Brass straight couplings are essential components in hydronic heating systems, used to connect pipes and fittings in residential, commercial and industrial buildings. These fittings are commonly installed in heating systems, pipe networks and domestic hot water circuits. Installers and technicians use them to create secure, leak-free connections between threaded components. The design allows for straightforward installation using standard tools, ensuring compatibility with standard pipe sizes and thread types.

When working with heating systems, it is important to select the correct coupling size and type to ensure proper system performance and longevity. The coupling must be compatible with the pipe material and thread standard used in the installation. This ensures that the connection remains tight and functional under normal operating conditions.

Technical parameters

Weight	0.1 kg
Code	2520071
Brand	IVAR

The technical parameters of the coupling are crucial for proper sizing and selection. The 3/4 inch size is suitable for connecting standard heating pipes. The internal and external threads must match the corresponding pipe and threads to ensure a secure connection. The weight of the coupling is 0.1 kg, which is typical for brass fittings of this size.

Installation and connection

To install the brass straight coupling, first ensure that the pipe ends are clean and free of debris. Apply a suitable thread or PTFE tape to the male thread to create a watertight seal. Insert the coupling between the two threaded components and tighten using a wrench or pliers. It is important to avoid over-tightening, which can damage the threads or the fitting. Check that the coupling is aligned with the pipe axis to prevent stress on the connection. Common installation mistakes include using the wrong thread type, failing to apply sealant, and improper tightening, which can lead to leaks or connection failure.

Compatibility and accessories

This coupling is compatible with standard heating pipes and fittings that use the G thread type according to ISO 228. It is suitable for use with , and other standard pipe materials. To complete the installation, ensure that the corresponding pipe ends and fittings are available. Additional components such as thread sealant, wrenches and pliers may be required for installation. Related products include other brass fittings and couplings of the same brand and size.

Technical background for designers

The coupling operates by connecting two threaded components using a secure, leak-free connection. The brass material provides good resistance and mechanical strength, making it suitable for use in heating systems. The internal and external threads are manufactured according to ISO 228 standards, ensuring compatibility with standard pipe fittings. The design allows for easy installation and maintenance. The service life of the coupling depends on the quality of the installation, the operating conditions and the compatibility with the connected components.

Service and operation

Regular inspection of the coupling is recommended to ensure that the connection remains secure and leak-free. Check for signs of corrosion, wear or damage to the threads. If a leak is detected, the coupling should be disassembled, cleaned and resealed. No specific service intervals are provided, but it is good practice to inspect the coupling during routine system maintenance. Proper installation and use of thread sealant can significantly extend the service life of the coupling.

Frequently asked questions

Can this coupling be used with copper pipes?
Yes, the coupling is compatible with copper pipes as long as the thread type and size match the pipe and fittings.

Is PTFE tape required for sealing the connection?
Applying PTFE tape or thread sealant is recommended to ensure a watertight connection and prevent leaks.

Can this coupling be used in hot water systems?
Yes, the coupling is suitable for use in hot water systems as it is designed for hydronic heating applications.

What tools are needed for installation?
A wrench or pliers is required to tighten the coupling. Ensure that the tools are suitable for the size of the coupling and the connected components.