一、產品概述

　　該閥由閥體、閥座、閥芯部件等組成，是一種無需外來能源而只依靠被控介質自身的壓力變化進行自動調節壓力的節能型產品，可用于非腐蝕性的液體、氣體和蒸氣等介質的壓力控制裝置。廣泛用于石油、化工、冶金、輕工等工業部門及城市供熱．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、主要技術參數

　　三、主要零部件材料