Description
Bermad IR-430-50-R Pressure Relief/Sustaining Valve
The Bermad Model IR-430-50-R is a hydraulically operated, diaphragm actuated control valve that sustains minimum preset upstream (back) pressure, regardless of fluctuating flow or varying downstream pressure.
This valve either opens or shuts in response to remote pressure commands. When installed offline, the Bermad Model IR-430-50-R relieves line pressure in excess of preset.
Applications:
- Computerized Irrigation Systems
- Pressure Zone Prioritizing
- Line Fill-Up Control
- Line Emptying Prevention
- Irrigation Machines
- Distribution Centers
- Low Supplied Pressure Irrigation Systems
Hydraulic Pressure Control
- Line pressure driven, hydraulically controlled on/off
- Sustains supply pressure and controls system fill-up
- Relieves excess pressure protecting pump and 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 performances
- Progressively restrains valve closing
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- Prevents diaphragm distortion
User-FriendlyDesign
- Easy pressure setting
- Simple in-line inspection and service
Operation
The Pressure Sustaining pilot commands the Valve to throttle closed should upstream pressure drop below pilot setting, and modulate open when it rises above pilot setting. The Hydraulic Relay Valve closes upon receiving a remote pressure command, shutting the main Valve.
The downstream cock valve enables manual closing.
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