Poppet check valves provide reliable backflow prevention with fast-acting poppet mechanisms suited for both liquid and gas applications. These valves are available in brass, nickel-plated brass, and stainless steel bodies, with female, male, or mixed NPT thread connections in sizes from 1/8" to 3/4". Seal options include Buna-N, Viton, EPDM, Neoprene, and Silicone to support a range of media compatibility. Select models handle pressures up to 5,000 psi, with multiple cracking pressure ratings available for precision flow control in industrial, hydraulic, and pneumatic systems.