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Bermad - Model 420-55 - 2 Way Pressure Reducing Solenoid Valve

Bermad 420-55-2W - Product Image
Brand: Bermad
Category: Control Valves, 400 Series
Size Range:



40-80mm - Female Threaded BSP

80-300mm - Flanged

Engineering Data:

Bermad - Model 400 - Engineering Data

Product Description

The BERMAD Model 420-55 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 or varying upstream pressure. The BERMAD Model IR-420-55 opens and shuts in response to an electric signal.

Features and Benefits

  • Line Pressure Driven PRV, Electrically Controlled On/Off
    • Protects downstream systems
    • Wide range of pressures and voltages
    • Normally Open, Normally Closed or Last Position
  • Advanced Globe 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
Bermad - 420-55-2W - Features and Benefits

1. BERMAD Model IR-420-55 opens in response to an electric signal establishing
a reduced pressure zone.

2. BERMAD Water Meter Model WPH

3. BERMAD Air Relief Valve Model ARC-A-I-I

Typical Applications

  • Pressure Reducing Stations
  • Flow and Leakage Reduction
  • Cavitation Damage Protection
  • Source and “On Duty” Valves Management
  • Pressure Zone Isolation
  • Downhill Supply Lines
  • System Maintenance Savings

Technical Data


Bermad - 420-55-2W - Operation

The Needle Valve [1] continuously allows line pressure into the Control Chamber [2]. The Pressure Reducing Pilot [3] senses Downstream Pressure [P2], and throttles when it rises above setting. Pressure then accumulates in the control chamber causing the Valve to throttle closed, decreasing [P2] to the pilot setting. The pilot releases accumulated pressure when [P2] falls below the setting, thereby causing the Valve to modulate open. Closing the Solenoid [4] causes pressure in the control chamber to accumulate shutting off the Valve.


Body and Cover

  • Polyester Coated Cast or (DN250 and larger) Ductile Iron


  • Stainless Steel


  • Nylon fabric Reinforced NR with rugged insert

Bolts, Studs and Nuts

  • Zinc-Cobalt plated Stee

Control Accessories

  • Brass

Tubing and Fittings

  • Reinforced Plastic and Brass

Pressure Rating

  • 16 bar.

Operating Pressure Range

  • 0.5-16 bar.

For lower pressure requirements, consult Deeco.

Setting Range

  • 1.5-16 bar.

Setting ranges vary according to specific pilot springs. Please consult Deeco.

Patterns and Sizes

  • Globe: DN80-400
  • Angle: DN80-100

End Connections

  • 40-80mm - Female Threaded BSP
  • 80-400mm - Flanged
Bermad - 420-55-2W - End Connections

Bermad - 420-55-2W - End Connections

Technical Specifications

For technical specifications (Flow charts, valve characteristics, dimensions, etc.) - Please refer to the Engineering Data:

Bermad - Model 400 - Engineering Data

Due to the wide range of options available and criteria for correct model selection, pricing and configuration are available on application only.

Please consult with Deeco engineers for more information.

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