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Literature

WAFER & LUG TYPE BUTTERFLY VALVES

WAFER BUTTERFLY VALVE (Model: BTV-A) overall & connection dimensions & weight
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Size A B C D L H D1 n-Φ K E n1-Φ1 Φ2 G n2-M Weigh
(Kg)
mm inch
50 2" 161 80 42 52.9 32 84.84 120 4-23 90 70 4-7 12.6 118 --- 2.5
65 2.5" 175 89 44.7 64.5 32 96.2 136.2 4-26.5 90 70 4-7 12.6 137 --- 3.2
80 3" 181 95 45.2 78.8 32 61.23 160 8-18 90 70 4-7 12.6 143 --- 3.6
100 4" 200 114 52.1 104 32 70.80 185 4-24.5 90 70 4-9 15.77 156 --- 4.9
125 5" 213 127 54.4 123.3 32 92.28 215 4-23 90 70 4-9 18.92 190 --- 7
150 6" 226 139 55.8 155.6 32 91.08 238 4-25 90 70 4-9 18.92 212 --- 7.8
200 8" 260 175 60.6 202.5 45 112.89 295 4-25 125 102 4-12 22.10 268 --- 13.2
              76.35   4-23              
250 10" 292 203 65.6 250.5 45 92.40 357 4-29 125 102 4-12 28.45 325 --- 19.2
300 12" 337 242 76.9 301.6 45 105.3 407 4-29 150 125 4-14 31.60 403 --- 32.5
350 14" 368 267 76.5 333.3 45 91.11 467 4-30 175 140 4-18 31.60 436 --- 41.3
400 16" 400 309 86.5 389.6 51.2 100.47 515 4-26 175 140 4-18 33.15 488 --- 61
            72 102.4 525 4-30              
450 18" 422 328 105.6 440.51 51.2 88.39 565 4-26 175 140 4-18 38 539 --- 79
            72 91.51 585 4-30              
500 20" 480 361 131.8 491.6 64.2 96.99 620 4-26 210 165 4-22 41.15 593 --- 128
            82 101.68 650 4-33              
600 24" 562 459 152 592.5 70.2 113.42 725 20-30 210 165 4-22 50.65 816 --- 188
            82 120.46 770 20-36              
700 28" 624 520 163 695 66 109.65 840 24-30 300 254 8-18 55 895 4-M33 484
            82     20-36       63.35      
800 32" 672 591 188 794.7 66 124 950 24-33 300 254 8-18 55 1015 --- 368
            82 117.57   24-39       63.35      
900 36" 720 656 203 864.7 118 129.89 1050 24-33 300 254 8-18 75 1115 4-M33 713
1000 40" 800 721 216 965 142   1160 24-36 300 254 8-18 85 1230 4-M33 864
Features:
 DN50(2")--DN600 (32") Type "lug" butterfly valves are suitable for the pressure PN10 and PN16 grades separately. Two dimensions in one column show the connection dimensions of Pn10/PN16 pressure grades. The upper flanges of the butterfly valves accommodate all types of operators: manual, worm gearing, electric and pneumatic actuators.

 Difference between Type "wafer" and "lug": Both types "wafer" and "lug" have the same constructiona dn performances and made of the same materials. The main difference between them is that Type "wafer" valves are mounted between pipe flanges by bolts (or extended hexagon-headed bolts), while Type "lug" can be either mounted between two pipes by ordinary hexagon headed bolts or mounted at the pipe end. As the valve is used at the end of pipeline, it is necessary to indicate in order.