H2 Ready
Reflux 919
Control Diaphragm Valve
The Reflux 919 is a control diaphragm valve engineered for natural gas and other pre-filtered, non-corrosive gases in high-pressure transmission and medium-pressure distribution networks. With exceptional rangeability up to 1:1000, it provides precise flow control across a wide range of operating conditions. Available in both direct-action (air-to-close) and reverse-action (air-to-open) configurations, the valve is Hydrogen Ready for NG-H2 blending applications.
Technical Specifications
Detailed technical data for the Reflux 919 Control Valve
Applications
Key Features
Exceptional Rangeability
Up to 1:1000 rangeability provides precise control across a wide range of flow conditions.
Hydrogen Ready
Compatible with natural gas and hydrogen blending for future energy transition.
Dual Operating Modes
Available in direct-action (air-to-close) and reverse-action (air-to-open) configurations.
High-Pressure Rating
Designed for pressures up to 102 bar for demanding transmission applications.
Standards Compliant
End-to-end dimensions comply with EN 334 specifications.
Versatile Connections
Multiple ANSI and ISO flange options for global compatibility.
Downloads
Technical documentation and resources
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Pilot operated regulator for high-medium pressure applications with H2 ready capability.
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ASX 176
Pilot operated regulator for high-medium pressure gas transmission.
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