Bronze nipple, 4243G 15 × 3/4" LWxGZ 4243G015006000

What it is and where a brass sleeve is suitable

The sleeve made of brass CuSn5Zn5Pb2‑C (CC499K‑DW) is a transition element intended for joining pipes with a nominal diameter DN 15 (15 mm) to a gas external tapered thread BSPT‑R 3/4". Thanks to its simple shape and 180° arc angle it is ideal for gas and water‑heating installations where a durable and leak‑tight construction is required. The product complies with standard PN EN 1982, guaranteeing conformity with European technical requirements.

Key features and practical benefits

• High‑grade material – brass with composition CuSn5Zn5Pb2‑C provides corrosion resistance and good mechanical strength, extending the service life of the connection.

• Soldering sleeve – enables quick and reliable installation using traditional soldering methods, without the need for additional seals.

• BSPT‑R thread (ISO 7‑1 / EN 10226‑1) – standard gas thread ensures easy fitting to existing installation components and future replaceability.

• Simple 180° shape – facilitates straight‑line pipe routing, minimizing pressure loss and simplifying the layout.

• Dimensional compatibility – 15 mm (DN 15) on one side and 3/4" on the other allows flexible adaptation to various pipe systems.

Installation and compliance with standards

Installers will appreciate that the sleeve can be mounted both by soldering and by using appropriate tools for BSPT‑R threads. The product is manufactured in Poland in accordance with PN EN 1982, confirming its quality and compliance with safety requirements in gas and heating installations. Precise manufacturing ensures all joints are hermetic, eliminating leak risk and providing stable operation of the entire system.