本公司(sī)生産(chǎn)的(de)系(xì)列自力式(shì)微壓調節閥是一種無需(xū)外來(lái)能源的 節能型(xíng)産品(pǐn)，利(lì)用工業(yè)管道中(zhōng)介(jiè)質的(de)壓力變化與信(xìn)号進(jìn)行比(bǐ)較， 使(shǐ)被調節介質的(de)力與(yǔ)執行(háng)機構的(de)輸(shū)出力平衡(héng)，以達到穩定壓(yā)力、 差壓(yā)值。 

the series of self operated micro pressure regulating valve produced by the company is an energy-saving product without external energy. the pressure change and signal of the medium in the process pipe- line are compared to make the force of the regulated medium and the output force of the actuator balance， so as to achieve stable pressure and differential pressure.