安装说明书
Installation Instructions

1. 这种阀门应该有有资格证书的承包商按照当地有关规定和标准进行安装。这种阀门应该安装在具有足够的空间进行清洗、维修或调节的地方。
   The valve should be installed by a licensed contractor in accordance with local codes and ordinances. This valve should be installed where it is accessible with sufficient clearance for cleaning, service, or adjustment.
2. 在安装阀门之前，要确保管道末端经过铰孔，螺纹长度切割适中。
   Before installing the valve, be sure that the pipe ends are reamed and threads are cut to size.
3. 冲洗管线，清除可能损坏或堵塞阀门的所有疏松的氧化皮、污垢和其它外来物质。
   Flush the lines to remove all loose scale, dirt and other foreign matter that can damage or clog the valve.
4. 安装调节阀，使其阀体上的箭头指向流体流向。
   Install the regulator with the arrow on the body pointing in the direction of the flow.
5. 调节阀可以垂直安装或水平安装（朝上或超下）。
   Regulator may be installed vertically or horizontally (upright or inverted).
6. 启动 - 开启冷水供应系统，然后再开启热水供应系统。检查是否泄漏。
   Start Up — Open cold water supply then hot water supply. Inspect for leaks.

　　注：这种阀门应该进行年度检查，以确保最长的使用寿命和最好的性能。
　　注：25AUB-Z3适用于室外或坑内安装。
　　Note: The valve should be inspected annually to assure maximum life and performance.
　　Note: 25AUB-Z3 valves are suitable for outdoor or pit installations.

典型安装
Typical Installation

串联安装
Series Installation

如果很高的供应压力必须降低到很低的下游压力，则建议采用串联安装方式。逐步减低的压力避免出现啸声和噪音。
Series installations are recommended where very high supply pressure must be reduced to a very low downstream pressure. Reducing the pressure in stages eliminates whistling and noise.

并联安装
Parallel Installation

在高流量或低流量间歇性或偶然性出现的地方，建议采用并联安装。并联安装方式也用于应用不能出现中断的地方。
Parallel installations are recommended where high flow or low flow demand is intermittent/occasional. They are also used for installations where service cannot be interrupted.