Differential pressure regulating combination valve, DN25, 300...600 mBar V5001PY2025

Combined automatic valve with differential pressure regulation – precise control of the installation

The combined automatic valve with differential pressure regulation, with a nominal diameter of DN25 and an adjustment range of 300…600 mBar, is a key element in heating and cooling systems. It is used for dynamic hydraulic balancing, ensuring optimal flow and thermal comfort in the building. This is particularly important in installations with variable flows, such as two-pipe heating systems, where maintaining a constant differential pressure is crucial for efficient operation.

The valve is designed for mounting on return lines and works with the Kombi-S shut-off valve, which provides a reference pressure signal via an impulse tube. Its compact design facilitates installation even in confined spaces. Made of dezincification-resistant brass (DZR), it guarantees durability and corrosion resistance. Additionally, the included thermal insulation minimizes heat loss.

Functionality and construction for professionals

The V5001PY2025 valve combines regulating and shut-off functions, increasing installation flexibility. It has a position indicator to facilitate reading the valve status and SafeCon™ type measuring ports for quick and precise flow measurements. The possibility of sealing the setting ensures safety and prevents accidental changes in operating parameters. Equipped with manual operation, it allows for precise setting of the differential pressure using a clear continuous scale – without the need for additional tools. The Kvs value at 8.7 ensures a high flow of heating or cooling medium.

The valve design is based on internal gas tapered BSPP-G (ISO 228-1) threaded connections with a diameter of 25 mm, ensuring tightness and easy integration with existing hydraulic infrastructure. Pressure class PN 16 and maximum working pressure of 16 bar guarantee safe operation even in demanding conditions. The housing material – brass – provides resistance to the factors present in CH installations.

Key features and benefits

• Precise regulation: Maintaining a constant differential pressure regardless of changing flow.
• Versatility: Can be used in heating and cooling systems.
• Durability: Made of dezincification-resistant brass (DZR).
• Easy installation: Compact design facilitates installation even in tight spaces.
• Safety: The possibility of sealing the setting prevents accidental changes in operating parameters.
• Convenience: Clear Δp setting scale in kPa and manual setting selection without tools.
• Quick measurements: SafeCon™ type measuring ports facilitate system diagnostics.
• Warranty: 5 years from the date of manufacture confirms the high quality of the product.

This valve is a reliable solution for installers looking for an effective way to hydraulically balance installations and for end users who value thermal comfort and energy savings.