Plug valve WW-770-U

hydraulically-operatedflow controldistribution

The Model 770-U Flow Control Valve is a hydraulically operated, diaphragm actuated control valve that maintains pre-set maximum flow, regardless of fluctuating demand or varying system pressure. Product features & benefits •Line pressure driven – Independent operation •Hydraulic flow sensor (upstream installation) oNo moving parts oNo electronic components oNo need for flow straightening •In-line serviceable – Easy maintenance •Double chamber design oModerated valve reaction oProtected diaphragm •Flexible design – Easy addition of features •Variety of accessories – Perfect mission matching •“Y” or angle, wide body – Minimized pressure loss •Semi-straight flow – Non-turbulent flow •Stainless Steel raised seat – Cavitation damage resistant •Obstacle free, full bore – Uncompromising reliability •V-Port Throttling Plug – Low flow stability Typical Application Distribution Networks System design starts from expected flow range that determines major system components: Pump stations: Characteristics, location, quantity Supply lines: Layout, class, size Reservoirs: Location, volume, head Significant deviation from designed flow range might disrupt water supply or even damage system components. Appropriate design, placement, and use of the Model 770-U protects the system from excessive flow. When pressure reducing is also required, choosing the Model 772-U, instead of the Model 770-U, completes the solution.