and sensitive action than the air cylinder mechanism; the pressure balance mechanism is used in the valve to make the regulating valve reverse It shall be sensitive, controlled and with large allowable pressure difference Due to the advantages of no external energy, simple structure, convenient use and less maintenance work, the self operated pressure reducing valve is especially suitable for urban heating, heating and the occasions where there is no external power supply, gas supply and liquid and gas pressure need to be controlled The medium flows into the valve body from the arrow direction, throttles through the valve core and valve seat, and then outputs The other way is cooled by the condenser (used when the medium is steam), and is introduced into the actuator to act on the diaphragm, so that the valve core will have corresponding displacement, so as to achieve the purpose of pressure reduction and stabilization If the pressure behind the self operated pressure reducing valve increases, the force acting on the diaphragm increases, and the compression spring drives the valve core to reduce the opening degree of pressure reducing until the pressure behind the valve drops to the set value Similarly, if the pressure behind the valve is reduced, the pressure acting on the diaphragm will be reduced Due to the reaction force of the spring, the valve core will be driven to increase the opening degree of the valve until the pressure behind the valve rises to the set value  
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