三通式旋塞閥的啟閉件呈圓柱形或圓錐形。圓柱形旋塞其通道截面呈矩形或圓形的旋塞通道為L形或T形，L形通道有三種分配形式，T形通道有四種分配形式  RETZ The opening and closing parts of three-way plug valves are cylindrical or conical. Cylindrical tap with rectangular or circular channel section is L-shaped or T-shaped. L-shaped channel has three distribution forms and T-shaped channel has four distribution forms

進口三通旋塞閥規范說明/Description of specifications

設計制造標準：API599、API6D、GB12240

結構長度標準∶ASMEB16.10、GB12221、EN558

連接法蘭標準∶ASME B16.5、HB 20592 、EN1092

壓力溫度等級：ASMEB16.34 

試驗檢驗標準∶API598、API6D、DIN3230、GB13927

規格尺寸：1”～12”

公稱壓力：CL150-900LB

適應溫度：-29～120℃

進口三通旋塞閥工作原理 working principle

根據不同工況，三通旋塞閥可設計成" L' 類型或" T" 類型 The three-way plug valve can be designed as "L 'type or" T "type according to different working conditions                                           

旋塞結構形式（1）Plugstruture

流通形式Media flowing forms ①A→B ②B→C ③全關Fully closed

旋塞結構形式（2）Plugstruture

流通形式Mediaflowingforms ①A-B→C ②全關Fullyclosed

旋塞結構形式（3）Plugstruture

流通形式Media flowing forms ①A-B ②B-C

旋塞結構形式（4）Plugstruture                                                      

流通形式Mediaflowingforms ①A-B ②B-C ③全開Fullyclosed

旋塞結構形式（5）Plugstruture

流通形式 Mediaflowingforms ①A-B-C ②A-B ③B-C A-C

主要零部件材料 Main parts and materials