系列ZWB999流量测量阀适用于应用在低流量或中流量暖通空调装置上。这种紧凑的结构可以容易地安装在拥护的管道部件中。
系列ZWB999的球型结构，广泛的节流范围，以及大型指示板，都适用于高度精确流量测量，甚至在很低的流量范围内也是如此。
系列ZWB999积极记忆功能便于观察，接近和操作，促进系统平衡和流量测量。这些阀门还是双向，所以不会出现将阀门安装在错误方向的情况。Series ZWB999 Flow Measurement Valves are designed for applingcation on low or medium flow rate HVAC units. Their compact size allows for easy installation and use in crowded piping compartments. The ZWB999's ball-type design extended throttling range, and large indicator plate. Make for highly accurate flow measurement; even in very low flow ranges. The ZWB999's positive memory feature is easy to see, access, and operate;facilitating system balancing and flow measurement these valves are also bi-directional. So there is no chance of installing the valve in the incorrect flow direction.

系列ZWB999阀门具有绝对气密性关闭功能，因此不需要另外配置独立的辅助阀。焊接类型的ZWB999可以适用于不需要拆卸的安装，节省昂贵的安装时间。这些阀门还具有防吹出保护阀杆。操作，误用，腐蚀或磨损都不会造成阀杆“吹出”，造成高压热水或冷凝水的泄露。
Series ZWB999 valves provide positive , eliminating the need for a separate serveice valve. The solder style ZWB999's may be installed without disassembly, saving costly installation time. These valves are also provided with blowout proof stems. Use , misuse, corrosion,or wear will not allow the stem to "blowout,: releasing pressurized hot or chilled water.