The Enviro Ball Valve from ALFA Valvole is the only certified High Pressure low fugitive emissions ball valve on the market, with leakage class BH as standard product (or AH in special stem gasket configuration) according EN 15848-1. With its rugged design, this off-the-shelf green valve solution offers reliable performance in hydrogen line applications.
- Environmentally sensitive
- Certified zero fugitive emission function acc. EN 15848-1 ISO FE BH-C03-SSA 0 (T: -46°C → 120°C) – ANSI 2500 in standard execution Fire Safe or ISO FE AH-C03-SSA 0 (T: -46°C → 120°C) – ANSI 2500 with Chevron Ring and HNBR O-Ring
- Custom emissions testing available acc EN 15848-2
- Ideal solution for all H2 applications: transport, storage, compressors stations, refilling stations pure or in blend up to 20%
- Body Material in ASTM A479 316/316L for usage with pure Hydrogen or ASTM A350 LF2 for usage in blending hydrogen + natural gas
- Based on Alfa Valvole Model A22EV this concept is applicable to all our valve range
- Suitable to be used until pressure class ANSI 2500 (425 barg)
- Elegant standard design
- Ideal for hydrogen flow management
- Precision manufactured in Italy
- Readily available through a global distributor network a global distributor network
Hydrogen Ready
The Enviro Ball Valve’s robust steel body readily handles up to 10% hydrogen blending in natural gas lines with zero fugitive emissions.
As the market’s only certified low fugitive emissions valve, this standard component offers a simple, reliable valve solution under the harsh, erosion-prone conditions of hydrogen transport and storage.
Enviro Ball Valve Performance Features
- Ball contained in body length
- Antistatic device
- ISO 5211 top mounting
- Stem O-ring or PTFE Chevon ring for maximum tightness
- Fire-safe gasket configuration
- Anti-blowout stem design
Certified Zero Fugitive Emissions
The standard Enviro Ball Valve received Fugitive Emissions Certification in class BH at room temperature, which is ideal for hydrogen blending at 10 percent, the current pipeline limit. The standard valve also is rated class BH for helium. The chevron ring option is rated at class AH.
For custom applications, such as pure hydrogen, we can coordinate with you to conduct customized fugitive emissions tests. We have already successfully tested the Enviro Ball Valve for pure hydrogen flow with a rating up to 425 bar (ANSI 2500), a temperature range from -46°C to 120°C and endurance class C03.

