Malleable Cast Iron Female-Female Sleeve with Black Heart

The Female-Female sleeve made of malleable cast iron with black core is a reliable junction fitting for network continuity. Manufactured in EN-GJMB-350-10 and compliant with EN 10242 and ISO 49 standards, it provides a robust connection for water, gas, steam and HVAC systems. Its two cylindrical female threads (Rp) are optimized to accommodate the tapered male threads (R) of ISO 7-1 standard (BSPT), ensuring a high quality seal. The corrosion-resistant black finish, with a minimum thickness of 70μm, gives it excellent longevity. Each sleeve is subjected to a 100% unit leak test. Beyond its technical applications, this fitting is also a popular design element in the manufacture of industrial furniture, bringing a vintage style and undeniable solidity.