The Nitto Kohki HI CUPLA series socket with internal BSPT thread is a high‑performance solution engineered for demanding water installations, combining exceptional durability with outstanding resistance to vibration. Manufactured from robust brass, it ensures long service life and reliability even in intensive operating conditions. With a working pressure of up to 10 bar and an operating temperature range from -20°C to +80°C (NBR), this coupling guarantees stable performance across diverse environments. Its impressive flow capacity—4000 l/min for 1″, 3200 l/min for 3/4″, 2600 l/min for 1/2″, 1600 l/min for 3/8″, and 1000 l/min for 1/4″ at 5 bar—delivers efficiency tailored to various installation sizes. Designed with precision, the socket ensures secure and leak‑free connections, while its construction supports smooth medium transfer exclusively from socket to plug. Ideal for professional applications, it provides a reliable, easy‑to‑use, and maintenance‑friendly solution that enhances system performance and minimizes downtime.