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概述 三通球阀系列对介质流向的不同切换要求可分为Q44L型与Q45T型， 如图A．L型可实现对介质流向进行切换，亦可使相互垂直的两个通道连通或关闭。 如图B．T型可实现对介质的分流或混流，不仅可以实现介质流向的切换， 也可使三个通道互相连通，还可以关闭任一通道，连通另外两个通道。 本阀门具有结构紧凑．造形美观．密封性能好等特点。 Summary According to different switching requirements to the flow direction of medium, three-way ball valve series can be divi-ded into two types:Q44L ａnd Q457. As shown in Fig. A, L-type cannot oniy switch the flow direction of medium but o-nly connect or close two orthogonal pipes. As shown in Fig.B, T type cannot only switch the flow direction of medium, bu-t also connect three pipes with each other, or close any one of three ways and connect the other two pipes. This valve ha-s such advantages as compact structu re, beautiful outline, a-nd good sealing performance, etc 三通球阀介质流向示意图 Sketch of Medium Flow-direction of Three-way BallValve 三通球阀用于分流或汇台流通，是具有=面或四面阀座的多通口球蠲．任一通口可用作入 口而无泄漏。三通既可制成L型通口也可制成T型通口。 Three-way ball valve is used for diffluence or confHlue.t circulalio. With two-sid. or four-sida valve base embodying multiple channels All the channals can be used as e.t,ance. with no leakage The three-way can be made to L-shaped channel or T-shaped channel 主要性能规范 Main Specifications 试验压力（MPa） Testpressure 公称压力PN Nonial pressure（MPa） 1.6 2.5 壳体强度试验 Shellstrength test 2.4 3.75 密封试验（液） Seal test 1.76 2.75
| | 主要零件材料Material of Main Parts
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主要外形及连接法兰尺寸Q64（4、5）（F、N、P）-16 Mani Outline and Connecting Flange Size
| 公称通径 Nominal size | 外形尺寸Outline Size | 连接法兰尺寸Connecting Flange Size |
| 执行器型号* Actuator Model | |||||||||
| mm | in | L | L0 | L1 | L2 | H | D | D1 | D2 | C | f | n-φd | |
| 15 | 1/2 | 150 | 75 | 140/178 | 62/75 | 185/191 | 95 | 65 | 46 | 14 | 2 | 4-φ14 | GTD52/GTE65 |
| 20 | 3/4 | 150 | 75 | 164/214 | 75/91 | 197/225 | 105 | 75 | 56 | 16 | 2 | 4-φ14 | GTD65/GTE80 |
| 25 | 1 | 180 | 90 | 164/214 | 75/91 | 199/227 | 115 | 85 | 65 | 16 | 2 | 4-φ14 | GTD65/GTE80 |
| 32 | 11/4 | 200 | 100 | 190/295 | 91/112 | 240/266 | 140 | 100 | 76 | 18 | 3 | 4-φ18 | GTD80/GTE100 |
| 40 | 11/2 | 220 | 110 | 210/295 | 101/112 | 255/271 | 150 | 110 | 84 | 18 | 3 | 4-φ18 | GTD90/GTE100 |
| 50 | 2 | 240 | 120 | 247/340 | 112/127 | 286/307 | 165 | 125 | 99 | 20 | 3 | 4-φ18 | GTD100/GTE115 |
| 65 | 21/2 | 260 | 130 | 276/398 | 127/139 | 330/335 | 185 | 145 | 118 | 20 | 3 | 4-φ18 | GTD115/GTE125 |
| 80 | 3 | 280 | 140 | 308/438 | 139/159 | 349/383 | 200 | 160 | 132 | 20 | 3 | 8-φ18 | GTD125/GTE145 |
| 100 | 4 | 320 | 160 | 348/562 | 159/206 | 421/4874 | 220 | 180 | 156 | 22 | 3 | 8-φ18 | GTD145/GTE190 |
| 125 | 5 | 380 | 190 | 432/724 | 176/228 | 485/557 | 250 | 210 | 184 | 22 | 3 | 8-φ18 | GTD160/GTE210 |
| 150 | 6 | 440 | 220 | 524/928 | 228/275 | 582/629 | 285 | 240 | 211 | 24 | 3 | 8-φ22 | GTD210/GTE255 |
| 200 | 8 | 550 | 275 | 648/1033 | 275/324 | 702/750 | 340 | 295 | 266 | 24 | 3 | 12-φ22 | GTD255/GTE300 |
主要外形及连接法兰尺寸Q64（4、5）（F、N、P）-25 Mani Outline and Connecting Flange Size
| 公称通径 Nominal size | 外形尺寸Outline Size | 连接法兰尺寸Connecting Flange Size |
| 执行器型号* Actuator Model | |||||||||
| mm | in | L | L0 | L1 | L2 | H | D | D1 | D2 | C | f | n-φd | |
| 15 | 1/2 | 150 | 75 | 164/214 | 75/91 | 191/219 | 95 | 65 | 46 | 14 | 2 | 4-φ14 | GTD65/GTE80 |
| 20 | 3/4 | 150 | 75 | 164/214 | 75/91 | 197/225 | 105 | 75 | 56 | 16 | 2 | 4-φ14 | GTD65/GTE80 |
| 25 | 1 | 180 | 90 | 190/246 | 91/101 | 227/237 | 115 | 85 | 65 | 16 | 3 | 4-φ14 | GTD80/GTE90 |
| 32 | 11/4 | 200 | 100 | 210/295 | 101/112 | 256/266 | 140 | 100 | 76 | 18 | 3 | 4-φ18 | GTD90/GTE100 |
| 40 | 11/2 | 220 | 110 | 247/340 | 112/127 | 271/292 | 150 | 110 | 84 | 18 | 3 | 4-φ18 | GTD100/GTE115 |
| 50 | 2 | 240 | 120 | 276/398 | 127/139 | 307/312 | 165 | 125 | 99 | 20 | 3 | 4-φ18 | GTD115/GTE125 |
| 65 | 21/2 | 260 | 130 | 308/438 | 139/159 | 335/370 | 185 | 145 | 118 | 22 | 3 | 4-φ18 | GTD125/GTE145 |
| 80 | 3 | 280 | 140 | 348/562 | 159/176 | 383/400 | 200 | 160 | 132 | 24 | 3 | 8-φ18 | GTD145/GTE160 |
| 100 | 4 | 320 | 160 | 432/724 | 176/228 | 438/510 | 235 | 190 | 156 | 24 | 3 | 8-φ22 | GTD160/GTE210 |
| 125 | 5 | 380 | 190 | 524/928 | 228/275 | 557/604 | 270 | 220 | 184 | 26 | 3 | 8-φ26 | GTD210/GTE255 |
| 150 | 6 | 440 | 220 | 648/1033 | 275/324 | 629/677 | 300 | 250 | 211 | 28 | 3 | 8-φ26 | GTD255/GTE300 |
| 200 | 8 | 550 | 275 | 715/1129 | 324/380 | 750/808 | 360 | 310 | 274 | 30 | 3 | 12-φ26 | GTD300/GTE350 |
※注：系列球阀结构长度及连接法兰尺寸可根据用户要求设计制造。
※注：数据xxx，xxx分别是气动执行器双作用式，单作用式（弹簧复位）。
※洼：*根据不同阀门扭矩、使用介质适配的执行器型号可能有所不同．相关尺寸随之变化。
Note：The structural length and connecting flange size of ball valve series can be designed and manufactured users'
requirements.
Note：Data x x x/x x x represent respectiwly the double-acting/single-acting type(spring reposition) of pneumatic actuator
Note：*The relative sizes are subject to change responding to the difference in valve to torque, medium and actuator model.
