FE515 Low Pressure Gas Regulator - Pietro Fiorentini Saudi Arabia
Direct Operated Regulator

FE515

Two-Stage Low Pressure Regulator with Integrated Safety

A two-stage direct-operated regulator featuring integrated slam-shut (OPSO) and optional excess flow valve (EFV) for UPSO and fire protection. Designed for low pressure natural gas distribution networks in residential and commercial applications. Available in standard, extended, and arctic temperature versions. Compatible with natural gas and LPG.

Integrated OPSO
Up to 5.15 bar
Optional EFV

Technical Specifications

Performance
Accuracy Class (AC)10
Lock-up Pressure Class (SG)20
Safety Accuracy Class (AG)10
Inlet Pressure Range0.1 to 5.15 bar
Downstream Pressure (BP)13-180 mbar
Downstream Pressure (TR)180-500 mbar
With OPSO/EFV (BP)35-299 mbar
With OPSO/EFV (TR)300-800 mbar
Overflow Trip110-170% of nominal flow rate
Construction
Design Pressure5.15 bar
Connections - InletG 1/2" per ISO 228/1
Connections - OutletG 1" or G 3/4" 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 PressureFE515-6: 0.15 bar, FE515-10: 0.2 bar, FE515-25: 0.3 bar
Gas CompatibilityNatural Gas, LPG

Applications

Low Pressure Gas Distribution
Residential Users
Commercial Users
LPG Systems
Arctic Installations
Filtered Non-corrosive Gases

Key Features

Integrated OPSO Slam-Shut

Built-in over-pressure shut-off for enhanced safety.

Optional EFV

Excess flow valve enabling UPSO and fire protection capabilities.

Extended Temperature Range

Arctic version available down to -40C for extreme environments.

Two-Stage Design

Precise pressure regulation with dual-stage mechanism.

Multi-Fuel Compatible

Suitable for natural gas and LPG applications.

Downloads

Technical documentation and resources

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