Nitto Kohki PCV PIPE CUPLA quick-connect fittings with external BSPT thread provide a reliable and efficient solution for joining copper tubes with various installation components. The connection process is simple and secure—just insert the tube into the fitting and tighten the clamp, while the innovative double sealing system guarantees a leak-free joint. Manufactured from durable brass, these couplings are engineered to withstand demanding conditions, offering a working pressure of up to 45 bar and vacuum resistance down to 0.13 Pa. Depending on the medium, users can choose the appropriate sealing material: chloroprene for temperatures from -20°C to +80°C, viton for extreme heat up to +180°C, or HNBR for versatile performance up to +120°C. Designed for use with air, nitrogen, and refrigerants such as R12, R22, and R134a in combination with compressor oil, these fittings are ideal for applications like tank leak testing, system draining, and filling in air conditioning and refrigeration units. Their robust construction and precise engineering ensure long-lasting performance, making them a trusted choice for professionals seeking efficiency, safety, and reliability in every connection.