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FE 75/100 Pressure Regulator

Brand: Pietro Fiorentini
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CSA CSA Measurement Canada Measurement Canada
Hydrogen Compatible Hydrogen Compatible

The FE75 / FE100 is a two-stage gas pressure regulator by Pietro Fiorentini. It is particularly suitable for low pressure natural gas distribution networks for residential and commercial users. It should be used with previously filtered non-corrosive gases including biomethane and natural gas blended with hydrogen.

According to the European Standard EN 334, it is classified as Fail Close because it is always supplied with an overpressure protection device (slam shut valve).

The FE75 / FE100 is Hydrogen Ready for NG-H2 blending.

Features
  • Accuracy class AC: 10
  • Connections: in-line 1”, 1”1/2 NPT according to ANSI B1.20.1, other configurations or connections on request
  • Lock-up pressure class SG: 20, minimum  3” wc |0.75 kPa
  • Design pressure: 125 psig | 0.86 MPa
  • Inlet pressure: from 7.25 psig to 125 psig | 50 KPa to 0.86 MPa
  • Ambient temperature: standard version from -20°F to +150°F | -30°C to +65°C, arctic version from -40°F to +150°F | -40°C to +65°C
  • Range of downstream pressure:
    • Wds from 5” w.c. to 2.3 psig | 1.3 kPa to 16 kPa for BP, from 2 psig to 5.1 psig | 14 KPa to 35 kPa for MP
    • Wdso from 12.6” w.c. to 3.35 psig | 3.2 kPa to 23.1 kPa for BP, from 3 psig to 8 psig | 21 kPa to 55.2 kPa for MP
    • Wdsu from 2.4″ w.c. to 3.6 psig | from 0.6 kPa to 25 kPa from BP

The FE75 / FE100 is a two-stage gas pressure regulator by Pietro Fiorentini. It is particularly suitable for low pressure natural gas distribution networks for residential and commercial users. It should be used with previously filtered non-corrosive gases including biomethane and natural gas blended with hydrogen.

According to the European Standard EN 334, it is classified as Fail Close because it is always supplied with an overpressure protection device (slam shut valve).

The FE75 / FE100 is Hydrogen Ready for NG-H2 blending.

Features
  • Accuracy class AC: 10
  • Connections: in-line 1”, 1”1/2 NPT according to ANSI B1.20.1, other configurations or connections on request
  • Lock-up pressure class SG: 20, minimum  3” wc |0.75 kPa
  • Design pressure: 125 psig | 0.86 MPa
  • Inlet pressure: from 7.25 psig to 125 psig | 50 KPa to 0.86 MPa
  • Ambient temperature: standard version from -20°F to +150°F | -30°C to +65°C, arctic version from -40°F to +150°F | -40°C to +65°C
  • Range of downstream pressure:
    • Wds from 5” w.c. to 2.3 psig | 1.3 kPa to 16 kPa for BP, from 2 psig to 5.1 psig | 14 KPa to 35 kPa for MP
    • Wdso from 12.6” w.c. to 3.35 psig | 3.2 kPa to 23.1 kPa for BP, from 3 psig to 8 psig | 21 kPa to 55.2 kPa for MP
    • Wdsu from 2.4″ w.c. to 3.6 psig | from 0.6 kPa to 25 kPa from BP
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Specifications

Brand

Certifications & Approvals

CSA CSA Measurement Canada Measurement Canada

Body Material

  • Aluminum Al GD-AlSI - EN AB 46100

Cover Material

  • Aluminum Al GD-AlSI - EN AB 46100

Weight

  • 2.6 ÷ 2.9 kg

Nominal Capacity

  • 50 to 100 stm³/h
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Why Choose the Pietro Fiorentini FE 75/100

Value Elements
  • Optimized Design for Clearance Compliance
    • The FE 75/100 is engineered to reduce or fully eliminate vent and opening clearance requirements, making it ideal for tight spaces or where strict regulations apply.
  • Balanced Design and Dual-Stage Cut
    • Thanks to its internal balanced mechanism and dual-stage cut configuration, this regulator can maintain stable outlet pressure across a wide range of inlet pressures — all with just one unit. That means no more orifice changes to accommodate varying pressure demands.
  • Highly Stable Performance
    • Whether the demand is high or low, the FE 75/100 delivers consistent and reliable outlet pressure, ensuring optimal appliance operation.
  • Built-in Safety with Slam Shut
    • Ideal for Canadian installations, the FE 75/100 is OPCO-ready. For enhanced safety, it features a built-in slam shut device for overpressure protection, adding peace of mind to your installations.
  • Low Venting Emissions
    • Compliant with CSA 6.18 (Outdoor) standards, this unit drastically reduces gas venting emissions compared to conventional models.

 

Comparison vs. Next Best Alternative
  • Fewer Regulators, Fewer Headaches
    • Its balanced design handles a much wider range of demand than the competition. No need to carry or switch between multiple regulators and orifices for different installations.
  • Space-Saving Design
    • With a compact footprint, the FE 75/100 fits easily into tight installations where others might struggle.
  • Ultra-Low Venting
    • This regulator vents 2.5% or less of the gas volume typical of competitor models — a significant advantage in minimizing environmental impact and meeting regulatory requirements.

 

Where Do I Use This Product and Why?
  • Ideal for Residential and Light-Duty Commercial Settings
    • Perfect for spaces where venting options are limited or restricted — this regulator’s design excels where others fail due to clearance constraints.
  • Versatile Across Demand Ranges
    • Whether you're dealing with high or low gas demand, the FE 75/100 offers a steady, reliable output without the need for tuning or switching out components.
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