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概述
DT673气动对夹式弹性硬密封蝶阀可用于现场要求空间比较窄、管道距离较短的场合。气动对夹蝶阀采用一个“U”型不锈钢密封圈，该精密的弹性密封圈与经过抛光的蝶板三维偏心接触，解决了传统偏心蝶阀在启闭0°～10°瞬间密封面仍处于滑动接触摩擦的弊病,实现蝶板在开启瞬间密封面即分离,关闭接触即密封的效果,达到延长使用寿命、密封性能最佳的目的。气动对夹蝶阀广泛地应用到冶金、电力、石油、化工、空气、煤气、可燃气体以及给排水等腐蚀性介质的管道上，是调节流量和截断流体的最佳装置。
特点
气动对夹蝶阀采用三偏心密封结构，阀座与蝶板几乎无磨损，具有越观越紧的密封功能。
密封圈选用不锈钢制作，具有金属硬密封和弹性密封的双重优点，无论在低温和高温的情况下，均具有优良的密封性能,具有耐腐蚀,使用寿命长等特点。
碟板密封面采用堆焊钴基硬质合金，密封面耐磨损，使用寿命长。
大规格蝶板采用绗架结构，强度高，过流面积大，流阻小。
本阀具有双向密封功能，安装时不受介质流向的限制，也不受空间位置的影响，可在任何方向安装。
驱动装置可以多工位（旋转90°或180°）安装，便于用户使用。
主要技术参数
| 公称通径 | DN | 50～1200 | ||||
|---|---|---|---|---|---|---|
| 公称压力 | PN | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
| 试验压力 | 强度实验 | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
| 密封实验 | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| 气密封实验 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| 适用介质 | 水、蒸汽、油品、酸类腐蚀性等 | |||||
| 适用温度 | 碳钢：-29℃～ 425℃ 不锈钢：-40℃～600℃ | |||||
主要零件材质
| 零件名称 | 材质 |
|---|---|
| 阀体 | 铸铁、铸钢、不锈钢、铬钼钢、合金钢 |
| 蝶板 | 铸钢、合金钢（镀硬铬）、不锈钢、铬钼钢 |
| 密封圈 | 不锈钢、聚内脂、抗磨材料 |
| 阀杆 | 2Cr13、1Cr13不锈钢、铬钼钢 |
| 填料 | 柔性石墨 |
注：Dt-代表弹性密封结构。
主要外形和连接尺寸
| 产品名称 | 公称通径 | 结构长度（标准值）L | 外形尺寸（参考值） | 连接尺寸（标准值） | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| H | Dt373H | Dt673H | Dt973H | PN0.6MPa | PN1.0MPa | ||||||||||||
| mm | inch | H1 | A1 | B1 | H2 | A2 | B2 | H3 | A3 | B3 | D1 | Z-d | D1 | Z-d | |||
| Dt(3.6.9)73H-(6.10)C.P.R.V 系列对夹式弹性金属硬密封蝶阀 |
50 | 2 | 43 | 112 | 350 | 180 | 200 | 625 | 245 | 72 | 530 | 250 | 255 | 110 | 4-14 | 125 | 4-18 |
| 65 | 21/2 | 46 | 115 | 370 | 180 | 200 | 625 | 245 | 72 | 530 | 250 | 255 | 130 | 4-14 | 145 | 4-18 | |
| 80 | 3 | 49 | 120 | 380 | 180 | 200 | 645 | 245 | 72 | 565 | 250 | 255 | 150 | 4-18 | 160 | 8-18 | |
| 100 | 4 | 56 | 138 | 420 | 180 | 200 | 675 | 355 | 92 | 600 | 250 | 255 | 170 | 4-18 | 180 | 8-18 | |
| 125 | 5 | 64 | 164 | 460 | 180 | 200 | 715 | 355 | 92 | 640 | 250 | 255 | 200 | 8-18 | 210 | 8-18 | |
| 150 | 6 | 70 | 175 | 555 | 270 | 280 | 800 | 355 | 92 | 705 | 300 | 315 | 225 | 8-18 | 240 | 8-22 | |
| 200 | 8 | 71 | 208 | 605 | 270 | 280 | 850 | 250 | 170 | 775 | 300 | 315 | 280 | 8-18 | 295 | 8-22 | |
| 250 | 10 | 76 | 243 | 680 | 270 | 280 | 925 | 250 | 170 | 945 | 300 | 315 | 335 | 12-18 | 350 | 12-22 | |
| 300 | 12 | 83 | 283 | 800 | 380 | 420 | 1035 | 450 | 220 | 1070 | 300 | 315 | 395 | 12-22 | 400 | 12-22 | |
| 350 | 14 | 92 | 310 | 835 | 380 | 420 | 1070 | 450 | 220 | 1140 | 300 | 315 | 445 | 12-22 | 460 | 16-22 | |
| 400 | 16 | 102 | 340 | 915 | 450 | 470 | 1190 | 450 | 220 | 1210 | 300 | 315 | 495 | 16-22 | 515 | 16-26 | |
| 450 | 18 | 114 | 380 | 960 | 480 | 490 | 1250 | 650 | 280 | 1335 | 575 | 714 | 550 | 16-22 | 565 | 20-26 | |
| 500 | 20 | 127 | 410 | 1020 | 480 | 490 | 1290 | 650 | 280 | 1415 | 575 | 714 | 600 | 20-22 | 620 | 20-26 | |
| 600 | 24 | 154 | 470 | 1225 | 480 | 490 | 1455 | 850 | 380 | 1605 | 656 | 810 | 705 | 20-26 | 725 | 20-30 | |
| 700 | 28 | 165 | 550 | 1355 | 640 | 660 | 1585 | 850 | 380 | 1844 | 656 | 810 | 810 | 24-26 | 840 | 24-30 | |
| 800 | 32 | 190 | 640 | 1470 | 640 | 660 | 1700 | 1250 | 380 | 2040 | 656 | 810 | 920 | 24-30 | 950 | 24-33 | |
| 900 | 36 | 203 | 710 | 1545 | 750 | 860 | 1965 | 1250 | 380 | 2255 | 785 | 863 | 1020 | 24-30 | 1050 | 28-33 | |
| 1000 | 40 | 216 | 770 | 1795 | 850 | 900 | 2015 | 1250 | 380 | 2380 | 785 | 863 | 1120 | 28-30 | 1160 | 28-36 | |
| 1200 | 48 | 254 | 890 | 1965 | 850 | 900 | 2250 | 1250 | 380 | 2640 | 785 | 863 | 1340 | 32-33 | 1380 | 32-39 | |
| 产品名称 | 公称通径 | 结构长度（标准值）L | 外形尺寸（参考值） | 连接尺寸（标准值） | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| H | Dt373H | Dt673H | Dt973H | PN1.6MPa | PN2.5MPa | ||||||||||||
| mm | inch | H1 | A1 | B1 | H2 | A2 | B2 | H3 | A3 | B3 | D1 | Z-d | D1 | Z-d | |||
| Dt(3.6.9)73H-(16、25)C.P.R.V 系列对夹式弹性金属硬密封蝶阀 |
50 | 2 | 43 | 112 | 350 | 180 | 200 | 625 | 245 | 72 | 530 | 250 | 255 | 125 | 4-14 | 125 | 4-18 |
| 65 | 21/2 | 46 | 115 | 370 | 180 | 200 | 625 | 245 | 72 | 530 | 250 | 255 | 145 | 4-14 | 145 | 8-18 | |
| 80 | 3 | 49 | 120 | 380 | 180 | 200 | 645 | 245 | 72 | 565 | 250 | 255 | 160 | 8-18 | 160 | 8-18 | |
| 100 | 4 | 56 | 138 | 420 | 180 | 200 | 675 | 355 | 92 | 600 | 250 | 255 | 180 | 8-18 | 190 | 8-22 | |
| 125 | 5 | 64 | 164 | 460 | 180 | 200 | 715 | 355 | 92 | 640 | 250 | 255 | 210 | 8-18 | 220 | 8-26 | |
| 150 | 6 | 70 | 175 | 555 | 270 | 280 | 800 | 355 | 92 | 705 | 300 | 315 | 240 | 8-22 | 250 | 8-26 | |
| 200 | 8 | 71 | 208 | 605 | 270 | 280 | 850 | 250 | 170 | 775 | 300 | 315 | 295 | 12-22 | 310 | 12-26 | |
| 250 | 10 | 76 | 243 | 680 | 270 | 280 | 925 | 250 | 170 | 945 | 300 | 315 | 355 | 12-26 | 370 | 12-30 | |
| 300 | 12 | 83 | 283 | 825 | 380 | 420 | 1035 | 450 | 220 | 1070 | 300 | 315 | 410 | 12-26 | 430 | 16-30 | |
| 350 | 14 | 92 | 310 | 900 | 380 | 420 | 1070 | 450 | 220 | 1140 | 300 | 315 | 470 | 16-26 | 490 | 16-33 | |
| 400 | 16 | 102 | 340 | 980 | 450 | 470 | 1190 | 450 | 220 | 1210 | 300 | 315 | 525 | 16-30 | 550 | 16-36 | |
| 450 | 18 | 114 | 380 | 1030 | 480 | 490 | 1250 | 650 | 280 | 1335 | 575 | 714 | 585 | 20-30 | 600 | 20-36 | |
| 500 | 20 | 127 | 410 | 1105 | 480 | 490 | 1290 | 650 | 280 | 1415 | 575 | 714 | 650 | 20-33 | 660 | 20-36 | |
| 600 | 24 | 154 | 470 | 1310 | 480 | 490 | 1455 | 850 | 380 | 1605 | 656 | 810 | 770 | 20-36 | 770 | 20-39 | |
| 700 | 28 | 165 | 550 | 1435 | 640 | 660 | 1585 | 850 | 380 | 1844 | 656 | 810 | 840 | 24-36 | 875 | 24-42 | |
| 800 | 32 | 190 | 640 | 1605 | 640 | 660 | 1700 | 1250 | 380 | 2040 | 656 | 810 | 950 | 24-39 | 990 | 24-48 | |
| 900 | 36 | 203 | 710 | 1745 | 750 | 860 | 1865 | 1250 | 380 | 2255 | 785 | 863 | 1050 | 28-39 | 1090 | 28-48 | |
| 1000 | 40 | 216 | 770 | 1885 | 850 | 900 | 2015 | 1250 | 380 | 2380 | 785 | 863 | 1170 | 28-42 | 1210 | 28-56 | |
| 1200 | 48 | 254 | 890 | 2105 | 850 | 900 | 2250 | 1250 | 380 | 2640 | 785 | 863 | 1390 | 32-48 | 1420 | 32-56 | |
用户注意：表中H1、H2、H3尺寸均可根据用户需要加长（长杆蝶阀），若需特殊材料定货时提出。
注：Dt-代表弹性密封结构。
主要外形和连接尺寸
| 产品名称 | 公称通径 | 结构长度（标准值）L | 外形尺寸（参考值） | 连接尺寸（标准值） | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| H | Dt373H | Dt673H | Dt973H | PN4.0MPa | |||||||||||
| mm | inch | H1 | A1 | B1 | H2 | A2 | B2 | H3 | A3 | B3 | D1 | Z-d | |||
| Dt(3.6.9)73H-40C.P.R.V 系列对夹式弹性金属硬密封蝶阀 |
50 | 2 | 43 | 112 | 350 | 180 | 200 | 625 | 250 | 170 | 530 | 250 | 255 | 125 | 4-18 |
| 65 | 21/2 | 46 | 115 | 370 | 270 | 280 | 625 | 250 | 170 | 530 | 250 | 255 | 145 | 8-18 | |
| 80 | 3 | 49 | 120 | 380 | 270 | 280 | 645 | 250 | 170 | 565 | 250 | 255 | 160 | 8-18 | |
| 100 | 4 | 56 | 138 | 420 | 270 | 280 | 675 | 250 | 170 | 600 | 250 | 255 | 190 | 8-22 | |
| 125 | 5 | 64 | 164 | 460 | 380 | 420 | 715 | 450 | 220 | 640 | 250 | 255 | 220 | 8-26 | |
| 150 | 6 | 70 | 175 | 555 | 380 | 420 | 800 | 450 | 220 | 705 | 300 | 315 | 250 | 8-26 | |
| 200 | 8 | 71 | 208 | 605 | 450 | 470 | 850 | 450 | 220 | 775 | 300 | 315 | 320 | 12-30 | |
| 250 | 10 | 76 | 243 | 680 | 450 | 470 | 925 | 450 | 280 | 945 | 300 | 315 | 385 | 12-33 | |
| 300 | 12 | 83 | 283 | 825 | 450 | 470 | 1035 | 650 | 280 | 1070 | 300 | 315 | 450 | 16-33 | |
| 350 | 14 | 92 | 310 | 900 | 480 | 490 | 1070 | 650 | 280 | 1140 | 300 | 315 | 510 | 16-36 | |
| 400 | 16 | 102 | 340 | 980 | 480 | 490 | 1190 | 650 | 280 | 1210 | 300 | 315 | 585 | 16-39 | |
| 450 | 18 | 114 | 380 | 1030 | 640 | 660 | 1335 | 575 | 714 | 610 | 20-39 | ||||
| 500 | 20 | 127 | 410 | 1105 | 640 | 660 | 1415 | 575 | 714 | 670 | 20-42 | ||||
DT673H-6C-DN150,DT673H-6C-DN200,DT673H-6C-DN250,DT673H-6C-DN300,DT673H-6C-DN350,
DT673H-6C-DN400,DT673H-6C-DN450,DT673H-6C-DN500,DT673H-6C-DN600,DT673H-6C-DN700,
DT673H-6C-DN800,DT673H-6C-DN900,CCLAIR,DT673H-6C-DN1000,DT673H-6C-DN1200,
DT673H-6P-DN50,DT673H-6P-DN65,DT673H-6P-DN80,DT673H-6P-DN100,DT673H-6P-DN125,
DT673H-6P-DN150,DT673H-6P-DN200,DT673H-6P-DN250,DT673H-6P-DN300,DT673H-6P-DN350,
DT673H-6P-DN400,DT673H-6P-DN450,DT673H-6P-DN500,DT673H-6P-DN600,DT673H-6P-DN700,
DT673H-6P-DN800,DT673H-6P-DN900,DT673H-6P-DN1000,DT673H-6P-DN1200,
DT673H-6V-DN50,DT673H-6V-DN65,DT673H-6V-DN80,DT673H-6V-DN100,DT673H-6V-DN125,
DT673H-6V-DN150,DT673H-6V-DN200,DT673H-6V-DN250,DT673H-6V-DN300,DT673H-6V-DN350,
DT673H-6V-DN400,DT673H-6V-DN450,DT673H-6V-DN500,DT673H-6V-DN600,DT673H-6V-DN700,
DT673H-6V-DN800,DT673H-6V-DN900,DT673H-6V-DN1000,DT673H-6V-DN1200,
DT673H-10C-DN50,DT673H-10C-DN65,DT673H-10C-DN80,DT673H-10C-DN100,DT673H-10C-DN125,
DT673H-10C-DN150,DT673H-10C-DN200,DT673H-10C-DN250,DT673H-10C-DN300,DT673H-10C-DN350,
DT673H-10C-DN400,DT673H-10C-DN450,DT673H-10C-DN500,DT673H-10C-DN600,DT673H-10C-DN700,
DT673H-10C-DN800,DT673H-10C-DN900,DT673H-10C-DN1000,DT673H-10C-DN1200,
DT673H-10P-DN50,DT673H-10P-DN65,DT673H-10P-DN80,DT673H-10P-DN100,DT673H-10P-DN125,
DT673H-10P-DN150,DT673H-10P-DN200,DT673H-10P-DN250,DT673H-10P-DN300,DT673H-10P-DN350,
DT673H-10P-DN400,DT673H-10P-DN450,DT673H-10P-DN500,DT673H-10P-DN600,DT673H-10P-DN700,
DT673H-10P-DN800,DT673H-10P-DN900,CCLAIR,DT673H-10P-DN1000,DT673H-10P-DN1200,
DT673H-10V-DN50,DT673H-10V-DN65,DT673H-10V-DN80,DT673H-10V-DN100,DT673H-10V-DN125,
DT673H-10V-DN150,DT673H-10V-DN200,DT673H-10V-DN250,DT673H-10V-DN300,DT673H-10V-DN350,
DT673H-10V-DN400,DT673H-10V-DN450,DT673H-10V-DN500,DT673H-10V-DN600,DT673H-10V-DN700,
DT673H-10V-DN800,DT673H-10V-DN900,DT673H-10V-DN1000,DT673H-10V-DN1200,
DT673H-16C-DN50,DT673H-16C-DN65,DT673H-16C-DN80,DT673H-16C-DN100,DT673H-16C-DN125,
DT673H-16C-DN150,DT673H-16C-DN200,DT673H-16C-DN250,DT673H-16C-DN300,DT673H-16C-DN350,
DT673H-16C-DN400,DT673H-16C-DN450,DT673H-16C-DN500,DT673H-16C-DN600,DT673H-16C-DN700,
DT673H-16C-DN800,DT673H-16C-DN900,DT673H-16C-DN1000,DT673H-16C-DN1200,
DT673H-16P-DN50,DT673H-16P-DN65,DT673H-16P-DN80,DT673H-16P-DN100,DT673H-16P-DN125,
DT673H-16P-DN150,DT673H-16P-DN200,DT673H-16P-DN250,DT673H-16P-DN300,DT673H-16P-DN350,
DT673H-16P-DN400,DT673H-16P-DN450,DT673H-16P-DN500,DT673H-16P-DN600,DT673H-16P-DN700,
DT673H-16P-DN800,DT673H-16P-DN900,DT673H-16P-DN1000,DT673H-16P-DN1200,
DT673H-16V-DN50,DT673H-16V-DN65,DT673H-16V-DN80,DT673H-16V-DN100,DT673H-16V-DN125,
DT673H-16V-DN150,DT673H-16V-DN200,DT673H-16V-DN250,DT673H-16V-DN300,DT673H-16V-DN350,
DT673H-16V-DN400,DT673H-16V-DN450,DT673H-16V-DN500,DT673H-16V-DN600,DT673H-16V-DN700,
DT673H-16V-DN800,DT673H-16V-DN900,DT673H-16V-DN1000,DT673H-16V-DN1200,
DT673H-25C-DN50,DT673H-25C-DN65,DT673H-25C-DN80,DT673H-25C-DN100,DT673H-25C-DN125,
DT673H-25C-DN150,DT673H-25C-DN200,DT673H-25C-DN250,DT673H-25C-DN300,DT673H-25C-DN350,
DT673H-25C-DN400,DT673H-25C-DN450,DT673H-25C-DN500,DT673H-25C-DN600,DT673H-25C-DN700,
DT673H-25C-DN800,DT673H-25C-DN900,CCLAIR,DT673H-25C-DN1000,DT673H-25C-DN1200,
DT673H-25P-DN50,DT673H-25P-DN65,DT673H-25P-DN80,DT673H-25P-DN100,DT673H-25P-DN125,
DT673H-25P-DN150,DT673H-25P-DN200,DT673H-25P-DN250,DT673H-25P-DN300,DT673H-25P-DN350,
DT673H-25P-DN400,DT673H-25P-DN450,DT673H-25P-DN500,DT673H-25P-DN600,DT673H-25P-DN700,
DT673H-25P-DN800,DT673H-25P-DN900,DT673H-25P-DN1000,DT673H-25P-DN1200,
DT673H-25V-DN50,DT673H-25V-DN65,DT673H-25V-DN80,DT673H-25V-DN100,DT673H-25V-DN125,
DT673H-25V-DN150,DT673H-25V-DN200,DT673H-25V-DN250,DT673H-25V-DN300,DT673H-25V-DN350,
DT673H-25V-DN400,DT673H-25V-DN450,DT673H-25V-DN500,DT673H-25V-DN600,DT673H-25V-DN700,
DT673H-25V-DN800,DT673H-25V-DN900,DT673H-25V-DN1000,DT673H-25V-DN1200,
DT973H-6C-DN50,DT973H-6C-DN65,DT973H-6C-DN80,DT973H-6C-DN100,DT973H-6C-DN125,
DT973H-6C-DN150,DT973H-6C-DN200,DT973H-6C-DN250,DT973H-6C-DN300,DT973H-6C-DN350,
DT973H-6C-DN400,DT973H-6C-DN450,DT973H-6C-DN500,DT973H-6C-DN600,DT973H-6C-DN700,
DT973H-6C-DN800,DT973H-6C-DN900,DT973H-6C-DN1000,DT973H-6C-DN1200,
DT973H-6P-DN50,DT973H-6P-DN65,DT973H-6P-DN80,DT973H-6P-DN100,DT973H-6P-DN125,
DT973H-6P-DN150,DT973H-6P-DN200,DT973H-6P-DN250,DT973H-6P-DN300,DT973H-6P-DN350,
DT973H-6P-DN400,DT973H-6P-DN450,DT973H-6P-DN500,DT973H-6P-DN600,DT973H-6P-DN700,
DT973H-6P-DN800,DT973H-6P-DN900,DT973H-6P-DN1000,DT973H-6P-DN1200,
DT973H-6V-DN50,DT973H-6V-DN65,DT973H-6V-DN80,DT973H-6V-DN100,DT973H-6V-DN125,
DT973H-6V-DN150,DT973H-6V-DN200,DT973H-6V-DN250,DT973H-6V-DN300,DT973H-6V-DN350,
DT973H-6V-DN400,DT973H-6V-DN450,DT973H-6V-DN500,DT973H-6V-DN600,DT973H-6V-DN700,
DT973H-6V-DN800,DT973H-6V-DN900,CCLAIR,DT973H-6V-DN1000,DT973H-6V-DN1200,
DT973H-10C-DN50,DT973H-10C-DN65,DT973H-10C-DN80,DT973H-10C-DN100,DT973H-10C-DN125,
DT973H-10C-DN150,DT973H-10C-DN200,DT973H-10C-DN250,DT973H-10C-DN300,DT973H-10C-DN350,
DT973H-10C-DN400,DT973H-10C-DN450,DT973H-10C-DN500,DT973H-10C-DN600,DT973H-10C-DN700,
DT973H-10C-DN800,DT973H-10C-DN900,DT973H-10C-DN1000,DT973H-10C-DN1200,
DT973H-10P-DN50,DT973H-10P-DN65,DT973H-10P-DN80,DT973H-10P-DN100,DT973H-10P-DN125,
DT973H-10P-DN150,DT973H-10P-DN200,DT973H-10P-DN250,DT973H-10P-DN300,DT973H-10P-DN350,
DT973H-10P-DN400,DT973H-10P-DN450,DT973H-10P-DN500,DT973H-10P-DN600,DT973H-10P-DN700,
DT973H-10P-DN800,DT973H-10P-DN900,DT973H-10P-DN1000,DT973H-10P-DN1200,
DT973H-10V-DN50,DT973H-10V-DN65,DT973H-10V-DN80,DT973H-10V-DN100,DT973H-10V-DN125,
DT973H-10V-DN150,DT973H-10V-DN200,DT973H-10V-DN250,DT973H-10V-DN300,DT973H-10V-DN350,
DT973H-10V-DN400,DT973H-10V-DN450,DT973H-10V-DN500,DT973H-10V-DN600,DT973H-10V-DN700,
DT973H-10V-DN800,DT973H-10V-DN900,DT973H-10V-DN1000,DT973H-10V-DN1200,
DT973H-16C-DN50,DT973H-16C-DN65,DT973H-16C-DN80,DT973H-16C-DN100,DT973H-16C-DN125,
DT973H-16C-DN150,DT973H-16C-DN200,DT973H-16C-DN250,DT973H-16C-DN300,DT973H-16C-DN350,
DT973H-16C-DN400,DT973H-16C-DN450,DT973H-16C-DN500,DT973H-16C-DN600,DT973H-16C-DN700,
DT973H-16C-DN800,DT973H-16C-DN900,DT973H-16C-DN1000,DT973H-16C-DN1200,
DT973H-16P-DN50,DT973H-16P-DN65,DT973H-16P-DN80,DT973H-16P-DN100,DT973H-16P-DN125,
DT973H-16P-DN150,DT973H-16P-DN200,DT973H-16P-DN250,DT973H-16P-DN300,DT973H-16P-DN350,
DT973H-16P-DN400,DT973H-16P-DN450,DT973H-16P-DN500,DT973H-16P-DN600,DT973H-16P-DN700,
DT973H-16P-DN800,DT973H-16P-DN900,DT973H-16P-DN1000,DT973H-16P-DN1200,
DT973H-16V-DN50,DT973H-16V-DN65,DT973H-16V-DN80,DT973H-16V-DN100,DT973H-16V-DN125,
DT973H-16V-DN150,DT973H-16V-DN200,DT973H-16V-DN250,DT973H-16V-DN300,DT973H-16V-DN350,
DT973H-16V-DN400,DT973H-16V-DN450,DT973H-16V-DN500,DT973H-16V-DN600,DT973H-16V-DN700,
DT973H-16V-DN800,DT973H-16V-DN900,CCLAIR,DT973H-16V-DN1000,DT973H-16V-DN1200,
DT973H-25C-DN50,DT973H-25C-DN65,DT973H-25C-DN80,DT973H-25C-DN100,DT973H-25C-DN125,
DT973H-25C-DN150,DT973H-25C-DN200,DT973H-25C-DN250,DT973H-25C-DN300,DT973H-25C-DN350,
DT973H-25C-DN400,DT973H-25C-DN450,DT973H-25C-DN500,DT973H-25C-DN600,DT973H-25C-DN700,
DT973H-25C-DN800,DT973H-25C-DN900,DT973H-25C-DN1000,DT973H-25C-DN1200,
DT973H-25P-DN50,DT973H-25P-DN65,DT973H-25P-DN80,DT973H-25P-DN100,DT973H-25P-DN125,
DT973H-25P-DN150,DT973H-25P-DN200,DT973H-25P-DN250,DT973H-25P-DN300,DT973H-25P-DN350,
DT973H-25P-DN400,DT973H-25P-DN450,DT973H-25P-DN500,DT973H-25P-DN600,DT973H-25P-DN700,
DT973H-25P-DN800,DT973H-25P-DN900,DT973H-25P-DN1000,DT973H-25P-DN1200,
DT973H-25V-DN50,DT973H-25V-DN65,DT973H-25V-DN80,DT973H-25V-DN100,DT973H-25V-DN125,
DT973H-25V-DN150,DT973H-25V-DN200,DT973H-25V-DN250,DT973H-25V-DN300,DT973H-25V-DN350,
DT973H-25V-DN400,DT973H-25V-DN450,DT973H-25V-DN500,DT973H-25V-DN600,DT973H-25V-DN700,
DT973H-25V-DN800,DT973H-25V-DN900,DT973H-25V-DN1000,DT973H-25V-DN1200,
DT373H-6C-DN50,DT373H-6C-DN65,DT373H-6C-DN80,DT373H-6C-DN100,DT373H-6C-DN125,
DT373H-6C-DN150,DT373H-6C-DN200,DT373H-6C-DN250,DT373H-6C-DN300,DT373H-6C-DN350,
DT373H-6C-DN400,DT373H-6C-DN450,DT373H-6C-DN500,DT373H-6C-DN600,DT373H-6C-DN700,
DT373H-6C-DN800,DT373H-6C-DN900,DT373H-6C-DN1000,DT373H-6C-DN1200,
DT373H-6P-DN50,DT373H-6P-DN65,DT373H-6P-DN80,DT373H-6P-DN100,DT373H-6P-DN125,
DT373H-6P-DN150,DT373H-6P-DN200,DT373H-6P-DN250,DT373H-6P-DN300,DT373H-6P-DN350,
DT373H-6P-DN400,DT373H-6P-DN450,DT373H-6P-DN500,DT373H-6P-DN600,DT373H-6P-DN700,
DT373H-6P-DN800,DT373H-6P-DN900,CCLAIR,DT373H-6P-DN1000,DT373H-6P-DN1200,
DT373H-6V-DN50,DT373H-6V-DN65,DT373H-6V-DN80,DT373H-6V-DN100,DT373H-6V-DN125,
DT373H-6V-DN150,DT373H-6V-DN200,DT373H-6V-DN250,DT373H-6V-DN300,DT373H-6V-DN350,
DT373H-6V-DN400,DT373H-6V-DN450,DT373H-6V-DN500,DT373H-6V-DN600,DT373H-6V-DN700,
DT373H-6V-DN800,DT373H-6V-DN900,DT373H-6V-DN1000,DT373H-6V-DN1200,
DT373H-10C-DN50,DT373H-10C-DN65,DT373H-10C-DN80,DT373H-10C-DN100,DT373H-10C-DN125,
DT373H-10C-DN150,DT373H-10C-DN200,DT373H-10C-DN250,DT373H-10C-DN300,DT373H-10C-DN350,
DT373H-10C-DN400,DT373H-10C-DN450,DT373H-10C-DN500,DT373H-10C-DN600,DT373H-10C-DN700,
DT373H-10C-DN800,DT373H-10C-DN900,DT373H-10C-DN1000,DT373H-10C-DN1200,
DT373H-10P-DN50,DT373H-10P-DN65,DT373H-10P-DN80,DT373H-10P-DN100,DT373H-10P-DN125,
DT373H-10P-DN150,DT373H-10P-DN200,DT373H-10P-DN250,DT373H-10P-DN300,DT373H-10P-DN350,
DT373H-10P-DN400,DT373H-10P-DN450,DT373H-10P-DN500,DT373H-10P-DN600,DT373H-10P-DN700,
DT373H-10P-DN800,DT373H-10P-DN900,DT373H-10P-DN1000,DT373H-10P-DN1200,
DT373H-10V-DN50,DT373H-10V-DN65,DT373H-10V-DN80,DT373H-10V-DN100,DT373H-10V-DN125,
DT373H-10V-DN150,DT373H-10V-DN200,DT373H-10V-DN250,DT373H-10V-DN300,DT373H-10V-DN350,
DT373H-10V-DN400,DT373H-10V-DN450,DT373H-10V-DN500,DT373H-10V-DN600,DT373H-10V-DN700,
DT373H-10V-DN800,DT373H-10V-DN900,CCLAIR,DT373H-10V-DN1000,DT373H-10V-DN1200,
DT373H-16C-DN50,DT373H-16C-DN65,DT373H-16C-DN80,DT373H-16C-DN100,DT373H-16C-DN125,
DT373H-16C-DN150,DT373H-16C-DN200,DT373H-16C-DN250,DT373H-16C-DN300,DT373H-16C-DN350,
DT373H-16C-DN400,DT373H-16C-DN450,DT373H-16C-DN500,DT373H-16C-DN600,DT373H-16C-DN700,
DT373H-16C-DN800,DT373H-16C-DN900,DT373H-16C-DN1000,DT373H-16C-DN1200,
DT373H-16P-DN50,DT373H-16P-DN65,DT373H-16P-DN80,DT373H-16P-DN100,DT373H-16P-DN125,
DT373H-16P-DN150,DT373H-16P-DN200,DT373H-16P-DN250,DT373H-16P-DN300,DT373H-16P-DN350,
DT373H-16P-DN400,DT373H-16P-DN450,DT373H-16P-DN500,DT373H-16P-DN600,DT373H-16P-DN700,
DT373H-16P-DN800,DT373H-16P-DN900,DT373H-16P-DN1000,DT373H-16P-DN1200,
DT373H-16V-DN50,DT373H-16V-DN65,DT373H-16V-DN80,DT373H-16V-DN100,DT373H-16V-DN125,
DT373H-16V-DN150,DT373H-16V-DN200,DT373H-16V-DN250,DT373H-16V-DN300,DT373H-16V-DN350,
DT373H-16V-DN400,DT373H-16V-DN450,DT373H-16V-DN500,DT373H-16V-DN600,DT373H-16V-DN700,
DT373H-16V-DN800,DT373H-16V-DN900,DT373H-16V-DN1000,DT373H-16V-DN1200,
DT373H-25C-DN50,DT373H-25C-DN65,DT373H-25C-DN80,DT373H-25C-DN100,DT373H-25C-DN125,
DT373H-25C-DN150,DT373H-25C-DN200,DT373H-25C-DN250,DT373H-25C-DN300,DT373H-25C-DN350,
DT373H-25C-DN400,DT373H-25C-DN450,DT373H-25C-DN500,DT373H-25C-DN600,DT373H-25C-DN700,
DT373H-25C-DN800,DT373H-25C-DN900,DT373H-25C-DN1000,DT373H-25C-DN1200,
DT373H-25P-DN50,DT373H-25P-DN65,DT373H-25P-DN80,DT373H-25P-DN100,DT373H-25P-DN125,
DT373H-25P-DN150,DT373H-25P-DN200,DT373H-25P-DN250,DT373H-25P-DN300,DT373H-25P-DN350,
DT373H-25P-DN400,DT373H-25P-DN450,DT373H-25P-DN500,DT373H-25P-DN600,DT373H-25P-DN700,
DT373H-25P-DN800,DT373H-25P-DN900,CCLAIR,DT373H-25P-DN1000,DT373H-25P-DN1200,
DT373H-25V-DN50,DT373H-25V-DN65,DT373H-25V-DN80,DT373H-25V-DN100,DT373H-25V-DN125,
DT373H-25V-DN150,DT373H-25V-DN200,DT373H-25V-DN250,DT373H-25V-DN300,DT373H-25V-DN350,
DT373H-25V-DN400,DT373H-25V-DN450,DT373H-25V-DN500,DT373H-25V-DN600,DT373H-25V-DN700,
DT373H-25V-DN800,DT373H-25V-DN900,DT373H-25V-DN1000,DT373H-25V-DN1200,
