Reducing set DN 25/DN 32 - H 24mm PAW.RS

Product detailed description

Reducing sets are essential components in heating systems where different pipe sizes must be connected. In multi-family buildings, commercial properties and industrial facilities, boiler modules often require integration into distribution systems with larger nominal diameters. This is where the IVAR reducing set 3735 plays a key role. It allows for a secure and leak-free transition from DN 25 to DN 32, ensuring compatibility between boiler outputs and collector inlets. The set is commonly used in hydronic heating systems where thermal expansion and pressure fluctuations are part of normal operation.

Such installations demand components that can handle both mechanical stress and thermal cycling. The IVAR 3735 is engineered for environments where the system operates at a nominal pressure of PN 6 and a maximum temperature of +110°C. It is particularly suited for systems with horizontal collectors, where the boiler module is connected at a lower nominal size. The set ensures a stable hydraulic connection and maintains system integrity during operation.

Technical parameters

Operating temperature	+110 °C
Nominal diameter	DN 25
Nominal pressure	PN 6
Code	3735
Brand	IVAR

The operating temperature of +110°C and the nominal pressure of PN 6 are critical for determining the suitability of the reducing set in specific applications. These values influence the choice of materials and sealing methods. The DN 25 nominal diameter refers to the inlet size, while the DN 32 refers to the outlet. These dimensions must be matched with the corresponding pipe sizes in the system to ensure correct flow and pressure distribution.

Installation and connection

The IVAR 3735 is installed as part of a boiler module connection to a horizontal collector. The inlet side is connected to a DN 25 pipe, and the outlet side to a DN 32 pipe. The installer must ensure that the connection threads are clean and free from debris before tightening. It is important to follow the manufacturer's torque specifications to avoid over-tightening, which can damage the sealing surfaces. Common installation errors include mismatched thread types or incorrect orientation of the set, which can lead to leaks or restricted flow.

Compatibility and accessories

The IVAR 3735 is compatible with boiler modules and horizontal collectors that have the specified nominal diameters. It is typically used in conjunction with standard pipe fittings and valves of the same pressure and temperature rating. No additional accessories are required for basic installation, but it is recommended to verify the compatibility of all connected components with the system's operating conditions. The set is designed for integration into PAW systems and is suitable for use with other IVAR components of the same series.

Technical background for designers

The IVAR 3735 operates as a mechanical transition between two pipe sizes. It is constructed from materials that can withstand the thermal and mechanical stresses of a heating system. The design ensures that the flow resistance is minimized while maintaining a secure seal. The integration into the system requires careful consideration of the pressure drop across the reducing set and the overall hydraulic balance. The service life and efficiency of the set depend on the quality of the installation and the maintenance of the sealing surfaces. Regular inspection of the connections is recommended to detect any signs of wear or leakage.

Service and operation

During operation, the IVAR 3735 requires minimal maintenance. The main checkpoints include inspecting the connection for leaks and ensuring that the tightening torque remains within the manufacturer's specifications. No scheduled service intervals are required for this component. However, any signs of corrosion or mechanical damage should be addressed immediately to prevent system failure. The set is designed for long-term use under normal operating conditions, provided that it is installed correctly and the system is maintained according to standard procedures.

Frequently asked questions

Can the IVAR 3735 be used in systems with higher operating temperatures?
It is not recommended to use the set in systems with operating temperatures exceeding +110°C, as this may affect the integrity of the materials and seals.

Is the IVAR 3735 suitable for vertical collector connections?
The set is specifically designed for horizontal collector connections. For vertical applications, a different configuration or component should be used.

Can the reducing set be used with other brands of boiler modules?
Yes, provided that the boiler module has a DN 25 output and the collector has a DN 32 inlet. Compatibility with other brands depends on the thread type and sealing method.

What is the maximum allowable pressure for the IVAR 3735?
The set is rated for a nominal pressure of PN 6. It should not be used in systems with higher pressure levels without consulting the manufacturer's technical data sheet.