LQH's Normal Check Valve prevents backflow in water supply, irrigation, and industrial systems operating at standard temperatures and pressures. Available in swing, lift, and butterfly designs, these durable valves feature brass or stainless steel construction to reliably maintain unidirectional flow while minimizing pressure drop. Part of LQH's comprehensive normal valve series, they combine quality seals with smooth operation for maintenance-free performance. With their compact design and corrosion-resistant materials, these check valves embody LQH's commitment to "Quality-centered precision and High-performance reliability" in general industrial applications worldwide. Installation versatility makes them ideal for horizontal or vertical pipe configurations.