Connection set Comap VKO straight module with cones, thermostatic head and PEX fittings 16x2 GW3/4

The Comap connection set with a VKO straight module, thermostatic head and PEX fittings 16x2 with GW3/4 thread is designed for hydronic heating distribution, offering a compact solution for radiator or underfloor heating connections. The set integrates a straight VKO module with cone adapters, a thermostatic control head and PEX compression fittings sized for 16x2 pipework, enabling regulation of flow and temperature in heating circuits while matching standard GW3/4 threaded connections.

Advantages

This connection set provides reliable flow control through the VKO straight module combined with cone adapters for secure sealing. The included thermostatic head enables temperature regulation at the point of connection, supporting stable room climate control. PEX fittings sized 16x2 ensure compatibility with common flexible pipe systems and allow straightforward mechanical connection without soldering. The design supports professional installation practices and offers a compact footprint suitable for confined installation spaces.

Suitable for

• Connecting radiators to hydronic central heating systems
• Integrating underfloor heating manifolds with 16x2 PEX pipework
• Professional plumbing and heating installations requiring GW3/4 threaded interfaces
• Retrofit or new-build projects where thermostatic control at the valve is needed

When it may not be suitable

This set is intended for use with 16x2 PEX piping and GW3/4 threaded connections; it may not be suitable where different pipe diameters, materials or thread standards are required. Systems that require electronic or remote thermostatic control rather than a local thermostatic head will need alternative components.

Key specifications

• Connection module type: VKO straight module with cone adapters
• Thermostatic control: manual thermostatic head included
• Pipe connection: PEX fittings for 16x2 pipe
• Thread interface: female GW3/4 threaded connection
• Application: hydronic heating distribution (radiators and underfloor connections)

How to use

Install the VKO straight module in the designated manifold or valve body and secure the cone adapters to ensure a leak-free seal. Fit the 16x2 PEX pipe into the compression fittings according to the fitting manufacturer’s instructions, ensuring correct insertion depth and proper tightening. Mount the thermostatic head onto the valve spindle and set the required temperature range on the head. After installation, bleed the heating circuit and check for leaks, then verify the thermostatic function by observing temperature changes at the radiator or floor sensor location.

What to consider before purchase

• Confirm that the heating system uses 16x2 PEX piping
• Verify compatibility with GW3/4 threaded connections on existing valves or manifolds
• Ensure a local thermostatic head meets your control needs versus room or remote thermostats
• Check available installation space for a straight VKO module

Usage recommendations

For reliable performance, use with compliant 16x2 PEX pipe and follow torque values and insertion guidelines provided by the fitting manufacturer. After installation, perform a pressure test and regular inspections during the first heating season to confirm sealing and thermostatic response.