PIETRO FIORENTINI
Energy for a better life
H2 Ready
Pilot Operated Regulator
Terval/R
Medium-Low Pressure Gas Regulator
A pilot-operated gas pressure regulator designed for filtered non-corrosive gases, primarily serving medium and low pressure natural gas distribution networks. Classified as "Fail Close" per European Standard EN 334.
Fail Close
Up to 25 bar
High Accuracy
Technical Specifications
Performance
Accuracy Class (AC)Up to 2.5
Lock-up Pressure Class (SG)Up to 5
Inlet Pressure (bpu)0.5 to 25 bar
Outlet Pressure (Wd)0.008 to 12 bar
Min. Differential Pressure0.1 bar
Construction
Design PressureUp to 25 bar
Operating Temperature-20°C to +60°C (custom on request)
Nominal Sizes2″, 2½″, 3″, 4″
ConnectionsClass 150 RF or RTJ per ASME B16.5; PN 25 and PN 40 per ISO 7005
Fail ModeFail Close (EN 334)
Applications
Gas Distribution MP
Gas Distribution LP
District Stations
Gas Networks
Medium/Small Industry
Commercial Users
Key Features
Fail Close Safety
Automatically closes on failure per EN 334.
Precise Regulation
Fail-safe operation with precise pressure regulation.
Silencer Options
Configurable silencer options available.
Custom Temperatures
Custom temperature ranges available on request.
Downloads
Technical documentation and resources
Pilot Operated
Aperflux 851
Pilot operated regulator for high-medium pressure applications.
View Details
Need More Information?
Our technical team is ready to help you select the right regulator for your application.