According to the structural feature of parallel single disk gate valve,the strength and rigidity of body will be calculated with finite element method,and with cylindroid shell theory.

• 根据主闸阀结构特点,分别用有限元法和椭圆柱板壳理论公式计算了阀体的强度与刚度,并进行了分析对比,同时对闸板的刚度进行了校核。