Bi directional worm gear wafer butterfly valve
D371x bi directional worm gear wafer butterfly valve
Product overview
D371x worm gear wafer butterfly valve adopts double eccentric structure, which has the sealing function of closing more tightly, and the sealing performance is reliable. Stainless steel and NBR oil resistant rubber are used as sealing materials, which have long service life. The rubber seal ring can be located on the valve body or butterfly plate. It can be used in different media for users to choose. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance. It can be used in different media as long as the sealing material of sealing valve seat is replaced. The valve has the function of two-way sealing. It is not controlled by the flow direction of medium or affected by the space position. It can be installed in any direction. The valve has unique structure, flexible operation, labor saving and convenience.
Structural features
D371x worm gear wafer butterfly valve adopts the sandwich center plate structure, which is mainly composed of valve body, valve plate, valve shaft, valve seat and transmission device. The structure is simple and compact, small and light, and convenient for transportation, installation and disassembly. It has the advantages of quick opening and closing, small operation torque, labor saving and light weight, good sealing performance, long service life and zero leakage. Its flow characteristics are similar to straight line, Good regulation performance. The valve is a rubber seal. When closed, the butterfly plate and valve seat have good sealing performance, two-way sealing performance is excellent, and the torque value is small. The valve maintains 100% zero leakage under working pressure, and the friction between butterfly plate and seat seal is small. The valve plate is driven by the valve shaft, and the valve plate rotates 90 degrees. The butterfly plate can be opened and closed flexibly without jamming and jumping, and the torque is small.
Purpose
Soft seal center line clip butterfly valve and double eccentric flange butterfly valve have compact structure, easy 90 ° rotary switch, reliable sealing and long service life. They are widely used in water supply and drainage and gas pipelines for regulating flow and intercepting medium in waterworks, power plants, steel mills, papermaking, chemical industry, light textile, food, etc.
Main shape and connection dimension
DN | L | H1 | H | A | B | 0.6MPa | 1.0MPa | 1.6MPa | |||
DO | n-d | DO | n-d | DO | n-d | ||||||
50 | 43 | 63 | 306 | 180 | 200 | 110 | 4-14 | 125 | 4-18 | 125 | 4-18 |
65 | 46 | 70 | 321 | 180 | 200 | 130 | 4-14 | 145 | 4-18 | 145 | 4-18 |
80 | 46 | 83 | 346 | 180 | 200 | 150 | 4-18 | 160 | 8-18 | 160 | 8-18 |
100 | 52 | 105 | 387 | 180 | 200 | 170 | 4-18 | 180 | 8-18 | 180 | 8-18 |
125 | 56 | 115 | 411 | 180 | 200 | 200 | 8-18 | 210 | 8-18 | 210 | 8-18 |
150 | 56 | 137 | 447 | 270 | 280 | 225 | 8-18 | 240 | 8-22 | 240 | 8-22 |
200 | 60 | 164 | 572 | 270 | 280 | 280 | 8-18 | 295 | 8-22 | 295 | 8-22 |
250 | 68 | 206 | 646 | 270 | 280 | 335 | 12-18 | 350 | 12-22 | 355 | 12-26 |
300 | 78 | 230 | 738 | 380 | 420 | 395 | 12-22 | 400 | 12-22 | 410 | 12-26 |
350 | 78 | 248 | 761 | 380 | 420 | 445 | 12-22 | 460 | 16-22 | 470 | 16-26 |
400 | 102 | 289 | 877 | 450 | 470 | 495 | 16-22 | 515 | 16-26 | 525 | 16-30 |
450 | 114 | 320 | 938 | 480 | 490 | 550 | 16-22 | 565 | 20-26 | 585 | 20-30 |
500 | 127 | 343 | 993 | 480 | 490 | 600 | 20-22 | 620 | 20-26 | 650 | 20-33 |
600 | 154 | 413 | 1131 | 480 | 490 | 705 | 20-26 | 725 | 20-30 | 770 | 20-36 |
700 | 165 | 478 | 1476 | 640 | 660 | 810 | 24-26 | 840 | 24-30 | 840 | 24-36 |
800 | 190 | 525 | 1533 | 640 | 660 | 920 | 24-30 | 950 | 24-33 | 950 | 24-39 |
900 | 203 | 585 | 1655 | 750 | 860 | 1020 | 24-30 | 1050 | 28-33 | 1050 | 38-39 |
1000 | 216 | 640 | 1765 | 850 | 900 | 1120 | 28-30 | 1160 | 28-36 | 1170 | 28-42 |
1200 | 254 | 755 | 1995 | 850 | 900 | 1340 | 32-33 | 1380 | 32-39 | 1390 | 32-48 |
