Product description :
Once the valve disc from the closed position to move away, it is no longer between the seat and disc sealing surface contact, so it’s sealing surface mechanical wear is very small, so the sealing performance is reliable.
The opening and closing of the valve disc is small, the sealing surface can withstand multiple opening and closing, so it is very suitable for occasions requiring frequent switching.
Characteristic ：
- Open the height of the valve seat diameter is generally only L / 4, so much smaller than the gate valve.
- In the process of opening and closing, the friction between the valve flap and the valve body sealing surface is smaller than that of the gate valve, thus the wear resistance.
- Usually in the valve body and the valve flap is only one sealing surface, so the manufacturing process is better, easy maintenance. However, the shortcomings of the valve can not be ignored. The main disadvantage is the flow resistance coefficient is relatively large, resulting in pressure loss, especially in the hydraulic device, the pressure loss is particularly evident.
Working pressure : 1.6Mpa
Sealing pressure : 1.6MPa
Appearance quality : uniform, smooth, no oil
Working medium : water, oil, gas
Working temperature : -20 degrees C = t = 150
Flange compliance : GB9113.1 standard
