About energy economization, mainly introduced how new technologies and methods are used in utilizing of hydraulic head, decreasing pressure and quantity, setting of fire-fighting system, water pump, supplying of hot water etc.

• 关于节能，主要介绍了在给水管网水头的利用方面，减压节流问题方面，生活与消防系统设置方面，水泵方面，开水供应方面的节能新方法、新技术。