Female to Male Inline Check Valve

Technical Specifications:

• Brand: Vibrant Performance

• Part Number (MPN): 11118

• Product Type: Ball Style Inline One-Way Check Valve

• Inlet Side (Side A): -8 AN Male

• Outlet Side (Side B): -8 AN ORB Female (O-Ring Boss)

• Flow Direction: From -8 AN Male to -8 AN ORB Female

• Material: 6061 Aluminum Alloy (Black Anodized)

• Cracking Pressure: Adjustable (2 to 5 PSI)

• Max Operating Ratings: 300 PSI Max Pressure / 400°F Max Temperature

Performance & Fitment Features:

• Universal Fluid Control: Designed to completely prevent the back-flow of fuel, engine oil, or coolant in high-performance plumbing systems. Ideal for maintaining fuel pressure after engine shutoff or preventing oil drain-back in custom turbocharger configurations.

• CRITICAL INSTALLATION WARNING (ADJUSTMENT REQUIRED): This check valve features an adjustable internal spring (cracking pressure). It is NOT pre-set for your specific application. You MUST calibrate the spring tension (2-5 PSI) and apply high-strength thread locker to the adjustment mechanism prior to final installation. Failing to lock the adjustment will result in valve failure under vibration.

• CRITICAL HARDWARE WARNING (ORB OUTLET): The outlet (Side B) is a -8 ORB Female port. It requires a straight-thread male fitting equipped with an O-Ring to seal correctly. Attempting to use a standard tapered or AN-flare fitting without an O-Ring will strip the threads and result in catastrophic, high-pressure fluid leaks.

Federal Emissions Compliance:

• Emissions Code: 5 (Plumbing Hardware)

• Status: This is a physical fluid control component that does not actively alter factory emissions control equipment. It is strictly legal for sale, installation, and street use in all 50 US states, including California. No CARB Executive Order (EO) is required.

Disclaimer & Warranty Information: Onyx Customs FL acts exclusively as an authorized retailer of high-performance automotive components. We do not manufacture this product. Modifying pressurized fuel and oil systems carries extreme risk. Improper installation, reversing the flow direction, failing to set the cracking pressure, or using incorrect ORB fittings will result in severe fuel leaks, engine oil starvation, catastrophic engine failure, or total vehicle loss due to fire. Onyx Customs FL assumes no liability for direct or indirect damages, fires, or engine rebuilds resulting from the incorrect application or misuse of this component. All manufacturing defects and warranty claims are strictly the responsibility of Vibrant Performance. We strictly mandate that all fluid plumbing be installed and pressure-tested by a certified professional mechanic.