Model number: D641W
Nominal diameter: DN100~3200mm
Pressure range: PN0.05~0.6MPa
Applicable temperature: -40～+450℃
Connection method: flange type
Applicable medium: coal gas, dusty gas, flue gas, etc.
Product Structure Features
The Pneumatic ventilation butterfly valve is designed in the form of a central line butterfly plate, making it have small flow resistance, large flow, and easy operation. It is often used in dust containing systems and cold or hot air gas pipelines in industries such as chemical, building materials, and power plants as a gas medium to regulate flow or cut off devices.
The Main Structure Features Include
1. The 90 degree swing opens quickly to meet the fast closing condition;
2. Bearing external structure prevents medium in the pipeline from entering the bearing;
3. Large diameter rolling bearings are used, with low friction and torque.
Main external connection dimensions
| DN | Structure length | Overall dimensions(reference value） | Connection size（Standard value） | weight（kg） | ||||||||
| 0.05MPa和0.25MPa | 0.6MPa | |||||||||||
| mm | inch | L | H | H1 | A | D | D1 | n-d | D | D1 | n-d | |
| 50 | 2 | 108 | 70 | 337 | 180 | 140 | 110 | 4-14 | 140 | 110 | 4-14 | 16 |
| 65 | 2-1/2 | 112 | 80 | 357 | 180 | 160 | 130 | 4-14 | 160 | 130 | 4-14 | 17 |
| 80 | 3 | 114 | 95 | 385 | 180 | 190 | 150 | 4-18 | 190 | 150 | 4-18 | 19 |
| 100 | 4 | 127 | 105 | 405 | 180 | 210 | 170 | 4-18 | 210 | 170 | 4-18 | 22 |
| 125 | 5 | 140 | 120 | 483 | 245 | 240 | 200 | 8-18 | 240 | 200 | 8-18 | 27 |
| 150 | 6 | 140 | 132 | 508 | 245 | 265 | 225 | 8-18 | 265 | 225 | 8-18 | 31 |
| 200 | 8 | 152 | 160 | 566 | 245 | 320 | 280 | 8-18 | 320 | 280 | 8-18 | 47 |
| 250 | 10 | 165 | 187 | 623 | 245 | 375 | 335 | 12-18 | 375 | 335 | 12-18 | 68 |
| 300 | 12 | 178 | 220 | 750 | 355 | 440 | 395 | 12-22 | 440 | 395 | 12-22 | 79 |
| 350 | 14 | 190 | 245 | 803 | 355 | 490 | 445 | 12-22 | 490 | 445 | 12-22 | 130 |
| 400 | 16 | 216 | 270 | 852 | 355 | 540 | 495 | 16-22 | 540 | 495 | 16-22 | 141 |
| 450 | 18 | 222 | 297 | 907 | 355 | 595 | 550 | 16-22 | 595 | 550 | 16-22 | 190 |
| 500 | 20 | 229 | 322 | 960 | 355 | 645 | 600 | 20-22 | 645 | 600 | 20-22 | 225 |
| 600 | 24 | 267 | 377 | 1080 | 550 | 755 | 705 | 20-26 | 755 | 705 | 20-26 | 245 |
| 700 | 28 | 292 | 430 | 1185 | 550 | 860 | 810 | 24-26 | 860 | 810 | 24-26 | 320 |
| 800 | 32 | 318 | 487 | 1300 | 550 | 975 | 920 | 24-30 | 975 | 920 | 24-30 | 405 |
| 900 | 36 | 330 | 537 | 1400 | 550 | 1075 | 1020 | 24-30 | 1075 | 1020 | 24-30 | 500 |
| 1000 | 40 | 410 | 587 | 1500 | 550 | 1175 | 1120 | 28-30 | 1175 | 1120 | 28-30 | 700 |
| 1200 | 48 | 470 | 702 | 1825 | 600 | 1375 | 1320 | 32-30 | 1405 | 1340 | 32-33 | 750 |
Add: No. 175, Lane 250, Fangde Road, Jiading District, Shanghai
Tel: +86-21-51863336
Fax: +86-21-34677003
E-mail: shldv@139.com
Web: Http://www.shldv.com
Fujian plant site：2233 Maosheng Road, Nan 'an City, Fujian Province
Factory telephone：+86-21-31007333
Shanghai Public Network Anbei: 31011402004337Sitemap
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