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172-bDZ Data Sheet

172-bDZ Data Sheet

172-bDZ Data Sheet

Product catalog summary
Overview: The BERMAD Flow Control and Pressure Reducing Valve, model IR-172-bDZ, is a hydraulically operated, diaphragm-actuated control valve designed to limit system demand and maintain constant downstream pressure. It is part of the 100 Series hYflow, known for its high flow capacity and low pressure loss.
Features and Benefits:
  • Hydraulic Flow Control: Driven by line pressure, it limits fill-up rates and prevents consumer over-demand, protecting downstream systems.
  • Adjustable Control: Features an adjustable servo flow pilot and a 2-way pressure reducing pilot for easy flow and pressure settings with low hysteresis.
  • Durable Design: Made from engineered plastic, it is resistant to chemicals and cavitation.
  • Innovative Valve Body: The hYflow ‘Y’ valve body offers ultra-high flow capacity with a "Look Through" design.
  • Advanced Diaphragm and Plug: The unitized flexible super travel (FST) diaphragm and guided plug ensure accurate regulation and smooth closing.
  • Space-Saving Sensor: An internal "Differential Pressure Duct" flow sensor with no moving parts simplifies installation.
Typical Applications:
  • Line Fill-Up Control
  • Pressure Reducing Systems
  • Multiple Independent Consumer Systems
  • Systems Subject to Varying Supply Pressure
Technical Specifications:
  • Valve Configurations & Sizes: Available in oblique and angle patterns, with sizes ranging from 2" to 6" (DN50 to DN150).
  • End Connections: Options include threaded, flanged, and grooved connections.
  • Pressure Rating: 10 bar (145 psi) with an operating range of 0.35-10 bar (5-145 psi).
  • Setting Range: 1-7 bar (15-100 psi), adjustable according to pilot spring.
  • Materials: Constructed from glass-filled nylon, with stainless steel springs and bolts, and plastic control accessories.
Flow Chart: The document includes a flow chart illustrating the relationship between flow rates (m3/h and gpm) and pressure differential (psi and bar) for various valve sizes.
Ordering Information: The document provides a detailed guide on how to specify the valve, including options for construction materials, end connections, and additional features.
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Catalog excerpts

172-bDZ Data Sheet-1

BERMAD Irrigation 100 Series h Yflow Flow Control & Pressure Reducing Flow Control and Pressure Reducing Valve IR-172-bDZ The BERMAD Flow Control and Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve that limits system demand and reduces downstream pressure to constant preset maximum values. Line Pressure Driven Hydraulic Flow Control Limits fill-up rate and consumer over-demand ❏ Protects downstream system Adjustable Servo Flow Pilot and 2-Way Pressure Reducing Pilot Controlled ❏ Very low hysteresis ❏ Easy flow and pressure setting Engineered Plastic Valve with Industrial Grade Design ❏ Highly durable, chemical and cavitation resistant hYflow ‘Y’ Valve Body with “Look Through” Design ❏ Ultra-high flow capacity - Low pressure loss Unitized Flexible Super Travel (FST) Diaphragm and Guided Plug ❏ Accurate and stable regulation with smooth closing ❏ Requires low actuation pressure ❏ Prevents diaphragm erosion and distortion Internal “Differential Pressure Duct” Flow Sensor ❏ No moving parts ❏ Saves space and simplifies installation ❏ Line Fill-Up Control Pressure Reducing Systems Multiple Independent Consumer Systems Systems Subject to Varying Supply Pressure [1] BERMAD Model IR-172-bDZ protects supply system from excessive flow, limits fill-up rate and consumer over-demand, and establishes reduced higher pressure zone. [2] BERMAD Solenoid Controlled Valve Model 210-N1 [3] BERMAD Pressure Reducer Model 1½”-PRV [4] BERMAD Vacuum Breaker Model ½”-ARV

 Open the catalog to page 1
172-bDZ Data Sheet-2

BERMAD Irrigation 100 Series h Yflow IR-172-bDZ For full technical details, refer to Engineering Section. Flow Control & Pressure Reducing Technical Specications Flow Chart Dimensions and Weights Pattern Size ∆P 2-Way Circuit "Added Head Loss", bar Technical Data Valve Congurations & Size: Oblique: 2, 2½, 3, 3L, 4 & 6”; DN50, 65, 80, 80L, 100 & 150 Angle: 3”; DN80 End Connections: Threaded: 2, 2½, 3 & 3”L; DN50, 65, 80 & 80L Flanged: 3, 3L, 4, & 6”; DN80, 80L, 100 & 150 Grooved: 6”; DN150 Pressure Rating: 10 bar; 145 psi Operating Pressure Range: 0.35-10 bar; 5-145 psi Setting Range: 1-7 bar;...

 Open the catalog to page 2

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