High-speed controller and lever safety valve 高速调节器及柄式安全阀
Hand wheel, lever and spanner driving and safety valve, pressure reducing valve, traps overleap this symbol. 注:1、手轮、手柄和扳手传动以及安全阀、减压阀、疏水阀省略本代号。
Lever-type safety valve lever to rely mainly on the weight of the work force, but the lever-type safety valve size often limit the choice of scope. 杠杆式安全阀主要依靠杠杆重锤的作用力而工作,但由于杠杆式安全阀体积庞大往往限制了选用范围。