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Flanged Butterfly Valve
Flanged butterfly valve adopts double eccentric soft seal structure, absorbs the structure and characteristics of similar products at home and abroad, overcomes the defects existing in the use of the original products, makes its life more durable and seals more reliable.
Flanged Butterfly Valve
Flanged butterfly valve adopts double eccentric soft seal structure, absorbs the structure and characteristics of similar products at home and abroad, overcomes the defects existing in the use of the original products, makes its life more durable and seals more reliable.
| Nominal Pressure | 1.0/1.6MPa |
| Applicable Temperature | 0 ∼ 80oC |
| Applicable Medium | Water, sewage |
| Operating mode | Manual operation can be selected according to user needs, such as hand wheel type or pipe network type: for DN600 and below, it is recommended to use a first stage worm gear transmission; DN600 and above should use two-stage worm gear transmission |
Additional Information
Process Description
Ductile cast iron is used as material to form the basic shape of the valve. The valve then goes through the process of casting, shot blasting treatment, stress-relief annealing, machining, butterfly valve disc overlay welding, powder coating, assembly, pressure testing, and packaging for storage. With a final inspection, the valve will be packaged and sent out.
Related Documentation
The flange butterfly valve adopts double eccentric soft seal structure, absorbs the structure and characteristics of similar products at home and abroad, overcomes the defects existing in the use of the original product, makes its life more durable and seals more reliable. According to the needs of users, manual, electric, pneumatic methods can control the valve switch
Features:
- Small size, light weight, easy installation, space saving
- Using double eccentric results, the operation is labor-saving, more than half of the same caliber gate valve
- Good flow performance, small fluid resistance
- The sealing surface of the butterfly valve plate is processed by robot welding stainless steel
- CNC machining, spherical sealing, to ensure that the butterfly valve sealed on both sides
- Bi-directional zero leakage
- The sealing ring is installed in the valve body to reduce impact damage and increase service life
- It has good regulating performance and can be used as a regulating valve
- According to user needs, manual, electric, pneumatic can control the valve switch
Installation Dimensions Unit:mm
| DN | L | L
expansion |
stretch | H | 1.0MPa | 1.6MPa | ||||
| D | D1 | n – φd | D | D1 | n – φd | |||||
| 80 | 114 | 182 | 12 | 240 | 200 | 160 | 8 – φ19 | 200 | 160 | 8 – φ19 |
| 100 | 127 | 201 | 15 | 255 | 220 | 180 | 8 – φ19 | 220 | 180 | 8 – φ19 |
| 150 | 140 | 223 | 20 | 290 | 285 | 240 | 8 – φ23 | 285 | 240 | 8 – φ23 |
| 200 | 152 | 242 | 20 | 340 | 340 | 295 | 8 – φ23 | 340 | 295 | 12 – φ23 |
| 250 | 165 | 261 | 20 | 395 | 395 | 350 | 12 – φ23 | 405 | 355 | 12 – φ28 |
| 300 | 178 | 279 | 23 | 405 | 445 | 400 | 12 – φ23 | 460 | 410 | 12 – φ28 |
| 350 | 190 | 270 | 25 | 460 | 505 | 460 | 16 – φ23 | 520 | 470 | 16 – φ28 |
| 400 | 216 | 338 | 25 | 510 | 565 | 515 | 16 – φ28 | 580 | 525 | 16 – φ31 |
| 450 | 222 | / | / | 550 | 615 | 565 | 20 – φ28 | 640 | 585 | 20 – φ31 |
| 500 | 229 | 362 | 25 | 590 | 670 | 620 | 20 – φ28 | 715 | 650 | 20 – φ34 |
| 600 | 267 | 408 | 30 | 670 | 780 | 725 | 20 – φ31 | 840 | 770 | 20 – φ37 |
| 700 | 292 | 433 | 30 | 740 | 895 | 840 | 24 – φ31 | 910 | 840 | 24 – φ37 |
| 800 | 318 | 472 | 35 | 810 | 1015 | 950 | 24 – φ34 | 1025 | 950 | 24 – φ40 |
| 900 | 330 | / | / | 877 | 1115 | 1050 | 28 – φ34 | 1125 | 1050 | 28 – φ40 |
| 1000 | 410 | 565 | 35 | 920 | 1230 | 1160 | 28 – φ37 | 1255 | 1170 | 28 – φ43 |
| 1200 | 480 | 640 | 40 | 1030 | 1455 | 1380 | 32 – φ40 | 1485 | 1390 | 32 – φ49 |
| 1400 | 530 | / | / | 1270 | 1675 | 1590 | 36 – φ43 | 1685 | 1590 | 36 – φ49 |
| 1600 | 600 | / | / | 1655 | 1915 | 1820 | 40 – φ48 | 1930 | 1820 | 40 – φ56 |
| 1800 | 670 | / | / | 1840 | 2115 | 2020 | 44 – φ48 | 2130 | 2020 | 44 – φ56 |
| 2000 | 760 | / | / | 2050 | 2325 | 2230 | 48 – φ48 | 2345 | 2230 | 48 – φ62 |
| 2200 | 1000 | / | / | 2220 | 2550 | 2440 | 52 – φ56 | / | / | / |
| 2400 | 1100 | / | / | 2460 | 2760 | 2650 | 56 – φ56 | / | / | / |
| 2600 | 1200 | / | / | 25100 | 2960 | 2850 | 60 – φ56 | / | / | / |
| 2800 | 1200 | / | / | 2520 | 3180 | 3070 | 64 – φ56 | / | / | / |
| 3000 | 1200 | / | / | 2520 | 3405 | 3290 | 68 – φ62 | / | / | / |
Materials of main components
| No.1 | Part Name | Material |
| 1 | Body | Ductile iron |
| 2 | Disc | Ductile iron |
| 3 | Disc seal ring | 316L |
| 4 | Valve shaft | Stainless steel |
| 5 | O-ring | NBR |
| 6 | Valve sear sealing ring | NBR/EPDM |
| 7 | Bearing | Copper based self – lubricating bearings |
