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Reflux 819 High-Medium Pressure Gas Regulator - Pietro Fiorentini Saudi Arabia H2 Ready
Pilot Operated Regulator

Reflux 819

High-Medium Pressure Gas Regulator

A pilot-operated gas pressure regulator designed for high-pressure transmission systems and medium pressure natural gas distribution networks. Suitable for previously filtered non-corrosive gases and certified hydrogen-ready for NG-H2 blending applications. Configurable as Fail Close or Fail Open per EN 334.

EN 334 Certified
Up to 102 bar
Hydrogen Ready
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Technical Specifications

Performance
Accuracy Class (AC)Up to 1
Lock-up Pressure Class (SG)Up to 2.5
Downstream Pressure (Wd)0.3 to 74 bar
Inlet Pressure (bpu)0.8 to 100 bar
Min. Differential Pressure0.5 bar
Construction
Nominal Sizes1″, 2″, 3″, 4″, 6″, 8″, 10″, 12″
Design PressureUp to 102 bar
Operating Temperature-20°C to +60°C
ConnectionsClass 150, 300, 600 RF or RTJ per ASME B16.5; PN 16 per ISO 7005
Operation TypePilot Operated (Fail Close / Fail Open)

Applications

Gas Transmission HP
Gas Distribution MP
City Gates
Compressor Stations
Gas Storage
LNG Marine Transportation
Gas Liquefaction
Regasification

Key Features

Hydrogen Ready

Certified for NG-H2 blending for future energy applications.

Wide Size Range

Available from 1" to 12" for diverse application needs.

Configurable Options

Available with silencer, slam shut, and monitor options.

High Accuracy

Accuracy class up to 1 for precise pressure control.

Downloads

Technical documentation and resources

Flyer

PDF - English

Technical Manual

PDF - English

Technical Brochure

PDF - English

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