Pneumatic Vent Butterfly Valve

Pneumatic Vent Butterfly ValveClick to view the big picture
Short Description
 Model No.: TD641W    Hits: 1381
China Vent Butterfly Valve manufacturer Xinhai offers carbon steel, stainless steel Pneumatic Vent Butterfly Valves for gas, oil use etc, DN300-4000.

Key Specifications / Features

Pneumatic vent butterfly valve, made of steel plate through welding, has the advantages of small size, light weight, convenient utilization. For small torque, it is easy to open or close the valve. Body has oil seal retainer. There is large expansion clearance between the disc and body, which can avoid sticking caused by thermal expansion and contraction. The valve can be equipped with varieties of actuating device, such as handwheel, gear box, electric actuator and pneumatic actuator.Vent butterfly valve is widely used in metallurgy, petroleum and other industries, to regulate gas.
 
Parameter 
Nominal pressure(MPa) 0.05MPa Medium temperature -30℃~-350℃
Strength test 0.1MPa Applicable medium Cold or hot air, smoke
Medium flow rate 25m/s Leakage rate 3%

Components materials
Components  Valve body Valve plate Valve shaft
Materials  Carbon steel Carbon steel Carbon steel, stainless steel 
 
Connection Dimensions(unit: mm)
DN D D1 L L1 L2  n-Фd b
300 405 370 120 716 220 8-12 10
350 455 420 140 786 240 8-14 10
400 505 470 140 924 270 12-18 10
450 570 530 160 999 295 12-18 10
500 620 580 160 1079 325 12-18 10
600 720 680 180 1140 380 16-18 12
700 820 780 180 1240 430 16-18 12
800 920 880 200 1350 490 16-18 12
900 1040 990 200 1450 540 16-18 14
1000 1140 1090 220 1550 590 20-18 14
1100 1240 1190 220 1800 640 20-18 14
1200 1340 1290 240 1900 690 20-18 14
1300 1440 1390 240 2020 760 20-18 16
1400 1540 1490 260 2120 810 24-18 16
1500 1640 1590 260 2220 860 24-18 16
1600 1740 1690 280 2390 980 24-18 16
1700 1840 1790 280 2590 1030 28-22 16
1800 1940 1890 300 2709 1096 28-22 16
1900 2040 1990 300 2826 1146 32-22 16
2000 2150 2090 320 2926 1196 32-26 16
2200 2360 2300 340 3126 1296 36-26 16
2400 2560 2500 360 3326 1396 36-26 18
2600 2760 2700 380 3526 1496 40-26 18
2800 2960 2900 400 3726 1596 40-26 18
3000 3190 3110 400 4098 1698 44-30 18
3200 3390 3310 440 4338 1798 44-30 20
3400 3590 3510 440 4578 1898 48-30 20
3600 3790 3710 480 4780 1998 48-30 20
3800 4000 3910 480 5000 2098 52-30 22
4000 4210 4120 520 5200 2210 52-30

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