Valve worm gear box

Ever-Power Machinery provides customers with high-qualityValve worm gear box product.Adhering to the tenet of "Quality First, Integrity Service", we will provide users with high-quality products and services with reasonable prices and reliable quality!


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Valve worm gear box
QDX3-G series partial rotary valve manual device This product is a 90° rotary drive device, suitable for ball valves, butterfly valves, plug valves and other types of valves.The special type can output 360° rotation angle.There are 12 models in total.And the handwheel direction upwards is suitable for pipeline valves.
Valve worm gear box structure diagram
Technical data  
model G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14
Speed ​​ratio 399: 1 409: 1 513: 1 450: 1 550: 1 500: 1 600: 1 1580: 1 1950: 1 2350: 1 2650: 1 2650: 1
Input torque Nm 78 98 112 122 133 156 156 156 195 195 195 250
Output torque Nm 2334 3006 4309 4000 5480 5850 7020 18500 28500 34500 39000 50000
Rotation stroke 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 ° 90 °
Limit adjustment 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ± 5 ° ±
Butterfly valve with DN 125-150 200-250 300-350 400-450 500-600 700 800 900-1000 1100-1200 1400-1600 1800-2000 2400
Ball valve with DN 80 100 150 200 250-300 350 400 500 600 800 1000 1200
Connection size  
Connecting flange (D) 125 150 175 210 260 300 350 415 475 560 650 800
Center of connecting hole (D1) 102 125 140 165 200 254 298 356 406 483 590 720
Flange concave surface (D2) 70X3 85X3 100X4 130X5 160X5 200X5 230X5 260X5 300X8 370X8 490X8 600X8
Number of holes: Aperture (NM) 4-M10 4-M12 4-M16 4-M20 8-M16 8-M16 8-M20 12-M20 12-M20 12-M22 12-M27 12-M30
Standard shaft hole (d) 24 30 36 40 50 60 80 90 110 130 160 200
Shaft hole (dmin-max) 22 ~ 26 28 ~ 32 35 ~ 38 38 ~ 48 45 ~ 58 55 ~ 70 75 ~ 85 90 ~ 100 98 ~ 120 115 ~ 145 160 ~ 180 200 ~ 250
Number of flat keys X X90°(b) 8X1 10X1 12X1 12X2 16X2 18X2 22X2 28X2 28X2 32X2 32X2 36X2
Installation height (h) 62 68 75 105 110 120 120 150 180 195 205 250
Diameter of handwheel Ф 240 280 320 320 350 400 500 500 600 600 600 600
外形 尺寸  
model G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14
A 305 350 400 500 525 590 710 790 940 1070 1320 1600
B 170 190 215 280 255 280 350 365 455 500 660 750
C 260 310 340 385 415 500 600 640 750 890 1080 1300
E 125 150 155 165 145 190 240 215 265 320 420 490
H 170 180 190 205 250 320 320 350 380 460 560 660
H1 68 68 78 102 105 125 133 152 164 240 240 340
Weight kg 13kg 20kg 25kg 45kg 58kg 90kg 116kg 195kg 300kg 600kg 1000kg 2000kg

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Address: Desheng Road, Yongjia County, Zhejiang Province