GI型高真空蝶閥用于接通或切斷真空管路中的氣流。適用介質(zhì)為凈空氣和非腐蝕性氣體。 ■ GI High Vacuum Butterfly Valve ■ GI high vacuum butterfly valve is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. ■ 主要技術(shù)性能 Main Technical Performance ■ ■ ■ 　適用范圍：Applicability 　105～1.3×10-4Pa 　閥門(mén)漏率：Valve Leak Rate 　≤1.3×10-4Pa.L/S. 　適用溫度：Applicable Temperature 　-25～ 80℃(丁腈橡膠) 　-30～ 150℃(氟橡膠) 　安裝方向：Mounting Direction 　任意 ■ 主要零件材料 Materials of Main Parts ■ ■ 閥體、閥蓋、閥桿：碳鋼或不銹鋼 密封件：丁腈橡膠、氟橡膠。 Body, bonnet and stem: carbon steel or stainless steel Sealing element: NBR, Viton CONSTRUCTION FIGHTS(mm) ■ 外形及連接尺寸(mm) Overall and Connection Dimensions(mm) Model 型號(hào) DN D Do D1 B H B1 L n-φc GI-32 32 78 64 36 22 32 36 115 4-φ7 GI-40 40 85 70 44 22 40 36 115 4-φ7 GI-50 50 110 90 55 22 50 36 115 4-φ9 GI-65 65 125 105 70 26 130 38 135 4-φ9 GI-80 80 145 125 85 30 140 38 135 4-φ9 GI-100 100 170 145 105 30 153 38 135 4-φ12 GI-150 150 220 195 156 35 179 40 165 8-φ12 GI-200 200 275 250 208 40 208 40 185 8-φ12 GI-250 250 330 300 258 45 234 45 300 8-φ14 GI-300 300 380 350 308 55 300 55 350 8-φ14 GI-400 400 500 465 408 60 340 60 500 8-φ18