The Pneumatic Zero-Friction Expanding Ball Valve is a high-performance safety control valve, representing one of the few available solutions on the market specifically designed for large-bore, hazardous-service emergency shutdown applications utilizing spherical forced-sealing technology. Through disruptive structural optimization and an innovative opening/closing mode, the valve employs a combined linear + quarter-turn (R-type orbital path) actuation mechanism to achieve rapid stroking and emergency shut-off functionality, making it suitable for a wide range of high-risk pipeline conditions.
Unique Elastic Ball Structure Design：This valve features an innovative elastic ball guide structure. The ball is equipped with a leaf-spring assembly at the bottom and a wedge-shaped notch at the top, enabling controllable radial expansion and retraction (self-adjusting) capability. Working in coordination with a four-linkage mechanism, support blocks, and the lower stem assembly, the ball performs precise expanding and contracting actions with excellent structural stability and motion accuracy.
Innovative Forced-Sealing Principle：The valve revolutionizes conventional sealing methods through the synchronized interaction of the stem, four-linkage mechanism, and support blocks. At the exact moment of closure, the ball is forcibly expanded radially, instantly pressing it against the seat to achieve a positive, forced seal. This design delivers superior sealing precision with enhanced adaptability across diverse service conditions.
Full-Stroke Zero-Friction Operation Advantage：Thanks to its proprietary structural design, the valve ensures that the ball and seat remain completely contact-free throughout the entire opening, closing, and rotating stroke. This achieves true zero-friction operation, fundamentally eliminating common issues such as sealing-face wear, sticking, and leakage found in conventional valves. As a result, service life is significantly extended, ensuring long-term, reliable equipment performance.
Pneumatic Shut‑off Ball Valve are 0‑90° rotary valves. They utilize pneumatic actuators to convert compressed air into rotary motion, delivering fast and reliable valve opening and closing for industrial process control.
According to specific application requirements, pneumatic ball valves can be equipped with solenoid valves, limit switches, position feedback devices, air filter‑regulators, valve positioners and other pneumatic instrument accessories to realize automatic valve control and remote monitoring functions.
Many factors shall be considered when selecting a pneumatic ball valve, including valve size, pressure rating, operating temperature, process medium, flow rate, body material, seat material, actuator type and control mode.
If you are looking for a qualified manufacturer or supplier of pneumatic ball valves, please contact our technical team and provide your operating conditions. Our valve engineers will recommend suitable pneumatic ball valves, actuators and control accessories based on your specific application requirements. （Unit: mm）
| DN | NPS | Type/Class | Part No | L1 | D | K | Th | n-L | C | d1 | f | P | E | F | d | w | X | y | Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | LSQ647-150LB | LSQ647150XLX2 | 178 | 150 | 120.7 | M16 | 46130 | 17.5 | 91.9 | 1.5 | 82.55 | 6.35 | 8.74 | |||||
| 65 | 2.5 | LSQ647-150LB | LSQ647150XLX2.5 | 190 | 180 | 139.7 | M16 | 4-18 | 20.7 | 104.6 | 1.5 | 101.6 | 6.35 | 8.74 | |||||
| 80 | 3 | LSQ647-150LB | LSQ647150XLX3 | 203 | 190 | 152.4 | M16 | 4-18 | 22.3 | 127 | 1.5 | 114.3 | 6.35 | 8.74 | |||||
| 100 | 4 | LSQ647-150LB | LSQ647150XLX4 | 229 | 230 | 190.5 | M16 | 8-18 | 22.3 | 157.2 | 1.5 | 149.23 | 6.35 | 8.74 | |||||
| 150 | 6 | LSQ647-150LB | LSQ647150XLX6 | 394 | 280 | 241.3 | M20 | 8-22 | 23.9 | 215.9 | 1.5 | 193.68 | 6.35 | 8.74 | |||||
| 200 | 8 | LSQ647-150LB | LSQ647150XLX8 | 457 | 345 | 298.58 | M20 | 8-22 | 27.0 | 269.7 | 1.5 | 247.65 | 6.35 | 8.74 | |||||
| 250 | 10 | LSQ647-150LB | LSQ647150XLX10 | 533 | 405 | 362.0 | M24 | 12-26 | 28.6 | 323.8 | 1.5 | 304.8 | 6.35 | 8.74 | |||||
| 300 | 12 | LSQ647-150LB | LSQ647150XLX12 | 610 | 485 | 431.8 | M24 | 12-26 | 30.2 | 381 | 1.5 | 381 | 6.35 | 8.74 | |||||
| 350 | 14 | LSQ647-150LB | LSQ647150XLX14 | 686 | 535 | 476.2 | M27 | 12-30 | 33.4 | 412.8 | 1.5 | 396.88 | 6.35 | 8.74 | |||||
| 400 | 16 | LSQ647-150LB | LSQ647150XLX16 | 762 | 595 | 539.8 | M27 | 16-30 | 35.0 | 469.9 | 1.5 | 454.03 | 6.35 | 8.74 | |||||
| 450 | 18 | LSQ647-150LB | LSQ647150XLX18 | 864 | 635 | 577.9 | M30 | 16-33 | 38.1 | 533.4 | 1.5 | 517.53 | 6.35 | 8.74 | |||||
| 500 | 20 | LSQ647-150LB | LSQ647150XLX20 | 914 | 700 | 635.0 | M30 | 20-33 | 41.3 | 584.2 | 1.5 | 558.8 | 6.35 | 8.74 | |||||
| 600 | 24 | LSQ647-150LB | LSQ647150XLX24 | 1067 | 815 | 749.3 | M33 | 20-36 | 46.1 | 692.2 | 1.5 | 673.1 | 6.35 | 8.74 | |||||
| 650 | 26 | LSQ647-150LB | LSQ647150XLX26 | 1143 | 870 | 806.4 | M33 | 24-36 | 66.7 | ||||||||||
| 700 | 28 | LSQ647-150LB | LSQ647150XLX28 | 1245 | 925 | 863.6 | M33 | 28-36 | 69.9 | ||||||||||
| 750 | 30 | LSQ647-150LB | LSQ647150XLX30 | 1295 | 985 | 914.4 | M33 | 28-36 | 73.1 | ||||||||||
| 800 | 32 | LSQ647-150LB | LSQ647150XLX32 | 1372 | 1060 | 977.9 | M39 | 28-42 | 79.4 | ||||||||||
| 850 | 34 | LSQ647-150LB | LSQ647150XLX34 | 1473 | 1110 | 1028.7 | M39 | 32-42 | 81.0 | ||||||||||
| 900 | 36 | LSQ647-150LB | LSQ647150XLX36 | 1524 | 1170 | 1085.8 | M39 | 32-42 | 88.9 | ||||||||||
| 1000 | 40 | LSQ647-150LB | LSQ647150XLX40 | 1753 | 1290 | 1200.2 | M39 | 36-42 | 88.9 | ||||||||||
| 1050 | 42 | LSQ647-150LB | LSQ647150XLX42 | 1855 | 1345 | 1257.3 | M39 | 36-42 | 95.3 | ||||||||||
| 1200 | 48 | LSQ647-150LB | LSQ647150XLX48 | 2134 | 1510 | 1422.4 | M39 | 44-42 | 106.4 | ||||||||||
| 50 | 2 | LSQ647-300LB | LSQ647300XLX2 | 216 | 165 | 127.0 | M16 | 8-18 | 20.7 | 91.9 | 1.5 | 82.55 | 7.92 | 11.91 | 103 | 73 | 92.1 | 93.7 | 71.4 |
| 65 | 2.5 | LSQ647-300LB | LSQ647300XLX2.5 | 241 | 190 | 149.2 | M20 | 8-22 | 23.9 | 104.6 | 1.5 | 101.6 | 7.92 | 11.91 | 116 | 85.7 | 104.8 | 106.4 | 84.1 |
| 80 | 3 | LSQ647-300LB | LSQ647300XLX3 | 282 | 210 | 168.3 | M20 | 8-22 | 27.0 | 127 | 1.5 | 123.83 | 7.92 | 11.91 | 138 | 108 | 127 | 128.6 | 106.4 |
| 100 | 4 | LSQ647-300LB | LSQ647300XLX4 | 305 | 255 | 200.0 | M20 | 8-22 | 30.2 | 157.2 | 1.5 | 149.23 | 7.92 | 11.91 | 168 | 131.8 | 157.2 | 158.8 | 130.2 |
| 150 | 6 | LSQ647-300LB | LSQ647300XLX6 | 457 | 320 | 269.9 | M20 | 12-22 | 35.0 | 215.9 | 1.5 | 211.12 | 7.92 | 11.91 | 227 | 190.5 | 215.9 | 217.5 | 188.9 |
| 200 | 8 | LSQ647-300LB | LSQ647300XLX8 | 502 | 380 | 330.2 | M24 | 12-26 | 39.7 | 269.7 | 1.5 | 269.88 | 7.92 | 11.91 | 281 | 238.1 | 269.9 | 271.5 | 236.5 |
| 250 | 10 | LSQ647-300LB | LSQ647300XLX10 | 568 | 445 | 387.4 | M27 | 16-30 | 46.1 | 323.8 | 1.5 | 323.85 | 7.92 | 11.91 | 335 | 285.8 | 323.8 | 325.4 | 284.2 |
| 300 | 12 | LSQ647-300LB | LSQ647300XLX12 | 648 | 520 | 450.8 | M30 | 16-33 | 49.3 | 381 | 1.5 | 381 | 7.92 | 11.91 | 392 | 342.9 | 381 | 382.6 | 341.3 |
| 350 | 14 | LSQ647-300LB | LSQ647300XLX14 | 762 | 585 | 514.4 | M30 | 20-33 | 52.4 | 412.8 | 1.5 | 419.1 | 7.92 | 11.91 | 424 | 374.6 | 412.8 | 414.3 | 373.1 |
| 400 | 16 | LSQ647-300LB | LSQ647300XLX16 | 838 | 650 | 571.5 | M33 | 20-36 | 55.6 | 469.9 | 1.5 | 469.9 | 7.92 | 11.91 | 481 | 425.4 | 469.9 | 471.5 | 423..9 |
| 450 | 18 | LSQ647-300LB | LSQ647300XLX18 | 914 | 710 | 628.6 | M33 | 24-36 | 58.8 | 533.4 | 1.5 | 533.4 | 7.92 | 11.91 | 544 | 489 | 533.4 | 535 | 487.4 |
| 500 | 20 | LSQ647-300LB | LSQ647300XLX20 | 991 | 775 | 685.8 | M33 | 24-36 | 62.0 | 584.2 | 1.5 | 584.2 | 9.53 | 13.49 | 595 | 533.4 | 584.2 | 585.8 | 531.8 |
| 600 | 24 | LSQ647-300LB | LSQ647300XLX24 | 1143 | 915 | 812.8 | M39×3 | 24-42 | 68.3 | 692.2 | 1.5 | 692.15 | 11.13 | 16.66 | 703 | 641.4 | 692.2 | 693.7 | 639.8 |
| 650 | 26 | LSQ647-300LB | LSQ647300XLX26 | 1245 | 970 | 876.3 | M42 | 28-45 | 77.8 | ||||||||||
| 700 | 28 | LSQ647-300LB | LSQ647300XLX28 | 1346 | 1035 | 939.8 | M42 | 28-45 | 84.2 | ||||||||||
| 750 | 30 | LSQ647-300LB | LSQ647300XLX30 | 1397 | 1090 | 997.0 | M45 | 28-48 | 90.5 | ||||||||||
| 800 | 32 | LSQ647-300LB | LSQ647300XLX32 | 1524 | 1150 | 1054.1 | M48 | 28-51 | 96.9 | ||||||||||
| 850 | 34 | LSQ647-300LB | LSQ647300XLX34 | 1626 | 1205 | 1104.9 | M48 | 28-51 | 100.1 | ||||||||||
| 900 | 36 | LSQ647-300LB | LSQ647300XLX36 | 1727 | 1270 | 1168.4 | M52 | 32-55 | 103.2 | ||||||||||
| 1000 | 40 | LSQ647-300LB | LSQ647300XLX40 | 1956 | 1240 | 1155.7 | M42 | 32-45 | 112.8 | ||||||||||
| 1050 | 42 | LSQ647-300LB | LSQ647300XLX42 | 2083 | 1290 | 1206.5 | M42 | 32-45 | 117.5 | ||||||||||
| 1200 | 48 | LSQ647-300LB | LSQ647300XLX48 | 2170 | 1465 | 1371.6 | M48 | 32-51 | 131.8 | ||||||||||
| 50 | 2 | LSQ647-600LB | LSQ647600XLX2 | 292 | 165 | 127.0 | M16 | 8-18 | 25.4 | 91.9 | 6.4 | 82.55 | 7.92 | 11.91 | 103 | 73 | 92.1 | 93.7 | 71.4 |
| 65 | 2.5 | LSQ647-600LB | LSQ647600XLX2.5 | 330 | 190 | 169.2 | M20 | 8-22 | 28.6 | 104.6 | 6.4 | 101.6 | 7.92 | 11.91 | 116 | 85.7 | 104.8 | 106.4 | 84.1 |
| 80 | 3 | LSQ647-600LB | LSQ647600XLX3 | 356 | 210 | 168.3 | M20 | 8-22 | 31.8 | 127 | 6.4 | 123.83 | 7.92 | 11.91 | 138 | 108 | 127 | 128.6 | 106.4 |
| 100 | 4 | LSQ647-600LB | LSQ647600XLX4 | 432 | 275 | 215.9 | M24 | 8-26 | 38.1 | 157.2 | 6.4 | 149.23 | 7.92 | 11.91 | 168 | 131.8 | 157.2 | 158.8 | 130.2 |
| 150 | 6 | LSQ647-600LB | LSQ647600XLX6 | 559 | 355 | 292 | M27 | 12-30 | 48 | 215.9 | 6.4 | 211.12 | 7.92 | 11.91 | 227 | 190.5 | 215.9 | 217.5 | 188.9 |
| 200 | 8 | LSQ647-600LB | LSQ647600XLX8 | 660 | 420 | 349 | M30 | 12-33 | 56 | 269.7 | 6.4 | 269.88 | 7.92 | 11.91 | 281 | 238.1 | 269.9 | 271.5 | 236.5 |
| 250 | 10 | LSQ647-600LB | LSQ647600XLX10 | 787 | 510 | 431 | M33 | 16-36 | 64 | 323.8 | 6.4 | 323.85 | 7.92 | 11.91 | 335 | 285.8 | 323.8 | 325.4 | 284.2 |
| 300 | 12 | LSQ647-600LB | LSQ647600XLX12 | 838 | 560 | 489 | M33 | 20-36 | 67 | 381 | 6.4 | 381 | 7.92 | 11.91 | 392 | 342.9 | 381 | 382.6 | 341.3 |
| 350 | 14 | LSQ647-600LB | LSQ647600XLX14 | 889 | 605 | 527 | M36X3 | 20-39 | 70 | 412.8 | 6.4 | 419.1 | 7.92 | 11.91 | 424 | 374.6 | 412.8 | 414.3 | 373.1 |
| 400 | 16 | LSQ647-600LB | LSQ647600XLX16 | 991 | 685 | 603 | M39X3 | 20-42 | 76 | 469.9 | 6.4 | 469.9 | 7.92 | 11.91 | 481 | 425.4 | 469.9 | 471.5 | 423..9 |
| 450 | 18 | LSQ647-600LB | LSQ647600XLX18 | 1092 | 745 | 654 | M42X3 | 20-45 | 83 | 533.4 | 6.4 | 533.4 | 7.92 | 11.91 | 544 | 489 | 533.4 | 535 | 487.4 |
| 500 | 20 | LSQ647-600LB | LSQ647600XLX20 | 1194 | 815 | 724 | M42X3 | 24-45 | 89 | 584.2 | 6.4 | 584.2 | 9.53 | 13.49 | 595 | 533.4 | 584.2 | 585.8 | 531.8 |
| 600 | 24 | LSQ647-600LB | LSQ647600XLX24 | 1397 | 940 | 838 | M48X3 | 24-51 | 102 | 692.2 | 6.4 | 692.15 | 11.13 | 16.66 | 703 | 641.4 | 692.2 | 693.7 | 639.8 |
| 650 | 26 | LSQ647-600LB | LSQ647600XLX26 | 1448 | 1015 | 914 | M48 | 28-51 | 108 | ||||||||||
| 700 | 28 | LSQ647-600LB | LSQ647600XLX28 | 1549 | 1075 | 965 | M52 | 28-55 | 111 | ||||||||||
| 750 | 30 | LSQ647-600LB | LSQ647600XLX30 | 1651 | 1130 | 1022 | M52 | 28-55 | 114 | ||||||||||
| 800 | 32 | LSQ647-600LB | LSQ647600XLX32 | 1778 | 1195 | 1080 | M56 | 28-60 | 118 | ||||||||||
| 850 | 34 | LSQ647-600LB | LSQ647600XLX34 | 1930 | 1245 | 1130 | M56 | 28-60 | 121 | ||||||||||
| 900 | 36 | LSQ647-600LB | LSQ647600XLX36 | 2083 | 1315 | 1194 | M64 | 28-68 | 124 | ||||||||||
| 50 | 2 | LSQ647-900LB | LSQ647900XLX2 | 368 | 215 | 165.1 | M24 | 8-26 | 38.1 | 91.9 | 6.4 | 95.25 | 7.92 | 11.91 | 103 | 73 | 92.1 | 93.7 | 71.4 |
| 65 | 2.5 | LSQ647-900LB | LSQ647900XLX2.5 | 419 | 245 | 190.5 | M27 | 8-30 | 41.3 | 104.6 | 6.4 | 107.95 | 7.92 | 11.91 | 116 | 85.7 | 104.8 | 106.4 | 84.1 |
| 80 | 3 | LSQ647-900LB | LSQ647900XLX3 | 381 | 240 | 190.5 | M24 | 8-26 | 38.1 | 127 | 6.4 | 123.83 | 7.92 | 11.91 | 138 | 108 | 127 | 128.6 | 106.4 |
| 100 | 4 | LSQ647-900LB | LSQ647900XLX4 | 457 | 290 | 235 | M30 | 8-33 | 44.5 | 157.2 | 6.4 | 149.23 | 7.92 | 11.91 | 168 | 131.8 | 157.2 | 158.8 | 130.2 |
| 150 | 6 | LSQ647-900LB | LSQ647900XLX6 | 610 | 380 | 317.5 | M30 | 12-33 | 55.6 | 215.9 | 6.4 | 211.12 | 7.92 | 11.91 | 227 | 190.5 | 215.9 | 217.5 | 188.9 |
| 200 | 8 | LSQ647-900LB | LSQ647900XLX8 | 737 | 470 | 393.7 | M36x3 | 12-39 | 63.5 | 269.7 | 6.4 | 269.88 | 7.92 | 11.91 | 281 | 238.1 | 269.9 | 271.5 | 236.5 |
| 250 | 10 | LSQ647-900LB | LSQ647900XLX10 | 838 | 545 | 469.9 | M36x3 | 16-39 | 69.9 | 323.8 | 6.4 | 323.85 | 7.92 | 11.91 | 335 | 285.8 | 323.8 | 325.4 | 284.2 |
| 300 | 12 | LSQ647-900LB | LSQ647900XLX12 | 965 | 610 | 533.4 | M36x3 | 20-39 | 79.4 | 381 | 6.4 | 381 | 7.92 | 11.91 | 392 | 342.9 | 381 | 382.6 | 341.3 |
| 350 | 14 | LSQ647-900LB | LSQ647900XLX14 | 1029 | 640 | 558.8 | M39x3 | 20-42 | 85.8 | 412.8 | 6.4 | 419.1 | 11.13 | 16.66 | 424 | 374.6 | 412.8 | 414.3 | 373.1 |
| 400 | 16 | LSQ647-900LB | LSQ647900XLX16 | 1130 | 705 | 616 | M42x3 | 20-45 | 88.9 | 469.9 | 6.4 | 469.9 | 11.13 | 16.66 | 481 | 425.4 | 469.9 | 471.5 | 423..9 |
| 450 | 18 | LSQ647-900LB | LSQ647900XLX18 | 1219 | 785 | 685.8 | M48x3 | 20-51 | 101.6 | 533.4 | 6.4 | 533.4 | 12.7 | 19.84 | 544 | 489 | 533.4 | 535 | 487.4 |
| 500 | 20 | LSQ647-900LB | LSQ647900XLX20 | 1321 | 855 | 749.3 | M52x3 | 20-55 | 108.0 | 584.2 | 6.4 | 584.2 | 12.7 | 19.84 | 595 | 533.4 | 584.2 | 585.8 | 531.8 |
| 600 | 24 | LSQ647-900LB | LSQ647900XLX24 | 1549 | 1040 | 901.7 | M64x3 | 20-68 | 139.7 | 692.2 | 6.4 | 692.15 | 15.88 | 26.97 | 703 | 641.4 | 692.2 | 693.7 | 639.8 |
| 650 | 26 | LSQ647-900LB | LSQ647900XLX26 | 1651 | 1085 | 952.5 | M70 | 20-74 | 139.7 | ||||||||||
| 700 | 28 | LSQ647-900LB | LSQ647900XLX28 | 1753 | 1170 | 1022.4 | M76 | 20-80 | 142.9 | ||||||||||
| 750 | 30 | LSQ647-900LB | LSQ647900XLX30 | 1880 | 1230 | 1085.9 | M76 | 20-80 | 149.3 | ||||||||||
| 800 | 32 | LSQ647-900LB | LSQ647900XLX32 | 2032 | 1315 | 1155.7 | M82 | 20-86 | 158.8 | ||||||||||
| 850 | 34 | LSQ647-900LB | LSQ647900XLX34 | 2159 | 1395 | 1225.6 | M90 | 20-94 | 165.1 | ||||||||||
| 900 | 36 | LSQ647-900LB | LSQ647900XLX36 | 2286 | 1460 | 1289.1 | M90 | 20-94 | 171.5 | ||||||||||
| 50 | 2 | LSQ647-1500LB | LSQ6471500XLX2 | 368 | 215 | 165.1 | M24 | 8-26 | 38.1 | 91.9 | 6.4 | 95.25 | 7.92 | 11.91 | 103 | 73 | 92.1 | 93.7 | 71.4 |
| 65 | 2.5 | LSQ647-1500LB | LSQ6471500XLX2.5 | 419 | 245 | 190.5 | M27 | 8-30 | 41.3 | 104.6 | 6.4 | 107.95 | 7.92 | 11.91 | 116 | 85.7 | 104.8 | 106.4 | 84.1 |
| 80 | 3 | LSQ647-1500LB | LSQ6471500XLX3 | 470 | 265 | 203.2 | M30 | 8-33 | 47.7 | 127 | 6.4 | 136.53 | 7.92 | 11.91 | 138 | 108 | 127 | 128.6 | 106.4 |
| 100 | 4 | LSQ647-1500LB | LSQ6471500XLX4 | 546 | 310 | 241.3 | M33 | 8-36 | 54.0 | 157.2 | 6.4 | 161.93 | 7.92 | 11.91 | 168 | 131.8 | 157.2 | 158.8 | 130.2 |
| 150 | 6 | LSQ647-1500LB | LSQ6471500XLX6 | 705 | 395 | 317.5 | M36x3 | 12-39 | 82.6 | 215.9 | 6.4 | 211.14 | 9.53 | 13.49 | 227 | 190.5 | 215.9 | 217.5 | 188.9 |
| 200 | 8 | LSQ647-1500LB | LSQ6471500XLX8 | 832 | 485 | 393.7 | M42x3 | 12-45 | 92.1 | 269.7 | 6.4 | 269.88 | 11.13 | 16.66 | 281 | 238.1 | 269.9 | 271.5 | 236.5 |
| 250 | 10 | LSQ647-1500LB | LSQ6471500XLX10 | 991 | 585 | 482.6 | M48x3 | 12-51 | 108.0 | 323.8 | 6.4 | 323.85 | 11.13 | 16.66 | 335 | 285.8 | 323.8 | 325.4 | 284.2 |
| 300 | 12 | LSQ647-1500LB | LSQ6471500XLX12 | 1130 | 675 | 571.5 | M52x3 | 16-55 | 123.9 | 381 | 6.4 | 381 | 14.27 | 23.01 | 392 | 342.9 | 381 | 382.6 | 341.3 |
| 350 | 14 | LSQ647-1500LB | LSQ6471500XLX14 | 1257 | 750 | 635.0 | M56x3 | 16-60 | 133.4 | 412.8 | 6.4 | 419.1 | 15.88 | 26.97 | 424 | 374.6 | 412.8 | 414.3 | 373.1 |
| 400 | 16 | LSQ647-1500LB | LSQ6471500XLX16 | 1384 | 825 | 704.8 | M64x3 | 16-68 | 146.1 | 469.9 | 6.4 | 469.9 | 17.48 | 30.18 | 481 | 425.4 | 469.9 | 471.5 | 423..9 |
| 450 | 18 | LSQ647-1500LB | LSQ6471500XLX18 | 1537 | 915 | 774.7 | M70x3 | 16-74 | 162.0 | 533.4 | 6.4 | 533.4 | 17.48 | 30.18 | 544 | 489 | 533.4 | 535 | 487.4 |
| 500 | 20 | LSQ647-1500LB | LSQ6471500XLX20 | 1664 | 985 | 831.8 | M76x3 | 16-80 | 177.8 | 584.2 | 6.4 | 584.2 | 17.48 | 33.32 | 595 | 533.4 | 584.2 | 585.8 | 531.8 |
| 600 | 24 | LSQ647-1500LB | LSQ6471500XLX24 | 1943 | 1170 | 990.6 | M90x3 | 16-94 | 203.2 | 692.2 | 6.4 | 692.15 | 20.62 | 36.53 | 703 | 641.4 | 692.2 | 693.7 | 639.8 |
| 50 | 2 | LSQ647-2500LB | LSQ6472500XLX2 | 451 | 235 | 171.4 | M27 | 8-30 | 50.9 | 91.9 | 6.4 | 101.6 | 7.92 | 11.91 | 103 | 73 | 92.1 | 93.7 | 71.4 |
| 65 | 2.5 | LSQ647-2500LB | LSQ6472500XLX2.5 | 508 | 265 | 196.8 | M30 | 8-33 | 57.2 | 104.6 | 6.4 | 111.13 | 9.52 | 13.49 | 116 | 85.7 | 104.8 | 106.4 | 84.1 |
| 80 | 3 | LSQ647-2500LB | LSQ6472500XLX3 | 578 | 305 | 228.6 | M33 | 8-36 | 66.7 | 127 | 6.4 | 127 | 9.53 | 13.49 | 138 | 108 | 127 | 128.6 | 106.4 |
| 100 | 4 | LSQ647-2500LB | LSQ6472500XLX4 | 673 | 355 | 273.0 | M39x3 | 8-42 | 76.2 | 157.2 | 6.4 | 157.18 | 11.13 | 16.66 | 168 | 131.8 | 157.2 | 158.8 | 130.2 |
| 150 | 6 | LSQ647-2500LB | LSQ6472500XLX6 | 914 | 485 | 358.3 | M52x3 | 8-55 | 108.0 | 215.9 | 6.4 | 228.6 | 12.7 | 19.84 | 227 | 190.5 | 215.9 | 217.5 | 188.9 |
| 200 | 8 | LSQ647-2500LB | LSQ6472500XLX8 | 1022 | 550 | 438.2 | M52x3 | 12-55 | 127.0 | 269.7 | 6.4 | 279.4 | 14.27 | 23.01 | 281 | 238.1 | 269.9 | 271.5 | 236.5 |
| 250 | 10 | LSQ647-2500LB | LSQ6472500XLX10 | 1270 | 675 | 539.8 | M64x3 | 12-68 | 165.1 | 323.8 | 6.4 | 342.9 | 17.48 | 30.18 | 335 | 285.8 | 323.8 | 325.4 | 284.2 |
| 300 | 12 | LSQ647-2500LB | LSQ6472500XLX12 | 1422 | 760 | 619.1 | M70x3 | 12-74 | 184.2 | 381 | 6.4 | 406.4 | 17.48 | 33.32 | 392 | 342.9 | 381 | 382.6 | 341.3 |
This pneumatic zero-friction retractable ball valve features six core advantages:
Adopting a zero-friction forced sealing structure, it maintains reliable sealing performance even after more than 100,000 frequent opening and closing cycles.
Ultra-fast response: it cuts off over 95% of the flow within 0.2 seconds. Multiple driving modes are optional according to working conditions, including manual (3~20s shutdown), pneumatic (1~5s shutdown) and electric (5~15s shutdown).
The operating torque is only 1/4 of that of conventional ball valves, ensuring effortless operation and lower requirements for actuators.
Soft-sealed type allows on-line secondary forced compensation sealing without valve disassembly, greatly reducing downtime and maintenance costs.
Equipped with a self-cleaning sealing surface function, it automatically removes adhered impurities during operation, making it highly suitable for granular and easily crystallized media.
Designed with a bidirectional double-sided sealing structure, it achieves equally reliable tight shutoff in both flow directions with no installation direction restrictions.
