一、產(chǎn)品概述

　　該閥由閥體、閥座、閥芯部件等組成，是一種無(wú)需外來(lái)能源而只依靠被控介質(zhì)自身的壓力變化進(jìn)行自動(dòng)調節壓力的節能型產(chǎn)品，可用于非腐蝕性的液體、氣體和蒸氣等介質(zhì)的壓力控制裝置。廣泛用于石油、化工、冶金、輕工等工業(yè)部門(mén)及城市供熱．供暖系統。

The valve is made up of body, valve seat, and valve core ect，which can adjust pressure automatically.And the valve can save the energy because it does not need extra energy just by the mutation pressure of controlled medium itself. It is applicable to pressure control devices medium of which are non-erosive liquid, gas，and vapour.

The valve is applied to heating system in city and the field of petroleum, chemistry, metal lurgy，light industrial.

　　二、主要技術(shù)參數

　　三、主要零部件材料