Pietro Fiorentini Mod FE Regulator

The Pietro Fiorentini Mod FE is a compact, two-stage, self-operated gas pressure regulator designed for civil, residential, and light industrial gas systems. Ideal for use with natural gas, LPG, and other non-corrosive gases, this Pietro Fiorentini gas regulator ensures precise control, safety, and long-term durability.

Suitable for mounting directly on utility meters or riser mains, the FE series can be installed in any position in both indoor and protected outdoor environments. Optional vent-limiting configurations and safety features make it a reliable choice for enclosed or underground applications.

Key Benefits

• Stable two-stage regulation for consistent outlet pressure

• Built-in overpressure shut-off (OPSO) and excess flow protection

• No external power needed – mechanical, maintenance-free operation

• Can be installed in any position

• Certified to ANSI Z21.80a, CSA 6.22a, and UNI 8827 standards
   

Features

• Inlet pressure: 4.3 – 125 PSIG

• Outlet pressure: 5.2” WC – 7.2 PSIG (13–500 mbar)

• Accuracy class up to 5%; Lock-up class up to 10%

• Integrated filter with 300 µm efficiency

• Manual reset safety shut-off device

• Temperature range: -40°F to +140°F ambient
   

Benefits

• Enhances residential and commercial gas safety

• Prevents overpressure-related equipment damage

• Reduces installation time with flexible mounting options

• Minimizes risk in enclosed or underground installs via external vent piping

• Supports fixed-factor billing and precise flow control

Capability

• Compatible with civil utility systems and fuel lines

• Supports flow capacities up to 875 SCFH

• Can be configured with univent or underground safety trims

• Works across wide pressure ranges for flexible deployment
   

Construction

• Body & cover: corrosion-resistant aluminum

• Finish: epoxy powder-coated for weather durability

• Compact and lightweight (4.4 lbs)

• Threaded inlet/outlet: ¾” or 1” NPT configurations

• Meets EN 16129 and EN 334 performance classifications