| nominal diameter | dn40~400 |
| nominal pressure | class 150lb～2500lb、pn16～pn420 |
| medium temperature | -29～250℃ |
| connection method | |
| valve cover form | |
| body material | wcb、cf8、cf8m |
| trim material | 304 st、316 st |
| flow characteristics | |
| leakage level | asme b16.104 v、vi |
modular and universal design, choose different internal parts design according to different working conditions; optimize the design of gas circuit control, quick opening and closing, avoid the compressor and pipeline damage caused by surge to ensure the safe and reliable operation of the fan; flow characteristics: linear, equal percentage, quick opening; high performance low fugitive combination packing to ensure reliable sealing of the stem.