2" Solid Cast Brass Inline Horizontal Check Valve - Air Compressor WOG Rated - Perfect for Water, Oil & Gas Systems - Ideal for Industrial & Home Workshop Use

2" Female NPT in-line air compressor check valve. This check valve features a 1/8" female NPT port in the side to go to an unloader valve if needed. This is a universal inline check valve with female NPT threads on each end. This valve prevents back flow or tank pressure from getting back into the air compressor pump once the compressor is shut off. The 1/8" unloader port on the side of the valve is used to relieve pressure from the pump once it has shut off. Specifications: Valve Inlet Threads- 2" Female NPT (inside diameter is approx. 2.25" in diameter) Valve Outlet Threads- 2" Female NPT (inside diameter is approx. 2.25" in diameter) Side Port- 1/8" Female NPT (inside diameter measures about 3/8") Total Length of Valve: 4" There is an arrow on the valve that shows air flow direction for installation. Double check that you have this valve installed in the right direction before operating. Improper installation can cause damage to compressor pumps.