| Brand: | Bermad |
| Category: | Control Valves, 400 Series |
| Size Range: | 40-300mm |
| Connection: | 40-80mm - Female Threaded BSP 80-300mm - Flanged |
| Engineering Data: |
Product Description
The BERMAD Model 472-55 is a hydraulically operated, diaphragm-actuated control valve that limits demand and reduces downstream pressure to constant preset maximum values. It either opens or shuts in response to an electric signal.
Features and Benefits
- Line Pressure Driven, Electrically Controlled On/Off
- Limits fill-up rate and consumer over-demand
- Protects downstream system
- Advanced Globe Hydro-Efficient Design
- Unobstructed flow path
- Single moving part
- High flow capacity
- Fully Supported & Balanced Diaphragm
- Requires low actuation pressure
- Excellent low-flow regulation performance
- Progressively restrains valve closing
- Prevents diaphragm distortion
- Hydraulic Flow Sensor (upstream installation)
- No moving parts
- No need for flow straightening
- User-Friendly Design
- Easy pressure setting
- Simple in-line inspection and service
1. BERMAD Model IR-472-55-bKU opens in response to electric signal, limits over-demand, and controls laterals and distribution line fill-up while reducing operating pressure
2. BERMAD Vacuum Breaker Model ½"-ARV
Typical Applications
- Computerized Irrigation Systems
- Remote and/or Elevated Plots
- Multiple Independent Consumer Systems
- Line Fill-Up Control Solutions
- Pressure Reducing Systems
- Distribution Centers
Technical Data
Operation
Shuttle Valve [1] (SV-1) hydraulically connects the Flow Pilot (FP) [2] or the Pressure Reducing Pilot (PRP) [3] to the Valve Control Chamber [4], through Shuttle Valve [5] (SV-5). Pressure Differential [ΔP] across the Orifice Assembly [6] is in direct proportion to demand. The FP, continuously sensing [ΔP], commands the Valve to throttle closed should demand to rise above the setting. The PRP commands the AMV to reduce Downstream Pressure [P2] to the pilot setting. In response to an electric signal, the Solenoid [7] switches and pressurizes SV5, which thereby directs line pressure into the control chamber, shutting the Valve.
Pressure Rating
- 10 bar
Operating Pressure Range
- 0.5-10 bar
For lower pressure requirements, consult Deeco
Setting Range
- 1-7 bar
Setting ranges vary according to specific pilot springs. Please consult Deeco
Flow Setting Range
- ±20% from valve predetermined flow Orifice diameter is calculated in accordance with desired ΔP at predetermined flow. Although the standard calculated ΔP is 0.4 bar, the actual head loss is 0.2 bar.
Solenoid Voltage Range
- S-390 & S-400: 24 VAC, 12VDC, 24 VDC
- S-392 & S-402: 9-20 VDC, Latch
- S-982 & S-985: 12-50 VDC, Latch
Other voltages are available.
End connections
- 40-80mm - Female Threaded BSP
- 80-400mm - Flanged
Bermad - 472-55 - End Connections
Technical Specifications
For technical specifications (Flow charts, valve characteristics, dimensions, etc.) - Please refer to the Engineering Data:
For Spare Parts & Repair Kits - Please refer to the base model:
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.
