lined butterfly 是 什麽閥門

襯蝶

Baumann 21000 Elastomer Lined Butterfly Valve angle seating disk design minimizes liner shearing especially on non-lubricated dry gas service.

鮑曼21000橡膠襯裏蝶閥角度座位上剪的設計最大限度地減少對非班輪運輸，特別是潤滑的幹氣服務。