Flow Control Pressure Reducing and Sustaining Hydrometer IR-975-55-RUX

The BERMAD Hydrometer Model IR-975-55-RUX integrates both a vertical turbine Woltman-type water meter and a hydraulically
operated diaphragm actuated control valve. Combining a Flow Meter and Main Valve, allows efficient irrigation control with an irrigation controller.
The IR-975-55-RUX provides three independent functions: It maintains pre-set maximum flow, reduces higher upstream pressure to lower
constant downstream pressure and sustains minimum pre-set upstream (back) pressure. The Hydrometer opens and shuts off in response to an
electric signal.

  • Integrated “All-in-One” control valve

-Saves space, cost and maintenance

  • Internal Inlet & Outlet Flow Straighteners

-Saves on straightening distances

-Maintains accuracy

  • Integrated Flow Metering Calibration Device
  • Simple in-Line Inspection and Service
  • Line Pressure driven

-Independent operation

-Limits fill-up rate and consumer over-demand

-Protects downstream system

-Prevents line emptying

  • Hydraulic flow sensor (Orifice)

-No moving parts

-No electronic components

-No need of flow straightening

  • Advanced control loop design

-Linear, accurate and stable modulation

-Convertible platform for vast number of applications

  • Easy on-site set point change
  • Electrical Open / Close command

-Adding main valve capabilities

Typical Applications

  • Downhill Pressurized Supply Lines
  • Multiple Independent Consumer Systems
  • Line Fill-Up Control Solution
  • Pressure Reducing Systems
  • Computerized Irrigation Systems
  • Flow Monitoring and Leakage Control


[1] BERMAD Model IR-975-55-RUX opens in respond to an

electric signal, prevents emptying of supply line, maintains

system designed flow and establishes reduced pressure zone.

[2] BERMAD Strainer Model 70-F
[3] BERMAD Combination Air Valve Model C30
[4] BERMAD Kinetic Air Valve Model A10

English IR-975-55-RUX Product Page