The product features a rational structure and reliable sealing. Its dual-seal design combines a durable bellows seal with packing to ensure leak-free valve stem operation and prevent fluid loss. The sealing surface is overlaid with a cobalt-based hard alloy, offering excellent wear resistance, corrosion resistance, and friction resistance, ensuring a long service life. The valve stem undergoes quenching and tempering followed by surface nitriding, delivering excellent corrosion resistance and wear resistance. The valve stem's up/down position indicator provides a more intuitive visual reference.
15 | 130 | 95 | 65 | 45 | 16 | 2 | 120 | 230 | 4-14 |
20 | 150 | 105 | 75 | 58 | 18 | 2 | 140 | 230 | 4-14 |
25 | 160 | 115 | 85 | 68 | 18 | 2 | 140 | 230 | 4-14 |
32 | 180 | 140 | 100 | 78 | 18 | 2 | 160 | 230 | 4-18 |
40 | 200 | 150 | 110 | 88 | 18 | 3 | 180 | 260 | 4-18 |
50 | 230 | 165 | 125 | 102 | 20 | 3 | 180 | 260 | 4-18 |
65 | 290 | 185 | 145 | 122 | 20 | 3 | 200 | 270 | 4-18 |
80 | 310 | 200 | 160 | 138 | 22 | 3 | 220 | 300 | 8-18 |
100 | 350 | 220 | 180 | 158 | 22 | 3 | 280 | 370 | 8-18 |
125 | 400 | 250 | 210 | 188 | 22 | 3 | 320 | 400 | 8-18 |
150 | 480 | 285 | 240 | 212 | 22 | 3 | 350 | 460 | 8-22 |
200 | 600 | 340 | 295 | 268 | 24 | 3 | 450 | 640 | 12-22 |
250 | 730 | 405 | 355 | 320 | 26 | 3 | 500 | 800 | 12-26 |
300 | 850 | 460 | 410 | 378 | 28 | 4 | 550 | 900 | 12-26 |
350 | 980 | 520 | 470 | 438 | 30 | 4 | 600 | 1050 | 16-26 |
400 | 1100 | 580 | 525 | 490 | 32 | 4 | 650 | 1150 | 16-30 |
