本[Běn]公司生産的系列自力式[Shì]微壓調[Diào]節閥是一種(Zhǒng)▿無▿需外來能源的 節能型産品(Pǐn)，利[Lì]用工業管道中介質的壓力變化與信号(Hào)進(Jìn)行(Háng)比較， 使被調[Diào]節介質的(De)力與執行機構的輸出力平衡(Héng)，以達⋄到⋄穩定∆壓∆力、 差壓值。 

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.