仪表调节阀及执行器安装作业指导书编制：审核：批准：1编制依据及适用范围....................................................................................................-1-1.1编制目的.....................................................................................................................-1-1.2编制依据.....................................................................................................................-1-1.3适用范围.....................................................................................................................-1-2作业内容及流程............................................................................................................-1-2.1气动执行器................................................................................................................-2-2.2气动执行机构............................................................................................................-2-2.3控制机构....................................................................................................................-3-2.3.1调节阀的类型........................................................................................................-3-2.3.2调节阀的流向........................................................................................................-4-2.3.3调节阀的流量特性................................................................................................-4-2.3.4调节阀的参数........................................................................................................-6-2.3.5气动薄膜调节阀的作用方式................................................................................-7-2.3.6气动薄膜调节阀的安装........................................................................................-8-2.3.6.1安装前的检查....................................................................................................-8-2.3.6.2安装地点的确定..............................................................
