Series ZWB999 Flow Measurement Valves are designed for applingcation on low or medium flow ate HVAC units. Their compact size allow for easy nstallation 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.
Series ZWB999 valves provide positive , eliminatin the need ofr a separate serveice valve. The solder style ZWB999's may be installed without disassembly, saving costly installatin 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.
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