CAST IRON GATE VALVE Bolted bonnet,Outside screwed & yoke,Rising stem,
閥體 BODY CAST IRON (FC20) 閥蓋 BONNET CAST IRON (FC20) 閥桿 STEM STAINLESS STEEL (410) 閥盤(pán) DISC CAST IRON (FC20) 座環(huán) SEAT RING CAST BRONZE (B62) 格蘭 GLAND DUCTILE IRON (FCD45) 迫緊 PACKING ASBESTOS 手輪 HANDWHEEL CAST IRON (FC20)
120°C以下之靜流水
120°C以下之脈動(dòng)水 14以上