对修订《建筑给水排水设计规范》的思考

On Revision of the Water and Drainage Design Norm for Building

作者认为《建筑给水排水设计规范》应反映缺水的国情 ,体现节水的国策。建议进一步明确设计所选水表及表前阀门的质量要求和水表的设置要求 ;明确控制超压出流的要求 ;

The authors think that the Water and Drainage Design Norm for Building will be revised to announce the actuality of water resources shortage and the national policy of water saving in this country. Some guidelines have to be stressed, for example the quality and installation requirements of water meter and pre valve before it as well as clear requirements to control over pressure discharge. Also the authors propose that hot water circulation might be retentive in vertical mains of central hot water system.