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Fuel inlet check valve for vehicle emissions control

Eaton's fuel tank inlet check valves are engineered for passenger vehicle fuel systems that require clean, consistent refueling, low permeation, and evaporative emissions control. Installed at the interface between the fuel filler neck and fuel tank, this fuel inlet check valve helps manage fuel entry during refueling, prevent reverse flow, and support integration with modern ORVR and EVAP strategies. 

Flexible permeation performance
<12 mg/day CARB LEVIII
Advanced low-permeation control
<5 mg/day CARB LEVIII
Consistent refueling performance
Supports clean, consistent refueling events

核心功能

Eaton combines low-permeation performance, controlled backpressure, and system-level engineering support to help manufacturers meet emissions targets, maintain clean refueling performance, and reduce unnecessary fuel system complexity. 


Key features include:
 

  • Manages fuel inlet flow during refueling and helps prevent reverse flow 
  • Supports low-permeation requirements for evaporative emissions control 
  • Optimized for integration with modern fuel tank architectures and ORVR strategies 
  • Manufactured for quality and consistency in high-volume OEM and Tier-1 programs 
  • Very low leak positive seal 
  • Design available for metal and plastic tanks 
  • Interfaces that work with a variety of filler pipe materials 

Role of the inlet check valve in modern passenger vehicle systems  

Inlet check valve performance influences clean and efficient refueling, backflow prevention, and evaporative emissions control.  

Eaton inlet check valve capabilities

Eaton inlet check valves are designed for durable emissions control and predictable refueling performance. Backed by Eaton’s fuel system expertise, they support stable interaction with ORVR and EVAP components and help fuel tank manufacturers (Tier-1) and OEMs, meet program goals across high-volume and global vehicle platforms. 

Designed for OEM and Tier-1 fuel system applications

Eaton inlet check valves support OEM and Tier-1 fuel system programs that require low permeation, controlled backpressure, and alignment with CARB LEVIII and China VI/VII-type requirements. 

Designed for integration into global vehicle platforms, Eaton valves help manufacturers align fuel system performance, compliance goals, and manufacturing consistency across regions. 

Emissions compliance and regulatory alignment​

Eaton inlet check valves support evaporative emissions strategies with low-permeation performance, controlled sealing behavior, and manufacturing quality suited for the life of the vehicle.

Engineering Capabilities

Backed by Eaton’s system-level engineering expertise, these valves help OEMs and Tier-1 suppliers apply consistent fuel system strategies across platforms while supporting global evaporative emissions requirements.  

规格

Permeation performance options

  • Mid-permeation: <12 mg/day (CARB LEVIII) 
  • Low-permeation: <5 mg/day (CARB LEVIII) 

Emissions and regulatory alignment

  • Meets or exceeds CARB LEVIII evaporative emissions requirements 
  • Supports China VI/VII-type passenger vehicle programs 
  • Supports global evaporative emissions requirements 

Manufacturing and quality

  • Built for high-volume OEM and Tier-1 applications 
  • Backed by Eaton system-level engineering expertise 
  • Manufacturing quality: <2 PPM