上海夏延阀门有限公司

TECHNICAL FEATURES
GENERAL REMARKS                Our products currently available to fulfill the strict requirements of designers and users.
                The range includes Wafer Style and Lug Style Butterfly Valves in the size range of DNS0-DN600 which can be installed with pneumatic and electric actuators. 
                To meet the specification requirements of DIN 3230 has ho leakage， Butterfly Valves with a conentric disc must have a special design emphasis on the seal tolerance between the disc and the Liner.
                The primary seal is achieved by means of the interference between the disc and the surface of the liner， particulaly in the area of the shaft locations， seals in the Liner collours and on the shaft ensure supplementary security.技術特點
總論        我們的產品範圍包括目前現有的一些理論做出的產品，將盡可能地滿足設計師和使用設的利益。蝶閥樣式有對夾式彈性和對夾凸耳式兩類，尺寸範圍在DN50至DN600之間，可搭配氣動或電動執行器。
        爲了使蝶閥能達到零泄漏，這就要求我們要有獨特的設計。獨特之處便是閥體和閥板之間的密封圈。
      密封圈夾在閥體和閥板之間，確保可靠的密封性能和安全。