Product Name: Vacuum Valve, Butterfly Valve, 6 Inch, Stainless Steel
Size: DN150 (6 Inches)
Material: Stainless Steel
Suitable Pressure: 105 ~ 1.3 x 10-5 Pa
Leakage of Valve: ≤1.3 x 10-6 Pa·L/S
Suitable Temperature: -25 ~ +80℃（Sealing: Buna-N Rubber)，-30 ~ +150℃(VITON)
Standard of Flanged: JB919, GB6070
These vacuum butterfly valves provides a low-cost alternative to bellows sealed gate valve, and it's easily actuate from the fully-closed position to fully open with only a quarter turn of the handle, pneumatic actuator or electric actuator. A patented design allows the sealing disk to center itself when closing, with even pressure around the VITON or O-ring seal. This design also helps to lower the amount of scuffing or rolling of the O-ring. Quarter-turn actuation, small footprint and shortest possible gas path make manual vacuum butterfly valves the preferred choice for many applications.