The LET-LOK® straight coupling with external BSPT thread is a high‑performance connector designed for inch tubing, offering exceptional reliability in demanding industrial environments. Manufactured from premium AISI 316 stainless steel, it ensures outstanding resistance to corrosion, aggressive chemicals, and extreme operating conditions. Its robust construction makes it an ideal choice for applications in the chemical, petrochemical, pharmaceutical, energy, nuclear power, and process engineering sectors, where safety and durability are critical. The coupling is engineered to provide a secure, leak‑tight connection, supporting efficient system performance and minimizing downtime. The allowable working pressure depends on the tubing’s outer diameter and wall thickness, enabling precise adaptation to specific installation requirements. With its proven LET-LOK® technology, this coupling guarantees ease of assembly, long service life, and consistent performance, making it a trusted solution for industries that demand uncompromising quality and operational reliability.