Designed for underfloor heating systems, this manifold valve core features a high-position shut-off structure and an automatic spring mechanism. It facilitates precise water flow and temperature regulation, enhancing the efficiency of your heating system. The materials and meticulous design ensure reliable performance, catering to the needs of both residential and commercial installations. Features -Color:Golden -Material:Copper, iron -Size: 5.50X3.00X3.00cm/2.16X1.18X1.18in -Thread part: G1/2 and G3/4 -Handle part thread: G1/2 and M30 x 1.5 -Handle post diameter: 4 mm. -Recommended tube diameter: 40.8 mm. -Stable operation: the high position structure design effectively prevents water backflow, ensuring the stability of the underfloor heating system -Accurate water flow control: the shutoff spring valve core allows for precise control of water flow, improving the accuracy and efficiency of temperature regulation -Easy to use: the automatic reset feature simplifies the operation process, making it easy to quickly start and stop the underfloor heating system -Broad compatibility: suitable for various underfloor heating systems, providing stable heat distribution for both residential and commercial spaces -Reliable and durable: precision manufacturing reduces maintenance needs, ensuring longterm excellent performance and extending the system's lifespan Package list: 1 x Spring valve core