Manual Ventilation Butterfly Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Manual ventilation butterfly valves
The introduction of product
TD41W handle operating ventilation butterfly valve is manufactured by welded steel plate, with the features of short structural dimensions, light weight, easy to install and so on. The driving torque of TD41W handle operating ventilation butterfly valve is small, open and close is flexible, and easy to operate. Body has sealing collar, and there is no visible gap between the sealing, the leakage rate is small. The expansion gap between disc and body is large and can prevent the block phenomenon caused by thermal expansion and cool contraction. TD41W handle operating ventilation butterfly valve can be equipped with a variety of driving devices, such as manual devices, turbine drive devices, acutating devices, electric devices. Ventilation butterfly valve is widely used in metallurgy, petrochemical, power, building materials, mining and other industrial pipelines, controls or regulates the gas medium.
Dimensions & constructral diagram
Manual ventilation butterfly valve constructral diagram(pic1)
Manual ventilation butterfly valve constructral diagram(pic2)
Main technical parameter
| nominal pressure | 0.05MPa | suitable temperature | -30℃～350℃ |
| intensity test | 0.1MPa | applicable medium | hot-cold wind, smoke |
| medium flow | 25m/s | leakage rate | 3％ |
The materials of main parts
| part name | body | disc | shaft |
| materials | carbon steel | carbon steel | carbon steel,stainless steel |
The main external and connection dimensions of TD41W(unit：mm)
| DN | D | D1 | L | L1 | n-Фd | b | H1 |
| 150 | 240 | 210 | 100 | 377 | 8-12 | 8 | 250 |
| 200 | 290 | 260 | 100 | 426 | 8-12 | 8 | 250 |
| 250 | 345 | 310 | 120 | 485 | 8-12 | 10 | 350 |
| 300 | 405 | 370 | 120 | 539 | 8-14 | 10 | 350 |
| 350 | 455 | 420 | 140 | 539 | 12-18 | 10 | 350 |
| 400 | 505 | 470 | 140 | 652 | 12-18 | 10 | 450 |
| 450 | 570 | 530 | 160 | 781 | 16-18 | 10 | 450 |
| 500 | 620 | 580 | 160 | 835 | 16-18 | 10 | 450 |
| 600 | 720 | 680 | 180 | 946 | 16-18 | 12 | 550 |
| 700 | 820 | 780 | 180 | 1044 | 16-18 | 12 | 550 |
| 800 | 920 | 880 | 200 | 1159 | 16-18 | 12 | 550 |
