Stage II (Stage 2) Vapor Recovery Reusable Breakaway Valves
(COAX Safety Breakaway for Fuel Dispensers)
Accidental drive-offs are a major safety risk at fuel stations, often resulting in damage to dispensers, hoses, nozzles, and vehicles. The HBVRLDF-M34 Series Vapor Recovery Reusable Breakaways are engineered to minimize these risks by providing immediate, automatic shut-off when abnormal pulling force occurs during fueling.
Across different regions, this product category is commonly referred to as a fuel breakaway valve, drive-off safety valve, self-sealing breakaway coupling, coaxial safety disconnect, vapor recovery breakaway, or petrol dispenser safety break. Regardless of the name, the purpose remains the same: protecting people, equipment, and the environment.
Designed for Nozzle-Side Vapor Recovery Protection
The HBVRLDF-M34 Series is designed to be installed directly behind the vapor recovery nozzle, positioned between the nozzle and the coaxial hose assembly. This configuration provides the fastest response during a drive-off incident, ensuring that fuel flow on the hose side is stopped instantly upon separation.
It is fully compatible with ZVA Slimline 2 GR / GRV / GRVP nozzles, as well as other Stage II (Stage 2) vapor recovery nozzles used in vacuum-assist systems worldwide.
EN 13617-2 Compliant Self-Sealing Technology
Manufactured in accordance with EN 13617-2, the HBVRLDF-M34 is a self-sealing breakaway coupling designed for modern vapor recovery systems. When separation occurs, the internal sealing mechanism closes automatically, preventing fuel leakage and reducing vapor release.
Each unit undergoes 100% factory testing and is supplied with inspection marking, ensuring consistent quality and compliance with international safety expectations.
Controlled Separation for Real-World Use
To avoid nuisance disconnections while still providing effective protection, the HBVRLDF-M34 Series is calibrated to separate only when axial pulling force reaches a controlled range of 800 N to 1500 N. This balance allows normal fueling operation while safeguarding against genuine drive-off events.
The breakaway valve maintains stable performance under common station conditions, supporting:
All standard gasoline fuels, including ethanol-blended fuels
Maximum working pressure up to 3.5 bar
Flow rates up to 45 L/min
Ambient temperature range from −20°C to +55°C
Durable Construction with Reusable Design
Unlike single-use safety couplings, the HBVRLDF-M34 Series is reusable, allowing trained technicians to reconnect and return the unit to service after inspection. The valve body is made from high-strength aluminum, while sealing components use Buna-N and Viton®, offering reliable chemical resistance and long service life.
This reusable concept is particularly valued in markets where breakaways are also known as serviceable safety disconnects or maintenance-friendly breakaway valves.
Metric Threading for Global Compatibility
Equipped with M34 × 1.5 male-to-female coaxial threads, the HBVRLDF-M34 integrates easily into fuel dispensers used across Europe, the Middle East, Asia, and other regulated regions. An optional version with a vapor proportional regulating valve is available to support different system designs.
Typical Applications
Stage II (Stage 2) vapor recovery fuel dispensers
Nozzle-side safety protection
New fuel station installations
Vapor recovery retrofit and upgrade projects
HBVRLDF-M34 Series Vapor Recovery Reusable Breakaways deliver a reliable combination of safety compliance, controlled separation, and long-term usability—making them a trusted choice for modern vapor-controlled fueling systems around the world.
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