采用的是上下分段軸，閥板的中間部位沒有高高凸起的軸梁，因而減少了閥板開啟后在通道 中間的阻擋面積。此軸比一般閥軸稍粗，耐壓力更強，閥板與軸的連接更穩(wěn)固。闕座采用的靠背 硫化橡膠的技術，當過于干燥的氣體和粉體時不易損壞閥座。
Adopt the top and bottom section shaft. The middle parts of the valve plate have no raised high beam of the axis and thus reduce the block area in the middle of channel after opening the valve plate. The shaft is a bit thicker than general valve shaft, and has stronger resistance to pressure. The connection of valve plate and shaft is more stable. The seat uses seat back with vulcanized rubber technology. In the case of too dry gas and powder, it is not easy to damage the seat.