KF ball valves are quarter-turn, straight through flow valves that have a round closure element with matching rounded seats that permit uniform sealing stress. Vacuum ball valves are used to control gas flow into a vcuum chamber, isolate, vent, provide relief or control conductance. KF ball valves manufacturer is pleased to offer vacuum valve designed and manufactured in China. If you are looking for KF ball valves distributors, RubyVac is the best choice. RubyVac vacuum ball valves supplier understand the need for various valves on your vacuum systems so we provide a range of state of the kf ball valves to accommodate your every need.