Pietro Fiorentini’s FT 518 is a lever-operated regulator controlled by a diaphragm and setting spring which controls the valve.

It is mainly used for farm tap applications, high-pressure transmission systems and for medium pressure natural gas distribution networks with previously filtered non-corrosive gases.

According to the European Standard, it is classified as Fail Open.

Competitive Advantages:
• Compact and simple design
• Operates with high differential pressure
• Built-in filter
• Token IRV
• Top entry
• Built-in accessories
• Easy maintenance
• Biomethane compatible and available with specific versions for full Hydrogen or blending

Main Features:
• Design pressure* (PS 1 / DP²): up to 6.94 MPa – up to 1000 psig
• Ambient temperature* (TS¹): from -40 °C to +60 °C or from -40 °F to +140 °F
• Inlet gas temperature*: from -20 °C to +60 °C  or from -4 °F to +140 °F
• Inlet pressure (MAOP / pumax¹): from 0.14 to 6.94 MPa or from 20 to 1000 psig
• Range of downstream pressure (Wd¹): from 0.034 to 3.4 MPa  or from 5 to 500 psig
• Available accessories: Token IRV, built-in strainer, incorporated monitor, incorporated slam-shut
• Minimum operating differential pressure (Δp min¹): 49 kPa  or 7 psig
• Accuracy class (AC¹): up to 20 (depending on working conditions)
• Lock-up pressure class (SG¹) : up to 20 (depending on working conditions)
• Nominal size (DN1,2): DN 20 | 3/4”; DN 25 | 1”; DN 50 | 2”
• Orifice: 3/32”; 1/8”; 3/16”; 1/4”; 3/8”; 1/2”
• Connections: threaded NPT, flanged or SW (available soon)

Construction Standards and Approvals:

FT 518 regulator, is designed according to the ANSI B 109.4 standard where applicable. The regulator reacts in opening (Fail Open) according to EN 334 classification. Leakage class: bubble tight, better than class VIII according to ANSI/FCI 70-3.

Accessories:

• Integral full monitor PM/518
• Slam shut valve SB/518
• Strainer

Downloads:
PF FT 518 Product Flyer
PF FT 518 Technical Brochure