Poppet check valves ensure compatible media travels through a system in the intended direction and are suited for low-pressure applications in various industrial applications, such as hydraulic systems. These valves have a poppet attached to a spring-loaded stem that stops backward-flowing media from entering back into the system. Flowing media pushes the poppet away from the valve seat to open the flow path and when pressure on the outlet side exceeds the pressure on the inlet side (back-siphonage), the poppet is lowered into the flow path and stops backflow from entering the system. Inline poppet check valves create a linear flow path for media to minimize pressure drops and ensure efficient flow. Food grade and sanitary inline poppet check valves meet applicable 3-A or NSF (National Sanitation Foundation) 51 standards for use with dairy or food and beverage products. Instrumentation inline poppet check valves are compact and suit high-pressure applications.