This valve is suitable for petroleum, chemical industry, food, medicine, papermaking, hydropower, ship, water supply and drainage, smelting, energy and other systems. It can be used as regulating and closing equipment on a variety of corrosive, non-corrosive gases, liquids, semi-fluids and solid powder pipes and containers.
Product characteristics
1. Small and portable, easy to disassemble and repair, and can be installed in any position.
2. It has simple structure, compact structure and quick starting and closing of 90 degree operation.
3. Small operating torque, light and labor-saving.
4. To achieve complete seal, gas test leakage is zero.
5. Choosing different parts and materials can be applied to various media.
6. Flow characteristic tends to be straight line and has good regulation performance.
7. Opening and closing test times are as many as tens of thousands and have a long service life.
Design drawings
Performance specification
Nominal diameter | 50(2″) ~1000 (40″) | 50(2″) ~800 (32″) |
Nominal pressure | 1.0 | 1.6 |
Test pressure | housing | 1.5 | 2.4 |
Seal up | 1.1 | 1.76 |
Applicable temperature | -15~+150 |
Applicable medium | Freshwater, sewage, seawater, air, steam, food, medicine, various oils, acids, alkalis, salts, etc. |
Main Dimensions and Weights of "A" Butterfly Valve
DN | A | B | C | D | L | H | D1 | n-ø | K | E | n1-ø1 | ø2 | G | weight |
mm | inch |
50 | 2″ | 161 | 80 | 42 | 52.9 | 32 | 84.84 | 120 | 4-ø23 | 77 | 57.15 | 4-ø6.7 | 12.6 | 118 | 2.5 |
65 | 2.5″ | 175 | 89 | 44.7 | 64.5 | 32 | 96.2 | 136.2 | 4-ø26.5 | 77 | 57.15 | 4-ø6.7 | 12.6 | 137 | 3.2 |
80 | 3″ | 181 | 95 | 45.2 | 78.8 | 32 | 61.23 | 160 | 8-ø18 | 77 | 57.15 | 4-ø6.7 | 12.6 | 143 | 3.6 |
100 | 4″ | 200 | 114 | 52.1 | 104 | 32 | 70.80 | 185 | 4-ø24.5 | 92 | 69.85 | 4-ø10.3 | 15.77 | 156 | 4.9 |
125 | 5″ | 213 | 127 | 54.4 | 123.3 | 32 | 82.28 | 215 | 4-ø23 | 92 | 69.85 | 4-ø10.3 | 18.92 | 190 | 7 |
150 | 6″ | 226 | 139 | 55.8 | 155.6 | 32 | 91.08 | 238 | 4-ø25 | 92 | 69.85 | 4-ø10.3 | 18.92 | 212 | 7.8 |
200 | 8″ | 260 | 175 | 60.6 | 202.5 | 45 | 112.89/76.35 | 295 | 4-ø25/4-ø23 | 115 | 88.9 | 4-ø14.3 | 22.1 | 268 | 13.2 |
250 | 10″ | 292 | 203 | 65.6 | 250.5 | 45 | 92.40 | 357 | 4-ø29 | 115 | 88.9 | 4-ø14.3 | 28.45 | 325 | 19.2 |
300 | 12″ | 337 | 242 | 76.9 | 301.6 | 45 | 105.34 | 407 | 4-ø29 | 140 | 107.95 | 4-ø14.3 | 31.6 | 403 | 32.5 |
350 | 14″ | 368 | 267 | 76.5 | 333.3 | 45 | 91.11 | 467 | 4-ø30 | 140 | 107.95 | 4-ø14.3 | 31.6 | 436 | 41.3 |
400 | 16″ | 400 | 309 | 86.5 | 389.6 | 51.2/72 | 100.47/102.42 | 515/525 | 4-ø26/4-ø30 | 197 | 158.75 | 4-ø20.6 | 33.15 | 488 | 61 |
450 | 18″ | 422 | 328 | 105.6 | 440.51 | 51.2/72 | 88.39/91.51 | 565/585 | 4-ø26/4-ø30 | 197 | 158.75 | 4-ø20.6 | 38 | 539 | 79 |
500 | 20″ | 480 | 361 | 131.8 | 491.6 | 64.2/82 | 96.99/101.68 | 620/650 | 4-ø26/4-ø33 | 197 | 158.75 | 4-ø20.6 | 41.15 | 593 | 128 |
600 | 24″ | 562 | 459 | 152 | 592.5 | 70.2/82 | 113.42/120.46 | 725/770 | 20-ø30/20-ø36 | 276 | 215.9 | 4-ø22.2 | 50.65 | 816 | 188 |
700 | 28″ | 624 | 520 | 163 | 695 | 66/82 | 109.65 | 840 | 24-ø30/20-ø36 | 300 | 254 | 8-ø18 | 55/63.35 | 895 | 284 |
800 | 32″ | 672 | 591 | 188 | 794.7 | 66/82 | 124 | 950 | 24-ø33/24-ø39 | 300 | 254 | 8-ø18 | 55/63.35 | 1015 | 368 |
900 | 36″ | 720 | 656 | 203 | 864.7 | 118 | 117.57 | 1050 | 24-ø33 | 300 | 254 | 8-ø18 | 75 | 1115 | 713 |
1000 | 40″ | 800 | 721 | 216 | 965 | 142 | 129.89 | 1160 | 24-ø36 | 300 | 254 | 8-ø18 | 85 | 1230 | 864 |