TD41W handle-operated ventilation butterfly valve is made of welded steel plate, with the characteristics of short structure size, light weight and easy installation. TD41W handle-operated ventilation butterfly valve has small driving torque, flexible opening and closing, and easy operation. A sealing ring is set on the valve body, there is no visible gap between the sealing pairs, and the leakage rate is small. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent the jamming caused by thermal expansion and contraction. TD41W handle-operated ventilation butterfly valve can be equipped with a variety of drive devices, such as manual device, turbine transmission device, starting device, electric device. Ventilation butterfly valves are widely used in industrial pipelines such as metallurgy, petrochemical, electric power, building materials, and mining to control or regulate the medium gas.
| TD41W handle-operated ventilation butterfly valve main shape and connection dimensions |
| DN |
D |
D1 |
L |
L1 |
n-φd |
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 |
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