Double connector with SC 28 x 5/4" brass / polished, model 2263 265700

Solid and Fast Pipe Joining Method

The two-piece VIEGA SC‑Contur coupling is a solution that allows pipes with a diameter of 28 mm (3/4 inch) to be joined with a 1 1/4 inch thread into a single, durable assembly. Thanks to the bronze press fitting (raw state), the component is corrosion-resistant and withstands varying operating conditions. The built-in EPDM sealing element ensures a flat, leak-free seal even at a maximum operating pressure of 16 bar and a medium temperature of up to 110 °C.

SC‑Contur immediately signals unpressed connections – leaks are visible during system filling, eliminating costly post-installation corrections.

Practical Benefits

• Fast installation – the first MZ (crimp coupling) connection accepts the system pipe without additional tools; the second connection, with a metric internal thread, enables attachment of threaded components.
• Safety – the monomeric rubber EPDM seal is resistant to aging and chemicals, ensuring long-term leak-tightness.
• Versatility – suitable for sanitary, heating, and domestic hot water systems in accordance with UBA‑Positivliste requirements.
• Compact size – a length of approximately 4 cm allows installation in tight spaces without compromising strength.
• Resistance to operating conditions – the minimum permissible medium temperature is ‑25 °C and the maximum is 110 °C, making the coupling universal for both cold and hot circuits.

Application and Installation Guidelines

The product is intended for connections of bronze system pipes and components with metric threads. Due to its simple shape ("straight") and one-piece construction, it can be used in both underfloor and above-floor installations. Installation is recommended to be performed exclusively by qualified personnel – proper pressing of the press fitting and leak testing using SC‑Contur are key to trouble-free operation.

In summary, the VIEGA SC‑Contur 28 × 1 1/4″ double coupling combines durability, ease of installation, and reliable performance, making it ideal for any modern sanitary or heating project.