PF FE25 / FE50 Gas Pressure Regulator

The FE25 / FE50 is a two-stage, spring loaded lever operated gas pressure regulator by Pietro Fiorentini. It is particularly suitable for low pressure natural gas distribution systems for residential and commercial users. It should be used with previously filtered noncorrosive
gases including biomethane and natural gas blended with hydrogen. According to the International Standard ISO 23555-2 and European Standard EN 334, it is classified as Fail Close because it
is always supplied with an overpressure protection device (slam shut valve). The FE25 / FE50 is Hydrogen Ready for NG-H2 blending

Traits:
• Design pressure* (PS1 / DP²): up to 860 kPa, up to 125 psig
• Ambient temperature* (TS¹)**:
Standard version: -30°C to +65°C | -20°F to +150°F
Arctic version: -40°C to +65°C | -40°F to +150°F
• Inlet gas temperature*,***
Standard version: -20°C to +65°C | -4°F to +150°F
Arctic version: -30°C to +65°C | -20°F to +150°F
• Inlet pressure (MAOP / pumax¹)
Standard version: from 10 kPa to 0.86 MPa, from 1.45 psig to 125 psig
• Range of downstream pressure Wds:
BP version: from 1.3 kPa to 18 kPa, from 5.2”w.c. to 2.6 psig
MP version: from 30 kPa to 40 kPa, from 4.35 psig to 5.8 psig
• Range of downstream pressure Wdso:
BP version: from 3.5 kPa to 24.1 kPa, from 14”w.c. to 3.5 psig
MP version: from 30 kPa to 80 kPa, from 4.3 psig to 11.6 psig
• Minimum inlet pressure and nominal capacity: 
FE25: up to 25 Sm³/h | 875 sfch with 28 kPa | 4 psig differential pressure
FE 50: up to 43 Sm³/h | 1,500 sfch with 69 kPa | 10 psig differential pressure
• Accuracy class (AC¹): 10
• Lock-up pressure class (SG¹): 20, minimum 0.75 kPa | 3” w.c.
• Connections*: In-line 3/4” or 1” NPT according to ANSI B1.20.1, other configurations or connections on request

(¹) according to EN334 standard
(²) according to ISO 23555-1 standard
(*) NOTE: Different functional features and/or extended temperature ranges may be available on request. Stated inlet gas temperature range is the
maximum for which the equipment’s full performance, including accuracy is guaranteed. Product may have a different pressure or temperature ranges
according to the version and/or installed accessories.
(**) NOTE: Stated temperature range is the operating range for which the equipment’s mechanical resistance and leakage rate are guaranteed. Some body
materials, if multiple choices are available, may not be suitable for all the available versions shown.
(***) NOTE: Stated temperature range is the range for which the equipment’s full performance, including accuracy and lock-up are guaranteed. Some body
materials, if multiple choices are available, may not be suitable for all the available versions shown.

Competitive Advantages:
• Operates with low differential pressure
• Slam-shut valve for overpressure
• Two-stage double diaphragm and single orifice regulator
• Highly customizable
• Suitable for 1 ft clearance installation with 2.5 cf/h limited venting
• Built-in thermal valve option
• Built-in strainer
• Built-in flow limiter valve option which enable UPSO feature
• Suitable for outdoor installations
• Biomethane (RNG) compatible and 20% Hydrogen blending compatible. Higher blending available on request

Téléchargements :
PF FE25 / FE50 Technical Brochure
PF FE25 / FE50 Product Flyer
PF FE Poster