水压调节器v230y.

对于LPG. 用于液化天然气 适用于石油

V230Y先导驱动自动差压控制阀，由控制阀体，致动器，定位弹簧，不锈钢波纹管，外压力龙头和全部。阀门不需要从外部供电源的任何辅助能量，通过使用介质本身压力作为动力，它可以自动控制和稳定中压。该阀门具有高的调节精度。It is mainly used for keeping the pressure of protecting gas (such as Nitrogen ) on tank’s top to be constant ,in ordert to avoid the material in the tank contacting with air,avoid volatilizing and oxygenizing of material and keep the safe of the tank.It is especially suitable for the various gas seal protection system! V230Y command operated self-operated micro-pressure control valve is characterized by power saving, effectively handle, convenient to operate and maintain etc. It is widely used in the oil and chemical etc industrials. Working principle V230Y command operated self-operated differencial pressure control valve as shown in figure 1.It guides the medium which is set on the tank top’s pressure tapping point to testing organization(7). The medium contacting on the testing component will produce an acting force which is balance to the preset pressure of spring. When the pressure in the tank fall to lower than Nitrogen supply equipment’s set pressure, the balance will be broken ,so the monitor’s plug opened, and the gas from front valve goes into actuator’s upper and lower case through pressure relief valve and throttle valve, at last it opens the plug and fill gas to the tank; when the tank’s inside pressure up to air supply