BERMAD Irrigation WW-700 Series Pressure Reducing Pressure Reducing Valve WW-720 ■ Flow and leakage reduction ■ Cavitation damage protection ■ Throttling noise reduction ■ Burst protection ■ System maintenance savings The Model 720 Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure. Major Additional Features Line pressure driven – Independent operation UL Listed for fire protection – FP-720-UL In-line serviceable – Easy maintenance Double chamber design Moderated valve reaction Solenoid control & check valve – 720-25 Protected diaphragm Proportional – 720-PD Automatic regulation override – 720-09 Flexible design – Easy addition of features Variety of accessories – Perfect mission matching High sensitivity pilot – 720-12 "Y" or angle, wide body – Minimized pressure loss Emergency pressure reducing valve – 720-PD-59 Semi-straight flow – Non-turbulent flow Downstream over pressure guard – 720-48 Stainless Steel raised seat – Cavitation damage resistant Electrically selected multi-level setting – 720-45 Obstacle free, full bore – Uncompromising reliability Electronic multi-level setting, Type 4T – 720-4T V-Port Throttling Plug – Low flow stability Electronic pressure reducing valve – 728-03 See relevant BERMAD publications.

BERMAD Irrigation WW-700 Series Pressure Reducing Operation The Model 720 is a pilot controlled valve equipped with an adjustable, 2-Way pressure reducing pilot. The needle valve [1] continuously allows flow from the valve inlet into the upper control chamber [2]. The pilot [3] senses downstream pressure. Should this pressure rise above pilot setting, the pilot throttles, enabling pressure in the upper control chamber to accumulate, causing the main valve to throttle closed, decreasing downstream pressure to pilot setting. Should downstream pressure fall below pilot setting, the pilot releases...

BERMAD Irrigation WW-700 Series Pressure Reducing Typical Applications Pressure Reducing System for Municipal Networks Network design requires establishing various pressure zones due to topography, distances, demands, energy costs, reservoir availability, etc. The pump supplies water to the network and to the reservoir. System pressure is too high for the residential neighborhood, requiring a pressure reducing system. Pressure Reducing System – Typical Installation Pressure Reducing Valve Model 720 Relief Valve Model 73Q By-Pass Pressure Reducing Valve Model 720 In addition to the Model 720 Pressure...

BERMAD Irrigation WW-700 Series WW-720 For full technical details, refer to Engineering Section. Pressure Reducing Technical Data Flow Chart Data is for Y-pattern, flanged, PN16 valves Weight is for PN16 basic valves “C” enables removing the actuator in one unit “L”, ISO standard lengths available For more dimensions and weights tables, refer to Engineering Section Flow Rate - m3/h Data is for Y-pattern, flat disk valves For more flow charts, refer to Engineering Section Main Valve Control System Valve Patterns: “Y” (globe) & angle Size Range: 11/2–32” (40-800 mm) End Connections (Pressure Ratings):...