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    [{"ID":"9680645","Picture":"2/20190605/636953256204410413158.jpg","PictureDomain":"img68","Name":"立式静音止回阀","Type":"CVKR型","Descrip":"上明牌立式静音止回阀,大口径静音止回润采用符合水力学的轮廓设计取得较佳的流线型水路内部附有导流体的设计能保证最小的压力损失。静音式止目阀安装于水泵出水口处可在水流倒流前先行快速关闭避免产生水锤、水击声和破坪性冲击以达到静音、防止倒流和保护设备的目的。广泛用于给排水、消防、暖通、工业等系统。","CompanyName":"上海明精防腐阀门制造有限公司","CompanyID":"18576","MarketPrice":"-1","PsOrder":"2810","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"168","FrontShow":"0","IsCharges":"1","Year":"12","StarNum":"4","UpdateAndClientSort":"108639185","StandUrl":"/st18576","UpdateTime":"2019/6/5 10:25:43","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"0","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"20350","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"8321045","Picture":"2/20110322/634364010428734925.jpg","PictureDomain":"img45","Name":"H71对夹升降式止回阀","Type":"","Descrip":"结构及尺寸
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    ","CompanyName":"上仪集团-上海仪表集团公司中心","CompanyID":"48903","MarketPrice":"0.1","PsOrder":"2550","PgID":"91","MaxOrder":"3","CityID":"394","City":"上海","Address":"上海","PropertysValue":"","HitNumber":"202","FrontShow":"0","IsCharges":"1","Year":"10","StarNum":"3","UpdateAndClientSort":"107640374","StandUrl":"/st48903","UpdateTime":"2017/7/11 19:34:14","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"1778","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 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    销售:,61400728
    询价传真:,61400729

    ","CompanyName":"上仪集团-上海仪表集团公司中心","CompanyID":"58460","MarketPrice":"10","PsOrder":"2550","PgID":"91","MaxOrder":"3","CityID":"394","City":"上海","Address":"上海","PropertysValue":"","HitNumber":"269","FrontShow":"0","IsCharges":"1","Year":"9","StarNum":"3","UpdateAndClientSort":"106848917","StandUrl":"/st58460","UpdateTime":"2016/1/9 4:37:06","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"1778","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"1794491","Picture":"2/20100916/634202352465468750.jpg","PictureDomain":"img43","Name":"升降式止回阀H41 ","Type":"","Descrip":"升降式止回阀H41

    销售:,61400728
    询价传真:,61400729

    ","CompanyName":"上仪集团-上海仪表集团公司中心","CompanyID":"58459","MarketPrice":"10","PsOrder":"2550","PgID":"91","MaxOrder":"3","CityID":"394","City":"上海","Address":"上海","PropertysValue":"","HitNumber":"254","FrontShow":"0","IsCharges":"1","Year":"9","StarNum":"3","UpdateAndClientSort":"106834657","StandUrl":"/st58459","UpdateTime":"2015/12/30 6:57:31","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"1778","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"8342640","Picture":"2/20180402/636582750206484580728.jpg","PictureDomain":"img50","Name":"对夹升降式止回阀","Type":"H71","Descrip":"H71对夹升降式止回阀的体积流量与压力降关系:
    水的当量体积流量Vw与实际流体的体积流量v按下式换算:
    公式图
    式中:Vw一水的当量体积流量.l/s;
    P*体密度,kg/m3v一实际流体的体积流量,I/s;
    v一实际流体的体积流量,I/s。","CompanyName":"上海明精防腐阀门制造有限公司","CompanyID":"18576","MarketPrice":"-1","PsOrder":"2810","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"378","FrontShow":"0","IsCharges":"1","Year":"12","StarNum":"4","UpdateAndClientSort":"108021651","StandUrl":"/st18576","UpdateTime":"2018/4/2 14:11:54","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"0","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"20350","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"8321021","Picture":"2/20110322/634364006637026829.jpg","PictureDomain":"img45","Name":"H41升降式止回阀","Type":"","Descrip":"H41升降式止回阀选用于公称压力PN1.6~6.4MPa,工作温度-29~550℃的石油、化工、火力电站等各种工况的管路上。适用介质为:水、油品、蒸汽等。","CompanyName":"上海仪欣阀门有限公司","CompanyID":"51852","MarketPrice":"-1","PsOrder":"","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"187","FrontShow":"0","IsCharges":"1","Year":"10","StarNum":"5","UpdateAndClientSort":"107994432","StandUrl":"/st51852","UpdateTime":"2018/3/14 16:32:23","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"0","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"1759","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"7709592","Picture":"2/20170717/636358830518730189566.jpg","PictureDomain":"img60","Name":"H41F46衬氟止回阀升降式止回阀","Type":"","Descrip":"衬氟止回阀是一种依靠介质本身的流动而自动启闭阀瓣用来阻止介质逆向流动的自动防腐阀门,又称逆止阀或单向阀。H41F46衬氟止回阀升降式止回阀","CompanyName":"浙江三精阀门有限公司","CompanyID":"21901","MarketPrice":"300","PsOrder":"2437","PgID":"88","MaxOrder":"3","CityID":"101","City":"温州市","Address":"温州市","PropertysValue":"","HitNumber":"202","FrontShow":"0","IsCharges":"1","Year":"11","StarNum":"5","UpdateAndClientSort":"107649066","StandUrl":"/st21901","UpdateTime":"2017/7/17 20:26:08","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"4343","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"7703054","Picture":"2/20170714/636356463105684047814.jpg","PictureDomain":"img60","Name":"【H71H】对夹升降式止回阀","Type":"H71H","Descrip":"【H71H】对夹升降式止回阀不锈钢对夹式升降式止回阀的体积流量与压力降关系:
    水的当量体积流量Vw与实际流体的体积流量v按下式换算:
    公式图
    式中:Vw一水的当量体积流量.l/s;
    P*体密度,kg/m3v一实际流体的体积流量,I/s;
    v一实际流体的体积流量,I/s。","CompanyName":"上海明精防腐阀门制造有限公司","CompanyID":"18576","MarketPrice":"-1","PsOrder":"2810","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"281","FrontShow":"0","IsCharges":"1","Year":"12","StarNum":"5","UpdateAndClientSort":"107644500","StandUrl":"/st18576","UpdateTime":"2017/7/14 16:20:58","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"0","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"20350","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"1687871","Picture":"2/20110322/634364006637026829.jpg","PictureDomain":"img45","Name":"升降式止回阀","Type":"H41","Descrip":"升降式止回阀选用于公称压力PN1.6~6.4MPa,工作温度-29~550℃的石油、化工、火力电站等各种工况的管路上。适用介质为:水、油品、蒸汽等","CompanyName":"上海仪欣阀门有限公司","CompanyID":"51852","MarketPrice":"-1","PsOrder":"","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"462","FrontShow":"0","IsCharges":"1","Year":"10","StarNum":"4","UpdateAndClientSort":"107639232","StandUrl":"/st51852","UpdateTime":"2017/7/11 0:32:18","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"1759","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"56766","Picture":"2/2008/200761393555797.jpg","PictureDomain":"img42","Name":"德标升降式止回阀","Type":"","Descrip":"德标升降式止回阀","CompanyName":"上海明精防腐阀门制造有限公司","CompanyID":"2823","MarketPrice":"-1","PsOrder":"2098","PgID":"91","MaxOrder":"3","CityID":"3","City":"上海市","Address":"上海市","PropertysValue":"","HitNumber":"2257","FrontShow":"0","IsCharges":"1","Year":"14","StarNum":"3","UpdateAndClientSort":"107635862","StandUrl":"/st2823","UpdateTime":"2017/7/8 16:22:17","TodayIsUpdate":"0","AttType":"0","AttState":"3","AttAddType":"1","IsSeoCreate":"","IsOnlinePay":"0","MinPrice":"0.00","MaxPrice":"0.00","ClassID":"2221","productonlinetime":"1900/1/1 0:00:00","OnLineDate":"1900/1/1 0:00:00","DownLineDate":"1900/1/1 0:00:00","BrandPicDomin":"","BrandPicName":"","BrandProperty":"","PBrandID":"0","IsHadVideo":"0","VideoTime":"0","ShowPrice":"0.00"},{"ID":"1217759","Picture":"2/20100916/634202740905312500.jpg","PictureDomain":"img43","Name":"对夹升降式止回阀","Type":"","Descrip":"对夹升降式止回阀

    销售:,61400728
    询价传真:,61400729

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    产品特点:
    二、流体力学性能:
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    二、流体力学性能:
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    水的当量体积流量Vw与实际流体的体积流量v按下式换算:
    公式图
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    3、法兰型式及尺寸JB/T7994
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