| 摘要 |
mechanical engineering. SUBSTANCE: by-pass valve has a body, input device with seat and gate with lever. By-pass valve is provided with double-arm L-shaped lever with counterweight. L-shaped lever is made for interaction with gate lever in closed position. Gate lever is provided with a cam for interaction with limit switch. The invention makes it possible to enhance safety of valve operation. EFFECT: enhanced reliability of construction. 3 dwg |
