FEX Low Pressure Gas Regulator - Pietro Fiorentini Saudi Arabia H2 Ready
Direct Operated Regulator

FEX

Two-Stage Low Pressure Regulator with OPSO & UPSO

A two-stage gas pressure regulator with integrated slam-shut functionality for both over-pressure (OPSO) and under-pressure (UPSO) protection. Optional fire protection valve available. Hydrogen Ready for NG-H2 blending applications. Suitable for natural gas, biomethane, and hydrogen-blended applications in low-pressure residential and commercial distribution networks.

H2 Ready
Up to 8.6 bar
OPSO & UPSO

Technical Specifications

Performance
Accuracy Class (AC)10
Lock-up Pressure Class (SG)20
Safety Accuracy Class (AG)10 (min 2 mbar)
Inlet Pressure Range0.1 to 8.6 bar
Downstream Pressure BP13-99 mbar
Downstream Pressure MP100-350 mbar
Construction
Design Pressure8.6 bar
Connections - InletG 1" per ISO 228/1
Connections - OutletG 1-1/2" per ISO 228/1
Standard Temperature-20°C to +60°C
Extended Temperature-30°C to +60°C
Arctic Temperature-40°C to +60°C
Min. Differential PressureFEX50: 0.3 bar, FEX75: 0.4 bar, FEX100: 0.6 bar

Applications

Low Pressure Gas Distribution
Residential Users
Commercial Users
Biomethane Compatible
NG-H2 Blending
Filtered Non-corrosive Gases

Key Features

Hydrogen Ready

Certified for NG-H2 blending applications with biomethane compatibility.

Integrated OPSO & UPSO

Two-stage regulator with integrated slam shut for both over and under pressure protection.

Optional Fire Protection

Fire protection valve available as optional feature.

Multiple Temperature Versions

Standard, extended (-30C), and Arctic (-40C) versions available.

Two-Stage Design

Precise pressure regulation with dual-stage mechanism.

Need More Information?

Our technical team is ready to help you select the right regulator for your application.