Check valve 1/2 inch with flap, PN16 ZZK1W

Check valve with flap, designed to protect installations from backflow, is a reliable solution for both professional installers and end-users. This model, made of high-quality materials, ensures long-lasting and trouble-free operation in water and central heating systems.

The valve features a 1/2 inch tapered internal thread (NPT) connection and a nominal working pressure of PN16 (16 bar). Its construction based on a flap with an NBR seal guarantees effective flow stopping in one direction while minimizing pressure loss. The maximum operating temperature of the valve is 100°C. The brass construction provides corrosion resistance and durability. Additionally, the valve has a "Nickel Free" marking, which means that the surface in contact with water is not nickel-plated – important