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Check valves allow air flow in a single direction and prevent air flow from the opposite direction. This check valve is an 1/8" NPT (Male) to 1/8" NPT (Female) with 12mm outer diameter. VIAIR check valves are designed to ensure that air can only flow one way through them. They usually sit between the air tank and an air compressor to prevent tank pressure from leaking back through the air compressor. VIAIR Corporation offers the most comprehensive line of fractional horsepower DC oil-less air compressors & air accessories for both the on-and off-road markets available anywhere. Our quality engineered compressors and components are also used in the OEM segment, and have become the industry standard for both 12-volt and 24-volt automotive aftermarket applications worldwide.
Use thread sealant for proper installation. Teflon tape is not recommended. Properly sealed, recommended torque for 1/8" is 10 ~ 11 ft. lbs.
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