

Features
- Line Pressure Driven Normally Closed PRV
- Protects downstream systems
- Closes upon control failure
- Amplifies and relays weak remote command
- Pressure Reducing Servo Pilot Controlled
- Dynamic integrated needle valve
- Settable to 0.5 bar; 7 psi
- Very low hysteresis
- 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
- Simple In-Line Inspection and Service
Description
The Bermad Model IR-420-54-bK is a hydraulically operated, diaphragm actuated control valve that reduces higher upstream pressure to very low and stable preset downstream pressure, regardless of fluctuating demand or varying upstream pressure.
It is a Normally Closed valve, which opens in response to a remote pressure drop command and shuts in the absence of that command.
Make enquiry
Online Enquiry Close
Downloads
Videos
