概述；设计与制造标准：●设计与制造：GB12234●法兰尺寸：JB/T79GB9113●压力温度：GB9131●结构长度：GB12221●对焊连接尺寸：---●检验与试验：GB13927B41HW型保温闸阀安装尺寸及重量：GB1.6MpaDN40506580100125150200250300L200250265280300325350400450500H3103553754355006156758159701145D0200240240280300320360400450560GB2.5MpaDN40506580100125150200250300L200250265280300325350400450500H3103553754355006156758159701145D0240240280300320360400450560640)