Connection set Hewalex ZPKS 1 DN16 for solar thermal systems, DN16 pipe connection

The Hewalex ZPKS 1 DN16 connection set is designed for solar thermal and hydronic installations where DN16 piping is used. The set contains fittings and connectors intended to facilitate the connection of solar collectors, heat exchangers and circulation circuits. Components are selected to provide secure, leak-tight joints and to allow integration of sensors or control valves when required in domestic or small commercial solar heating systems.

Advantages

The connection set simplifies installation by providing matched fittings for DN16 pipework, reducing the need to source multiple individual components. It supports reliable hydraulic connections suitable for closed-loop solar thermal circuits and is compatible with common copper, stainless steel or PEX piping systems of the same nominal diameter. The design allows for straightforward integration of temperature sensors and shut-off or balancing valves, helping to maintain system performance and serviceability.

Suitable for

• Connecting solar collectors to the circulation loop in domestic solar thermal systems
• Linking heat exchangers or DHW (domestic hot water) circuits using DN16 piping
• Small commercial solar installations and hydronic heating circuits with DN16 lines
• Retrofit or replacement of existing DN16 connections in collector arrays

Key specifications

• Nominal pipe diameter: DN16 (16 mm)
• Set type: connection/fitting set for solar thermal systems
• Intended use: closed-loop solar thermal and hydronic circuits
• Compatibility: fittings for common DN16 pipe materials (copper, stainless steel, PEX) when appropriate adapters are used
• Functionality: enables integration of sensors and valves within the connection points

How to use

Install the Hewalex ZPKS 1 DN16 connection set as part of the collector circuit following applicable plumbing and solar installation practices. Select compatible DN16 tubing and prepare pipe ends according to the chosen connection method (compression, soldering or press-fit where applicable). Assemble the fittings to create leak-tight joints, position sensors or valves in the provided ports if required, and pressure-test the circuit before commissioning. Follow local regulations and the solar system designer's instructions for proper flow direction and thermal insulation of exposed pipework.

Usage recommendations

Use corrosion-resistant pipe materials and maintain thermal insulation around external runs. Verify compatibility of the set's connection type with your pipe material and, if necessary, use manufacturer-recommended adapters. Perform pressure and leak tests after installation and incorporate accessible shut-off valves to facilitate future maintenance.