The 1/2″-4″ NPT Brass Water Oil Gas Swing Check Valve is a durable and reliable plumbing fitting suitable for various fluids including water, oil, and gas. Made from high-quality brass with a matte finish, this check valve features a flexible design, smell-proof construction, and rust-resistant properties, ensuring long-lasting performance in industrial applications. With a maximum working pressure of 1.6Mpa and a maximum water temperature of 120°, this valve is a versatile and efficient solution for controlling fluid flow in a wide range of settings.