Tel: 15351513002
Phone: 15351513006
Phone: 0515-89118577
0515-89118677
0515-89118277
Fax: 0515-8911 8000
E-mail：jtongcn 126.com
Website: www.jtongcn.cn
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
The D41W ventilation butterfly valve/D341W worm gear ventilation butterfly valve/D641W pneumatic ventilation butterfly valve/D941W electric ventilation butterfly valve is made of the same material as the valve body and processed into a sealing ring.Its applicable temperature depends on the material of the valve body,and the nominal pressure is≤0.6MPa.It is generally used for regulating the flow rate of ventilation media in industrial,metallurgical,environmental protection and other pipelines.
Main features of ventilation butterfly valve
1.Novel and reasonable design,unique structure,lightweight,and quick opening and closing.
2.Small operating torque,easy to operate,labor-saving and agile.
3.Adopting suitable materials to meet different medium temperatures such as low,medium,and high,as well as corrosive media.
D641W Pneumatic Ventilation Butterfly Valve D941W electric ventilation butterfly valve
Ventilation butterfly valve adopts standard
Design standard:GB/T12238-1989 JB/T8692-1998
Flange connection size:GB/T9115.1-2000
Structural length:GB/T12221-1989
Pressure test:GB/T13927-1992;JB/T9092-1999
Main technical parameters of ventilation butterfly valve
Nominal Diameter | DN（mm） | 50～2000 | ||
nominal pressure | PN（MPa） | 0.05 | 0.25 | 0.6 |
test pressure | strength test | 0.075 | 0.375 | 0.9 |
Sealing test | ≤1%leakage rate | |||
Applicable Medium | Gas, dusty gas, flue gas, etc. | |||
Drive form | Manual, worm gear transmission, pneumatic transmission, electric transmission. | |||
Main component materials of ventilation butterfly valve
Part name | material |
valve body | Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel, etc |
Disc | Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chromium molybdenum titanium steel, etc |
sealing ring | Same as valve body |
valve stem | Carbon steel, 2Cr13, stainless steel, chromium nickel molybdenum titanium steel |
filler | Fluoroplastics, flexible graphite |
Selection and applicable temperature of sealing materials for ventilation butterfly valves
Material variety | carbon steel | Low Temperature Carbon Steel | alloy steel | austenitic stainless steel | chromium molybdenum steel | |
code | WCB | LCB | WC6或 WC9 | C5或or C12 | 铬Cr-18型e、304、316 | 12CrMoV |
High temperature resistance | 425℃ | 345℃ | 595℃ | 650℃ | 600℃ | 560℃ |
Low temperature resistance e | -29℃ | -46℃ | -29℃ | -29℃ | -196℃ | -40℃ |
Applicable working temperature | ≤425℃ | ≤345℃ | ≤595℃ | ≤650℃ | ≤600℃ | ≤560℃ |
External dimensions of ventilation butterfly valve
Nominal Diameter | Structural length | External dimensions | Connection size (standard value) | reference value | |||||||||||
0.05MPa和0.25MPa | 0.6MPa | ||||||||||||||
mm | inch | L | H | H0 | A | B | D | D1 | D2 | n-d | D | D1 | D2 | n-d | |
50 | 2 | 108 | 70 | 286 | 125 | 193 | 140 | 110 | 88 | 4-18 | 140 | 110 | 88 | 4-14 | 14 |
65 | 21/2 | 112 | 80 | 306 | 125 | 193 | 160 | 130 | 108 | 4-18 | 160 | 130 | 108 | 4-14 | 15 |
80 | 3 | 114 | 95 | 334 | 125 | 193 | 190 | 150 | 124 | 4-18 | 190 | 150 | 124 | 4-18 | 17 |
100 | 4 | 127 | 105 | 354 | 125 | 193 | 210 | 170 | 144 | 4-18 | 210 | 170 | 144 | 4-18 | 20 |
125 | 5 | 140 | 120 | 384 | 125 | 193 | 240 | 200 | 174 | 8-18 | 240 | 200 | 174 | 8-18 | 25 |
150 | 6 | 140 | 132 | 409 | 125 | 193 | 265 | 225 | 199 | 8-18 | 265 | 225 | 199 | 8-18 | 29 |
200 | 8 | 152 | 160 | 593 | 165 | 183 | 320 | 280 | 254 | 8-18 | 320 | 280 | 254 | 8-18 | 47 |
250 | 10 | 165 | 187 | 650 | 165 | 283 | 375 | 335 | 309 | 12-18 | 375 | 335 | 309 | 12-18 | 67 |
300 | 12 | 178 | 220 | 715 | 165 | 283 | 440 | 395 | 363 | 12-22 | 440 | 395 | 363 | 12-22 | 78 |
350 | 14 | 190 | 245 | 814 | 175 | 334 | 490 | 445 | 413 | 12-22 | 490 | 445 | 413 | 12-22 | 96 |
400 | 16 | 216 | 270 | 863 | 175 | 334 | 540 | 495 | 463 | 16-22 | 540 | 495 | 463 | 16-22 | 130 |
450 | 18 | 222 | 297 | 918 | 175 | 334 | 595 | 550 | 518 | 16-22 | 595 | 550 | 518 | 16-22 | 142 |
500 | 20 | 229 | 322 | 1016 | 210 | 425 | 645 | 600 | 568 | 20-22 | 645 | 600 | 568 | 20-22 | 191 |
600 | 24 | 267 | 377 | 1128 | 210 | 425 | 755 | 705 | 667 | 20-26 | 755 | 705 | 667 | 20-26 | 230 |
700 | 28 | 292 | 430 | 1233 | 210 | 425 | 860 | 810 | 772 | 24-26 | 860 | 810 | 772 | 24-26 | 250 |
800 | 32 | 318 | 487 | 1344 | 210 | 425 | 975 | 920 | 878 | 24-30 | 975 | 920 | 878 | 24-30 | 320 |
900 | 36 | 330 | 537 | 1560 | 320 | 620 | 1075 | 1020 | 978 | 24-30 | 1075 | 1020 | 978 | 24-30 | 410 |
1000 | 40 | 410 | 587 | 1660 | 320 | 620 | 1175 | 1120 | 1078 | 28-30 | 1175 | 1120 | 1078 | 28-30 | 510 |
1200 | 48 | 470 | 687 | 1890 | 320 | 620 | 1375 | 1320 | 1280 | 32-30 | 1405 | 1340 | 1295 | 32-33 | 720 |
1400 | 56 | 530 | 760 | 2670 | 575 | 714 | 1575 | 1520 | 1480 | 36-30 | 1630 | 1560 | 1510 | 36-36 | 1270 |
1600 | 64 | 600 | 895 | 2810 | 575 | 714 | 1790 | 1730 | 1690 | 40-30 | 1830 | 1760 | 1710 | 40-36 | 1730 |
1800 | 72 | 670 | 995 | 3020 | 575 | 714 | 1990 | 1930 | 1890 | 44-30 | 2045 | 1970 | 1918 | 44-39 | 2750 |
2000 | 80 | 760 | 1095 | 3220 | 656 | 810 | 2190 | 2130 | 2090 | 48-30 | 2265 | 2180 | 2125 | 48-42 | 3050 |
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006
