Double connector with SC 54 x 2 1/2" male thread, bronze / shiny, model 2263 341961

Connection Fitting for VIEGA Piping Systems

This solution combines the speed of press-fit system installation with traditional threading, making it an invaluable component for transitions between different types of installations. This product, identified by catalog number 341961, is used to connect a press-fit pipe with an outer diameter of 54 mm to a component featuring a metric internal thread with a nominal size of 2 1/2 inches. Thanks to the SC-Contur contour, the pressed connection is performed in a repeatable and leak-tight manner, eliminating the risk of leaks resulting from human errors during thread tightening.

The material of construction is bronze (or silicon bronze), ensuring corrosion resistance in typical water and heating installations. The surface of both connections remains in a raw state, which is standard for this type of fitting in VIEGA systems. Inside, there is a seal made of ethylene-propylene-diene monomer rubber (EPDM), guaranteeing tightness across a wide range of temperatures and pressures. It is worth noting that the nut securing the seal is made of brass, increasing the mechanical strength of the entire assembly during tightening.

Application and Key Installation Benefits

The main advantage of this dual fitting is the ability to quickly transition from a press-fit pipe to a threaded connection without the need for additional reducers or intermediate adapters. This is particularly useful in locations where the installation must be connected to an existing piping network or fittings with metric threads.

• Connection Versatility – The component connects a 54 mm (1 1/2 inch) pipe directly to a 2 1/2 inch (65 mm) metric thread, allowing flexible design of heating and water supply circuits without unnecessary transitions.
• Pressure Resistance – Designed for operation at a working pressure of up to 16 bar at 20°C, the product is suitable for most central heating and domestic hot water installations.
• Sealing Durability – The EPDM seal ensures stability at temperatures ranging from -25°C to +110°C, protecting against leaks even under thermal fluctuations of the system.
• Ease of Installation – The SC-Contur press-fit system allows for quick connection without the need for threading tools or adhesives, significantly reducing on-site work time.

For ease of selection, it is important to remember the key dimensions: the outer diameter of the pipe on the press-fit side is exactly 54 mm, while on the threaded side, we have a nominal diameter of 2 1/2 inches (approximately 65 mm). The maximum working pressure is the standard 16 bar at ambient temperature for this class of components, and the range of tolerable medium temperatures extends from -25°C to +110°C thanks to the high-quality EPDM seal.

Construction and Compliance with Standards

The component has a simple shape and is constructed as a one-piece unit for the press-fit connection and two-piece in the context of the complete assembly with the seal-retaining nut. The absence of additional functions such as a drain valve or air vent makes it a purely functional transition fitting. The product meets the requirements of the KIWA certificate, confirming its safety and compliance with current standards for sanitary installations.

For installers, this means confidence that, when using this component according to the manufacturer's instructions (including the use of appropriate pressing heads), they will achieve a durable connection resistant to mechanical and thermal overloads. For the end user, this is a guarantee of safety for water, sewage, or heating installations over many years of operation without the need for servicing the pipe connection point itself. The raw surface condition does not require additional anti-corrosion treatment before installation, but proper protection of the connection point after completing installation works must be ensured in accordance with construction standards.