三通式旋塞阀的启闭件呈圆柱形或圆锥形。圆柱形旋塞其通道截面呈矩形或圆形的旋塞通道为L形或T形，L形通道有三种分配形式，T形通道有四种分配形式  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

进口三通旋塞阀规范说明/Description of specifications

设计制造标准：API599、API6D、GB12240

结构长度标准∶ASMEB16.10、GB12221、EN558

连接法兰标准∶ASME B16.5、HB 20592 、EN1092

压力温度等级：ASMEB16.34 

试验检验标准∶API598、API6D、DIN3230、GB13927

规格尺寸：1”～12”

公称压力：CL150-900LB

适应温度：-29～120℃

进口三通旋塞阀工作原理 working principle

根据不同工况，三通旋塞阀可设计成" L' 类型或" T" 类型 The three-way plug valve can be designed as "L 'type or" T "type according to different working conditions                                           

旋塞结构形式（1）Plugstruture

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

旋塞结构形式（2）Plugstruture

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

旋塞结构形式（3）Plugstruture

流通形式Media flowing forms ①A-B ②B-C

旋塞结构形式（4）Plugstruture                                                      

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

旋塞结构形式（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