【摘要】 根据国内外钢制闸阀的有关标准 ,从压力 温度额定值、最小壁厚、阀盖与阀体中法兰连接、阀门密封副、接口尺寸及阀门的检验与试验等几方面进行了分析比较更多还原

【Abstract】 According to the relative domestic and international standards of steel gate valve,give analysis and comparison from nominal values of pressure temperature,minimum wall thickness,middle flange ends between body and bonnet,valve sealing couplings,connection dimensions,test and inspection of valves,and etc.更多还原