J21W-320外螺紋針型閥J21W-320P
、設(shè)計(jì)制造:GB/T 12224-1989;JB/T 7747-1995TKZM-14智能脈沖控制儀TKZM-12,J21W-320外螺紋針型閥J21W-320P
2、連接形式:對(duì)焊式管接頭
3、結(jié)構(gòu)特征:錐面密封;浮動(dòng)閥瓣TKZM-14智能脈沖控制儀TKZM-12,J21W-320外螺紋針型閥J21W-320P
4、閥門檢驗(yàn)和試驗(yàn):GB/T 13927-1992雙金屬溫度計(jì)
5、材料:碳鋼按GB/T 12228-1989的規(guī)定、不銹鋼GB/T 1220-1989的規(guī)定
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TKZM-04
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