Giacomini R553D 1 inch x 3/4 inch 10-Circuit Modular Manifold for Radiant Heating and Cooling Systems, Nickel-Plated Brass

The Giacomini R553D modular manifold is a high-performance component designed for radiant heating and cooling systems. With 10 circuits, 1" main connection (Rp 1" female thread) and 3/4" branch connections (G 3/4" male thread), it ensures efficient distribution of water in hydronic systems. Made of nickel-plated brass, it offers excellent corrosion resistance and durability. The manifold is reversible, allowing use as flow or return manifold, and features 50 mm circuit spacing for easy installation. Compatible with Giacomini R179, R179AM, R178, R178AM fittings.

Advantages

Nickel-plated brass construction provides long-lasting corrosion resistance. Reversible design offers flexibility for flow or return installation. 50 mm circuit spacing simplifies connection of actuators and fittings. High maximum operating pressure (6 bar) and temperature (110 °C) ensure reliable performance.

Suitable for

• Radiant floor heating systems
• Radiant ceiling cooling systems
• Hydronic distribution in residential and commercial buildings

Key specifications

• Product Type: Modular Manifold
• Number of Circuits: 10
• Main Connection: 1" Rp 1" Female Thread
• Branch Connection: 3/4" G 3/4" Male Thread
• Material: Nickel-Plated Brass
• Max Operating Pressure: 6 bar (87 psi)
• Max Operating Temperature: 110 °C (230 °F)
• Circuit Spacing: 50 mm
• Reversible: Yes
• Compatible Fittings: Giacomini R179, R179AM, R178, R178AM
• Series: R553

Recommendations

For optimal performance, use with Giacomini actuators and fittings. Ensure proper sizing and installation according to system requirements. Always follow local codes and manufacturer guidelines.