GATE WITH TURNING LOCKING UNIT Russian patent published in 2002 - IPC

FIELD: valves; applicable in regulation and shutoff of liquid or gas flows through technical pipeline system. SUBSTANCE: gate with turning locking unit has body assembled of two covers secured to each other by fastening members. Three locking members from ceramic or other material with through ports are installed in body cavity. Locking members contact one another by their end precision surfaces. Extreme locking members are installed in body cavity immovable in tangential direction relative to body. Middle locking member is installed for turning by drive relative to body. Extreme locking members are made in the form, for instance, of truncated cones. Cones large bases face the middle locking member. Formed of small cones bases are areas on which membranes with flexible links installed and secured by their one ends to said areas, and by their other ends, to body cover sockets. The invention provides for normal operation of gate at temperatures of 400-500 C with preservation of tightness in joints and ecological safety of environment. EFFECT: improved design. 4 cl, 2 dwg