工作条件

   阀门要求的标准：GB/T 12235—2007石油、石化及相关工业用钢制截止阀和升降式止回阀

   阀门安装的位置和要求功能：                                                    

   阀门的公称尺寸：                       阀门的压力等级：                       

   最高工作压力：                         最大压差：                             

   最高工作温度：                         最低工作温度：                         

   使用介质及组分：                                                              

阀门结构形式

   阀门的类型：截止阀            升降式止回阀            截止止回阀              

   结构形式：直通式            阶梯式            角式            Y型            

   介质流动方向：压力从阀瓣下端进入             压力从阀瓣上端进入               

结构长度和端部连接

   结构长度的要求：                                                            

   进口管：外径（OD）               内径（ID）               材质               

   连接方式：法兰或焊接                                                           

   法兰的要求：平面、凹面或环接                                                  

   焊接端形状和技术要求：                                                        

阀门零件的材料

   阀体：       阀盖：         阀瓣：         密封面：         阀杆：            

   填料：       螺柱：         阀体、阀盖连接垫片：                              

   其他：                                                                        

阀门的操作要求

   需要的操作机构（电动、液动、气动、齿轮传动等）：                               

   尺寸限制或其他的说明：                                                         

   需要锁紧装置：                          何种形式：                            

其他要求

   承压元件是否需抗硫处理：                                                      

   放泄装置、旁通装置的要求：                                                     

   需要的涂漆和涂层：                                                            

   要求提供的文件：                                                              

   其他要求说明：