REHAU expansion kit for RAUTHERM SPEED manifold HKV-P with 16 mm coupling

The REHAU expansion kit for RAUTHERM SPEED manifold HKV-P with 16 mm coupling is an accessory designed to extend the RAUTHERM SPEED manifold system. It provides a compatible mechanical connection point for adding extra circuits or components to the HKV-P manifold assembly used in hydronic heating and underfloor heating systems. The kit is intended to integrate smoothly with existing RAUTHERM SPEED installations to increase capacity or adapt the manifold layout without replacing the main manifold.

Advantages

The expansion kit offers a compact and precise coupling solution sized for 16 mm piping, ensuring reliable mechanical connection and alignment with RAUTHERM SPEED components. It simplifies installation of additional circuits by providing pre-matched dimensions and compatibility with the HKV-P manifold design. The accessory reduces the need for custom fittings and helps maintain consistent hydraulic performance across connected circuits.

Suitable for

• Extending RAUTHERM SPEED HKV-P manifolds with extra heating circuits
• Adding distribution branches to underfloor heating systems
• Modifying manifold layouts during renovation or expansion
• Creating connection points for additional valves, flow meters or accessories

Key specifications

• Compatibility: designed for RAUTHERM SPEED HKV-P manifold assemblies
• Coupling size: 16 mm mechanical coupling for pipe connection
• Application: hydronic heating and underfloor heating distribution
• Mounting: intended for inline integration with HKV-P manifold ports

How to use

Install the expansion kit by shutting down the heating circuit and isolating the relevant manifold section. Remove any blanking cap or existing end fitting from the target HKV-P port and fit the expansion coupling according to RAHAU-compatible orientation. Ensure the 16 mm pipe is cut square, deburred and inserted fully into the coupling; secure according to the manifold’s mechanical connection requirements. After mechanical installation, pressure-test the extended manifold section and restore system operation following applicable commissioning procedures.

Usage recommendations

Use the expansion kit only with RAUTHERM SPEED HKV-P manifolds and 16 mm piping to preserve system compatibility and hydraulic balance. Follow manufacturer guidance for torque, sealing and pressure testing. For system changes affecting overall flow or temperature balance, adjust valves or commissioning settings to maintain even distribution across all circuits.