UL 448 2007 消防服务用离心固定泵Centrifugal Stationary Pumps for Fire-Protection Service.pdf

ul,UL标准,消防,美国保险商实验室,美标,其他规范
文档页数:24
文档大小:871.12KB
文档格式:pdf
文档分类:其他规范
上传会员:
上传日期:
最后更新:

UL448 Centrifugal Stationary Pumps for Fire-Protection Service UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL june8,2007-ul448 Underwriters Laboratories Inc .( UL) 333 Pfingsten Road Northbrook .60062-2096 UL Standard for Safety for Centrifugal Stationary Pumps for Fire-Protection Service ,UL 448 Tenth Edition ,Dated June 8 .2007 SUMMARY OF TOPICS This New Edition of ANSI /UL448 includes the following changes : Change scope section to reference centrifugal pumps for fire protection service Clarification of which devices are required to be supplied with each pump . Revise 7.2 to indicate that provisions for feet or a fabricated support ( base)are to be provided by the pump manufacturer . Clarification of criteria related to the construction of the discharge head for a vertical turbine pump . Clarification of which metals are accepted as being corrosion resistant without further testing . Clarification that the term maximum working pressure denotes the maximum pressure developed at the discharge flange...

资源链接请先登录(扫码可直接登录、免注册)
十年老网站,真实资源!
高速直链,非网盘分享!浏览器直接下载、拒绝套路!
本站已在工信部及公安备案,真实可信!
手机扫码一键登录、无需填写资料及验证,支持QQ/微信/微博(建议QQ,支持手机快捷登录)
①升级会员方法:一键登录后->用户中心(右上角)->升级会员菜单
②注册登录、单独下载/升级会员、下载失败处理等任何问题,请加客服微信
不会操作?点此查看“会员注册登录方法”

投稿会员:匿名用户
我的头像

您必须才能评论!

手机扫码、免注册、直接登录

 注意:QQ登录支持手机端浏览器一键登录及扫码登录
微信仅支持手机扫码一键登录

账号密码登录(仅适用于原老用户)