This product is related to this category:


Bermad Model 420 - 55 - 3 way Pressure Reducing Solenoid Valve

The Bermad Model IR-420-55-X Pressure Reducing Valve with Solenoid Control is a hydraulically operated, diaphragm actuated control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand and opens fully upon line pressure drop. The Bermad Model IR-420-55-X opens and shuts in response to an electric signal.


Features and Benefits

  • 3-Way Hydraulically Actuated PRV, Electrically Controlled On/Off
    - Projects downstream systems
    - Opens fully upon line pressure drop
    - Wide range of pressures and voltages
    - Normally Open, Normally Closed or Last Position
  • Advanced Glove Hydro-Efficient Design
    - Unobstructed flow path
    - Single moving part
    - High flow capacity
  • Fully Supported & Balanced Diaphragm
    - Requires low opening and actuation pressure
    - Excellent low flow regulation performance
    - Progressively restrains valve closing
    - Prevents diaphragm distortion
  • User Friendly Design
    - Easy pressure setting
    - Simple in-line inspection and service
[1] Bermad Model IR-420-55-X Opens in respond to an elecric signal establishing reduces pressure zone.
[2] Bermad Water Meter Modle WPH
[3] Bermad Air Relief Valve Model ARC-A-I-I

Typical Applications

  • Pressure Reducing stations
  • Flow and Leakage Reduction
  • Systems Subject to Varying Supply Pressure
  • Energy Saving Irrigation Systems
  • Source and "on Duty" Valves Management
  • Downhill Supply Lines
  • Pressure Zone Isolation

Technical Specifications

Dimensions and Weights

Bermad Model 420-55-X Pressure reducing valve - Dimensions and Weights

Technical Data

Technical Data

Patterns and Sizes: Globe: 3-16”; DN80-400 Angle: 3-4”; DN80-100

End Connections:

Pressure Rating: 16 bar; 232 psi

Operating Pressure Range: 0.5-16 bar; 7-232 psi

For lower pressure requirements, please contact us.

Setting Range: 1.5-16 bar; 22-232 psi

Setting ranges vary according to specific pilot spring. For more information please contact us.


Body and Cover:

Polyester Coated Cast or (10”; DN250 and larger) Ductile Iron

Spring: Stainless Steel

Diaphragm: Nylon fabric Reinforced NR with rugged insert

Bolts, Studs and Nuts: Zinc-Cobalt plated Steel

Control Accessories: Brass

Tubing and Fittings: Reinforced Plastic and Brass

Solenoid Voltage Range:

24VAC, 24VDC

Other voltages available

Flow Chart

Bermad Model 420 - 55 - X Pressure Reducing Valve - Flow chart


Bermad Model 420-55-X Pressure Reducing Valve - Operation

The Shuttle Valve [1] hydraulically connects the Solenoid [2] or the Pressure Reducing Pilot (PRP) [3] to the Valve Control Chamber [4]. When the solenoid is closed, the PRP commands the Valve to throttle closed should Downstream Pressure [P2] rise above setting, and to open when [P2] falls below setting. Should line pressure remain below setting - the Valve opens fully. In response to an electric signal, the solenoid switches, directing line pressure through the shuttle valve into the control chamber. This causes the Valve to shut.

How to Order

Please specify the requested valve in the following sequence: (for more options, please contact us.)

PDF Datasheets

PDF - Download Icon
Engineering Data*

2D CAD Drawing

PDF - Download Icon
Engineering Data*
* Note: For some products Manual or Engineering Data are available only upon request.

Cannot download file or do you need more information? Please contact us below.

Thank you! Your submission has been received!
We will contact you as soon as possible.
Oops! Something went wrong while submitting the form.

For more information or different sizing please contact us.

Product code

Bermad Model 420 - 55 - 3 way Pressure Reducing Solenoid Valve

Contact Us

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.