The Gromelle MLDB quick coupling plug with integrated shut-off valve is a high-performance solution designed for applications where absolute cleanliness and reliability are essential. Manufactured from premium AISI 316L stainless steel using the advanced VIM-VAR melting process, it ensures exceptional material purity and resistance to corrosion, making it perfectly suited for demanding environments such as nuclear facilities, food processing plants, pharmaceutical production lines, semiconductor manufacturing, and the creation of delicate fragrances. Its flat-face internal thread design minimizes fluid loss and prevents contamination, guaranteeing safe and efficient operation in sensitive installations. The coupling is engineered to operate within a working pressure of 25 bar with a robust safety factor of 4:1, offering users confidence and durability in critical processes. Depending on the sealing material, it withstands a wide temperature range: from -20°C to +200°C with Viton seals and from -40°C to +150°C with EPDM seals, ensuring flexibility across diverse applications. While not intended for connection or disconnection under pressure, the MLDB plug delivers secure, leak-free performance and long-lasting reliability, making it an indispensable component for industries where precision, safety, and cleanliness are non-negotiable.