Description
The lug type butterfly valve can be driven by manual, worm gear, pneumatic or electric, and the connection method can be selected from flange or wafer. Sealed, the pressure range is PN0.1-10Mpa, the nominal diameter is DN40～2000mm, and the material can be cast steel or stainless steel. Due to the wide range of valves used, the same valve has different matching in different occasions and working conditions.
The disc of the wafer lug butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open
| Norminal Diameters | Size（mm） | Weight(kg) | |||||||||||||
| mm | inch | A | B | C | D | L | H | D1 | n-∅ | K | E | ni-∅1 | ∅2 | G | |
| 50 | 2″ | 161 | 80 | 42 | 52.9 | 32 | 88.38 | 125 | 4-M16 | 77 | 57.15 | 4-6.7 | 12.6 | 118 | 3.8 |
| 65 | 2.5″ | 175 | 89 | 44.7 | 64.5 | 32 | 102.54 | 145 | 4-M16 | 77 | 57.15 | 4-6.7 | 12.6 | 137 | 4.2 |
| 80 | 3″ | 181 | 95 | 45.2 | 78.8 | 32 | 61.23 | 160 | 8-M16 | 77 | 57.15 | 4-6.7 | 12.6 | 178 | 4.7 |
| 100 | 4″ | 200 | 114 | 52.1 | 104 | 32 | 68.88 | 180 | 8-M16 | 92 | 69.85 | 4-10.3 | 15.77 | 206 | 9 |
| 125 | 5″ | 213 | 127 | 54.4 | 123.3 | 32 | 80.369 | 210 | 8-M16 | 92 | 69.85 | 4-10.3 | 18.92 | 238 | 10.9 |
| 150 | 6″ | 226 | 139 | 55.8 | 155.6 | 32 | 91.84 | 240 | 8-M20 | 92 | 69.85 | 4-10.3 | 18.92 | 266 | 14.2 |
| 200 | 8″ | 260 | 175 | 60.6 | 202.5 | 45 | 112.89 76.35 |
295 | 8-M20 12-M24 |
115 | 88.9 | 4-14.3 | 22.1 | 329 | 18.2 |
| 250 | 10″ | 292 | 203 | 65.6 | 250.5 | 45 | 90.59 91.88 |
350 355 |
12-M20 12-M24 |
115 | 88.9 | 4-14.3 | 28.45 | 393 | 26.8 |
| 300 | 12″ | 337 | 242 | 76.9 | 301.6 | 45 | 103.52 106.12 |
400 410 |
12-M20 12-M24 |
140 | 107.95 | 4-14.3 | 31.6 | 462 | 40 |
| 350 | 14″ | 368 | 267 | 76.5 | 333.3 | 45 | 89.74 91.69 |
460 470 |
19-M20 16-M24 |
140 | 107.95 | 4-14.3 | 31.6 | 515 | 56 |
| 400 | 16″ | 400 | 309 | 86.5 | 389.6 | 51.2 72 |
100.48 102.42 |
515 525 |
16-M24 16-M27 |
197 | 158.75 | 4-20.6 | 33.15 | 579 | 96 |
| 450 | 18″ | 422 | 328 | 106 | 440.51 | 51.2 72 |
88.38 91.51 |
565 585 |
20-M24 20-M27 |
197 | 158.75 | 4-20.6 | 38 | 627 | 122 |
| 500 | 20″ | 480 | 361 | 132 | 491.6 | 64.2 82 |
96.99 101.68 |
620 650 |
20-M24 20-M30 |
197 | 158.75 | 4-20.6 | 41.15 | 696 | 202 |
| 600 | 24″ | 562 | 459 | 152 | 592.5 | 70.2 82 |
113.42 12.46 |
725 770 |
20-M27 20-M33 |
276 | 215.9 | 4-22.2 | 50.65 | 821 | 270 |
Application
Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems in thermal power plants.
It is used for gas pipelines in the sulfuric acid industry: the inlet and outlet of the blower in front of the furnace, the inlet and outlet of the relay fan, the series and connection valves of the electric demister, the inlet and outlet of the S02 main blower, the adjustment of the converter, the inlet and outlet of the preheater, etc. and the use of cut-off gas.
It is used for sulfur incineration, conversion and dry suction in the sulfuric acid system. It is the preferred brand of valves for sulfuric acid plants. It is considered by the majority of users as: good sealing performance, light operation, secondary corrosion, high temperature resistance, convenient operation, Flexible, safe and reliable butterfly valves have been widely used.
Lug butterfly valves are also widely used in: SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, nitric acid, hydrochloric acid in chemical, petrochemical, smelting, pharmaceutical, food and other industries , Sulfuric acid, phosphoric acid and other media pipelines are used as adjustment and shut-off devices.
Reviews
There are no reviews yet.