Model | KML057 |
Caliber | DN50~DN1200 |
Pressure | CLASS150~CLASS300 |
Temperature | -20℃~120℃ |
Connection method | Flange, Wafer, Lugged, etc |
Design Standards | API6D, API 609, ASME B16.34, ASME B16.10, ISO 5211, etc |
Material | ASTM A216 WCB,ASTM A352 LCB, ASTM A351 CF8, ASTM A351 CF8M, ASTM A995 4A/5A/6A, A536 65-15-12/A536 60-40-18, UNS C95800, UNS C95500, etc |
Operation | Lever, Gear, Pneumatic, Electric, Hydraulic, etc |
The structural feature of the double eccentric butterfly valve is that the valve stem axis deviates from the center of the butterfly plate and from the center of the body. The double eccentric effect allows the butterfly plate to quickly detach from the valve seat after the valve is opened, greatly eliminating unnecessary excessive compression and scratching between the butterfly plate and the valve seat, reducing the opening distance, lowering wear, and improving the service life of the valve seat. Mainly suitable for water supply and drainage systems in water plants, power plants, steel mills, papermaking, chemical industry, catering, etc., especially suitable for water supply pipelines.
Characteristics of Double Eccentric Butterfly Valve Products 1. Simple and compact structure, light weight, 90 ° rotation, quick switch. 2. Reasonable design, easy to assemble and disassemble, and convenient for maintenance. 3. Adopting an eccentric structure reduces the friction of the sealing ring and extends the service life of the valve. 4. Completely sealed, with zero leakage. 5. Replacing valve plate sealing rings, O-rings, butterfly plates, shafts, and other materials can be used for various media and different temperatures.
The valve body adopts integral casting technology, with a compact structure, small volume, and light weight; Double eccentric installation of valve plate. Eccentric structure greatly reduces operating torque; Low flow resistance, high rated flow coefficient, about three times that of a single seat valve of the same caliber; Strong self-cleaning ability and long service life; The valve adopts a flange free structure, and the process pipeline adopts a clamp type installation; The three major types of standard actuators (pneumatic piston type, electric) are interchangeable.
DN | A | B | C | H | L | L1 | L2 | L3 | G | Cv |
50 | 110 | 80 | 108 | 303.5 | 226 | 173 | 45 | 267 | 150 | 135 |
65 | 134 | 80 | 112 | 337.5 | 226 | 173 | 45 | 267 | 150 | 220 |
80 | 131 | 95 | 114 | 342 | 226 | 173 | 45 | 267 | 150 | 302 |
100 | 150 | 114 | 127 | 371 | 226 | 173 | 45 | 267 | 150 | 600 |
125 | 170 | 114 | 140 | 406 | 226 | 173 | 45 | 267 | 150 | 1022 |
150 | 180 | 139 | 140 | 433.5 | 226 | 173 | 45 | 267 | 150 | 1579 |
200 | 210 | 175 | 152 | 573 | 313 | 239 | 63 | 358 | 302 | 3136 |
250 | 246 | 203 | 165 | 641 | 313 | 239 | 63 | 357 | 302 | 5340 |
300 | 276 | 242 | 178 | 695 | 307 | 226 | 80 | 357 | 302 | 8250 |
350 | 328 | 256 | 190 | 777 | 307 | 226 | 80 | - | 302 | 11917 |
400 | 376 | 296 | 216 | 957 | 103 | 174 | 104 | 103 | 279 | 16388 |
450 | 407 | 316 | 222 | 1007 | 103 | 174 | 104 | 103 | 278 | 21705 |
500 | 448 | 352 | 229 | 1085 | 103 | 174 | 104 | 103 | 305 | 27908 |
600 | 518 | 441 | 267 | 1246 | 138 | 174 | 130 | 138 | 305 | 43116 |
700 | 560 | 473 | 292 | 1415 | 560 | 1415 | 243 | 173 | 358 | 49500 |
800 | 620 | 527 | 318 | 1528 | 620 | 1529 | 243 | 173 | 358 | 68250 |
900 | 685 | 581 | 330 | 1741 | 685 | 1743 | 278 | 201 | 409 | 86375 |
1000 | 735 | 653 | 410 | 1863 | 735 | 1864 | 278 | 201 | 409 | 119750 |
1200 | 917 | 796 | 470 | 2240 | 917 | 2241 | 458 | 310 | 435 | 154000 |