What is ORVR? Onboard Refueling Vapor Recovery (ORVR) is a vehicle emission control system that captures fuel vapors from the vehicle gas tank during refueling. These vapors are then burned through the combustion chamber during vehicle operation preparing (purging) the canister for the next refueling event. Implementation in the United States in 1998, determined to be in widespread use by 2013.
ORVR Technology has contributed a 98% reduction in refueling emissions.
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Founded in 1898, Stant is the global leader in automotive fuel systems design, validation and manufacturing. The company supplies a global client base of automobile manufacturers with both modular components and complete fuel systems. Stant is the only fuel systems manufacturer that can deliver a total system solution that is compliant with China 5 emissions standards.
Major Components of ORVR Systems
Stant filler pipe assemblies provide quality refueling performance while minimizing fuel hydrocarbon emission vapors to meet stringent environmental and safety regulations.
Stant carbon canister modules meet strict fuel vapor emission regulations by storing evaporated fuel vapor.
Double Wall Fuel Limit Vent Valves (FLVV)
Stant’s Compact Inlet Check Valve provides industry leading pressure drop and exceeds global performance and durability requirements
Multi-Function Control Valves (MFCV)
Stant Multi-Function Control Valves improve efficiency and reduce cost by providing several functional benefits in a single valve.
Inlet Check Valve (ICV)
Stant’s Compact Inlet Check Valve leads the Pressure Drop Valve industry and exceeds global performance and durability requirements
Grade Rollover Valve (GRV)
Stant’s Grade Rollover Valve provides venting and back-flow while preventing overfilling and liquid carryover in multiple conditions.
Be prepared for China 5 requirements with Stant’s fuel systems solutions.
ONBOARD VAPOR RECOVERY DEFINED: Chinese Version
ONBOARD VAPOR RECOVERY DEFINED: English Version
Important facts about ORVR (Onboard Refueling Vapor Recovery)
- ORVR (Onboard Refueling Vapor Recovery) systems, dramatically limit refueling emissions and significantly reduce VOCs (volatile organic compounds), which are major contributor to direct toxic emissions and ozone formation. The EPA implementation of ORVR rules has brought American ORVR efficiency to 98%.
- ORVR is being used in the United States with significant success in eliminating VOC emissions during refueling to a rate of 98%. All indications are the Beijing 6 and the newest China National Regulations will start to enforce ORVR by 2017 – 2018.
- ORVR is not necessary for diesel engines.
- It is a common misconception that Europe leads the world in reducing harmful emissions from automobiles. Actually, the United States is the global leader in ORVR, with Europe following, while China is actively legislating to regulate emissions to become a global leader in ORVR.
- The implementation of ORVR in the United States has directly resulted in a 98% decrease in evaporative emissions. ORVR has been incredibly effective at reducing the level of NOx, ozone and other volatile organic compounds (VOCs) found in evaporated fuel.
- There are three major sets of timelines at work that pertain to ORVR. They are the emissions standards being set by regulatory bodies in the United States, Europe and China. China has recently accelerated its timetable and is aggressively pushing to reduce PM2.5 pollutants