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WW-9PM-MV

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Pressure Management Hydrometer Flow Compensated Pressure Reducing Hydrometer ■ Flow and leakage reduction ■ Cost effective installation ■ Fully self operated ■ Burst prevention ■ Extends system service life ■ Environmentally efficient ■ Water and energy saving The BERMAD Model 9PM integrates a vertical turbine Woltman-type water meter with a diaphragm actuated hydraulic control valve. The 9PM is a Flow Compensated Pressure Reducing hydrometer that automatically and continuously optimizes downstream pressure, correlating valve setting with demand. Major Additional Features ■ Downstream over pressure guard - 9PM-48 ■ Hydraulic override - 9PM-09 ■ Pressure sustaining - 923-PM ■ Flow control - 972-PM Features and Benefits ■ Self contained hydro-mechanical □ Does not rely on electrical power supply □ Does not require additional pipeline accessories ■ Integrated “All-in-One” Control Valve □ Saves space, cost and maintenance ■ Internal Inlet & Outlet Flow Straighteners □ Saves on straightening distances □ Maintains accuracy ■ Simple design □ Does not require specialist commissioning □ Fits all “sites” ■ V-Port throttling plug □ Very stable at low flow □ Increased valve travel ■ Magnetic Drive with Sealed Register □ Water-free gear train mechanism □ Reed-switch and Opto pulse-generating modes □ Various pulse combinations ■ In-line serviceable - Easy maintenance

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900 Series Operation The model 9PM Flow Compensated Pressure Reducing Hydrometer is a pilot controlled hydrometer equipped with an adjustable, 2-way pressure reducing pilot linked to an automatically adapting flow compensating pressure adjusting system. The restriction [1] continuously allows flow from the hydrometer inlet into the control chamber [2]. The pilot [3] senses downstream pressure. Should this pressure rise above pilot setting, the pilot throttles, enabling pressure in the control chamber to accumulate, causing the hydrometer to throttle closed, decreasing downstream pressure to...

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BERMAD Waterworks 900 Series Pressure Management A well-planned pressure management program can significantly reduce not only volumes of real loss, but also maintenance costs by reducing occurrence of bursts and thereby extending the life of the system. Standard installation: Fix Outlet PRV with Flow Meter Pressure Management Hydrometer Model 9PM Fixed Outlet PRVs are set to maintain a constant low downstream pressure, ensuring sufficient pressure at the systems critical point during peak demand (when line friction head loss is highest). The shaded area represents the hours and levels when...

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Technical Data Size Range: DN40-250; 1%-10” Connections Standard & Pressure Ratings: Flanged: ISO 7005-2 (PN10 & 16) ANSI B16.42 (Class 150) Threaded: Rp ISO 7/1 (BSP.P); NPT Others: Available on request Valve Patterns: Globe & Angle Working Temperature: Water up to 50°C; 122°F Pulse Options: Reed Switch Pulse Per: 10 liter, 100 liter, 1m3, 10m3 1, 10, 100, 1000 US gallon Opto Electric Pulse Per: 1 liter, 10 liter 0.1, 1 US gallon For pulse per size selection and combined pulses options refer to 900 series engineering section or ordering guide Pulse Electric Data: Reed Switch: Switching...

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