Quickfinder for Brazed Plate Heat Exchangers

Product catalog summary

Overview

This document provides technical data and quick reference tables for brazed plate heat exchangers manufactured by VAU Thermotech GmbH Co. KG. It includes thermal efficiency values, temperature input/output ranges, and model recommendations for various heating and solar applications.

Sections and Key Information

1. Temperature Input/Output Ranges and Thermal Efficiency

Multiple tables present input and output temperature ranges (in °C) for primary and secondary circuits, alongside corresponding thermal efficiency values (in kW). These tables cover different temperature intervals such as 5 to 15°C, 16 to 30°C, up to 121 to 150°C.

The data is organized to show how different heat exchanger models (e.g., VM 15-10, VM 30-20, VM 60-40) perform under varying temperature conditions. For example, at a primary input of 70°C and secondary output of 50°C, different VM models are recommended depending on the secondary input temperature range.

2. Heat Exchanger Models and Applications

The document references several VM series models (e.g., VM 15-10, VM 30-50, VM 60-80) tailored for specific thermal loads and temperature conditions. These models are suggested for applications such as:

System isolation for boilers and underfloor heating
Solar units with 35% glycol for fresh water heating and swimming pools
Pass-through fresh water heating
Heating buffers and district heating systems

3. Design and Performance Parameters

All heat exchangers are designed to withstand a maximum pressure drop of 20 kPa.
Thermal efficiency is provided in kilowatts (kW) for both primary and secondary circuits.
Temperature ranges for input and output are critical for selecting the appropriate heat exchanger model.

4. Manufacturer Information

VAU Thermotech GmbH Co. KG is the manufacturer, located in Munich, Germany. Contact details include phone and email, and the company website is provided for further information.

Summary of Critical Points

Selection of heat exchanger models depends on the temperature ranges of primary and secondary fluids.
Thermal efficiency varies with temperature conditions and model type.
Pressure drop limitation is 20 kPa for all units, important for system design.
Applications cover a broad range of heating and solar thermal systems.

Recommendations and Best Practices

Use the quickfinder tables to match system temperature conditions with the appropriate VM model.
Ensure system pressure drop does not exceed 20 kPa to maintain performance and reliability.
Consider glycol concentration (35%) in solar unit applications for accurate thermal efficiency estimation.

Catalog excerpts

Quickfinder for Brazed Plate Heat Exchangers-1

Quickfinder for Brazed Plate Heat Exchangers SYSTEM ISOLATION: boiler / underfloor heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 90 70 40 50 70 50 35 45 70 50 40 50 60 50 30 45 Type of heat exchanger SOLAR UNIT Glycol 35%: fresh water heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 50 10 60 70 25 10 60 65 40 10 60 Type of heat exchanger VM 15-10 VM 30-20 VM 30-10 SOLAR UNIT Glycol 35%: Swimming Pool Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 50 20 30 70 25 15 25 65 40 10 20 Type of heat exchanger Pass-through fresh water heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 55 10 60 90 70 10 60 60 50 10 50 Type of heat exchanger VM 15-10 VM 15-10 VM 15-10 Heating buffer Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 70 55 50 65 90 70 50 70 90 55 50 70 Type of heat exchanger VM 30-30 VM 15-10 VM 30-10 District Heating Thermal efficiency kW primary secondary input output input output ° C ° C ° C ° C 130 55 50 90 130 55 50 70 110 55 50 90 110 60 55 80 Type of heat exchanger VM 30-10 VM 15-20 VM 30-20 VM15-30 All heat exchangers are designed to a maximum of 20 kPa pressure drop. All information is subject to errors and printing errors. VAU Thermotech GmbH Co. KG, Schatzbogen 45, 81829 München - Phone: +49 (0) 89 - 45102726 - [email protected] - www.vau-thermotech.de

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