Special Hand Vacuum angle valves 25URS and 50URS are designed to seal the overlap of vacuum systems in the pressure range from 1h105 to 1.33 ? 10 5 Pa (760 to 1x10-7 mm Hg. Cent.).
Valves are consist of a body input bellow, nuts, hand wheel, cover. Valve body is welded structure and consists of a shell, seat, side and bottom ports. By the lower pipe valves are connected to a vacuum system for valves 50 URS by welding valves 25 URS - studs.