The 3/4 inch brass threaded nipple is a fundamental component in central heating systems, particularly in steel-based installations. It is commonly used to connect boiler units to pipe systems, as well as to link various heating components such as radiators, valves and expansion vessels. The component is suitable for both new installations and system modifications, where a secure and durable threaded connection is required. Installers working on residential, commercial or industrial heating systems may encounter this type of fitting when assembling or repairing boiler circuits or secondary heating loops.

Its compact design and threaded ends allow for straightforward integration into existing pipe layouts. The brass construction provides resistance to corrosion and ensures long-term reliability in wet environments. The fitting is typically used in conjunction with other threaded components such as unions, valves and pipe sections to create a complete and leak-free connection. It is particularly useful in applications where flexibility and ease of disassembly are required for maintenance or system adjustments.

Technical parameters

Weight	0.1 kg
Code	2520021
Brand	IVAR

The technical parameters of the IVAR 2520021 include a 3/4 inch size and a brass . These parameters are essential for correct sizing and selection, ensuring compatibility with the rest of the system. The thread size determines the connection capability with other components, while the material choice ensures durability and resistance to thermal expansion and contraction.

Installation and connection

Installation of the 3/4 inch brass threaded nipple involves aligning the threaded ends with the corresponding pipe or fitting. The threads should be cleaned and inspected for damage before assembly. A suitable sealing compound or PTFE tape should be applied to ensure a watertight connection. The fitting is then screwed into place by hand until it is snug, followed by a final tightening with a wrench. It is important to avoid over-tightening, which can damage the threads or cause leaks. Common installation mistakes include using the wrong thread type or failing to apply sufficient sealing material, both of which can lead to system inefficiencies or leaks.

Compatibility and accessories

The IVAR 2520021 is compatible with standard steel and copper pipe systems that use 3/4 inch threaded connections. It is commonly used with other brass fittings such as unions, elbows and valves. For a complete connection, installers may need to order sealing materials such as PTFE tape or pipe thread sealant. Additional components such as pipe sections or valves may also be required depending on the specific application and system design.

Technical background for designers

The threaded design allows for easy assembly and disassembly, which is important for maintenance and system modifications. The fitting functions as a simple but essential link in the hydraulic circuit, ensuring that the flow of heated water or steam is maintained without interruption. The choice of material and design ensures that the component can withstand the operating pressures and temperatures typical of central heating systems. The longevity of the fitting is influenced by the quality of the installation, the condition of the surrounding system and the frequency of maintenance checks.

Service and operation

During operation, the IVAR 2520021 requires minimal maintenance. Regular visual inspections should be carried out to check for signs of corrosion, leaks or thread damage. If any issues are identified, the fitting should be disassembled and inspected for wear or contamination. The sealing material should be replaced if it shows signs of degradation. There are no specific service intervals provided for this component, but it is recommended to inspect it during routine system maintenance.

Frequently asked questions

Can the IVAR 2520021 be used with copper pipe systems?
Yes, the brass construction is compatible with copper pipe systems, provided that the thread sizes match and the connection is properly sealed.

Is the IVAR 2520021 suitable for high-pressure heating systems?
Yes, the fitting is designed for use in central heating systems and can handle the typical operating pressures encountered in such applications.

Can the IVAR 2520021 be used in steam heating systems?
Yes, the brass material and threaded design are suitable for steam heating systems, provided that the system operates within the recommended temperature and pressure limits.

Can the IVAR 2520021 be used in conjunction with other IVAR fittings?
Yes, the fitting is compatible with other IVAR fittings that use the same thread size and type, ensuring a consistent and reliable connection.