Bronze coupling 4270G 22x1/2" LWxGW 4270G022004000

Soldered‑threaded connector – practical solution for water and gas installations

Coupling made of high‑grade bronze CuSn5Zn5Pb2‑C (CC499K‑DW) provides a durable connection for pipes with a diameter of ½ in (≈ 15 mm). With two different types of connections – one intended for capillary soldering and the other with an internal gas thread BSPP‑G (ISO 228‑1) – the element works well in both water‑supply and gas systems. The straight shape and 180° bend angle facilitate precise fitting to existing networks, and the light weight (≈ 0.04 kg) and compact dimensions allow easy transport and storage.

Key benefits

• Universal connection – one side soldered, the other threaded BSPP‑G; ideal for transitions between copper and gas installations.

• Material complying with PN‑EN 1982 – bronze with reduced nickel and lead content, approved for drinking water and resistant to corrosion at high temperatures.

• Simple installation – capillary soldering, soft or hard, requires no special tools; the internal thread provides a quick and leak‑tight connection without additional seals.

• Durability and safety – mechanical strength and resistance to chemical agents guarantee long service life of the installation.

• Compatibility with PN‑EN 1254‑1 – the product meets the requirements for pipe joining according to European standards.

Applications and installation guidelines

The coupling is used in:

• Water‑supply installations (connections to copper pipes),

• Gas systems (transitions to steel or copper pipes),

• Modernisation of existing networks where soldered elements need to be joined with threaded ones.

During installation:

1. Prepare the surface – clean the pipe and remove any contaminants before soldering.

2. Apply appropriate flux – it ensures even distribution of solder and a durable joint.

3. Use the correct temperature – for hard soldering maintain temperature control to avoid overheating the bronze material.

4. Thread sealing – tighten the BSPP‑G threaded element by hand, then finish tightening with a wrench until a uniform resistance is felt; no additional seals are required thanks to the precise thread.

The product is manufactured in Poland and meets all European quality‑standard requirements, making it a safe choice for both professional installers and DIY hydraulic work.