Pneumatic high vacuum valve has the following advantages:

1, fluid resistance, FD-LOK Trunnion ball valves is the smallest of all valves in a fluid resistance, even reduced diameter valve, the fluid resistance is quite small.
2, valve switch quickly and easily, as long as the stem is rotated 90 °, Ball completed fully on or off action, it is easy to open and close fast.
3, good valve sealing performance. three way ball valves seat seals are generally manufactured using an elastic material such as polytetrafluoroethylene, easy to guarantee the seal, and valve sealing force with increasing media pressure increases.
4, valve stem seals and reliable. When the valve opening and closing the valve stem rotates only, so the stem packing seal can not easily be damaged, and the stem back seal sealing force increases media pressure increases.
5, ball valves open and close only 90 ° rotation, it is easy to achieve automatic control and remote control, stainless steel ball valve can be configured pneumatic devices, electrical equipment, hydraulic equipment, gas-liquid interaction devices or electro-hydraulic linkage.