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Plate heat exchanger B3-23-20 - 90kW, 20 plates

Plate heat exchanger B3-23-20 - 90kW, 20 plates

Regular price €119,00 EUR
Regular price Sale price €119,00 EUR
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Taxes included.

In stock

Connection
Insulation

For order quantities over 10 pieces please send inquiry

Technical specifications

  • Model typ: B3-23-20
  • Plates: 20
  • Operating temperature: -190°C to +225°C
  • Connections: F1/F2/F3/F4= 4x 3/4 inch
  • Size: L-315mm B-73mm H-52mm
  • Flow rate: 4 m³/h.
  • Power: 90kW
  • Operating pressure: 30 bar
  • Material: 304 stainless steel
  • Solder material: Copper
  • Volume: 0,80 L
  • Circuit: F3➞F1 │ F2 ➞F4
  • Plate thickness: 0,3mm
  • Exchanger area: 0,46 m²
  • Weight: 2,2 Kg

Article details - Insulation

  • Material thickness: 20mm
  • Material: PUR-Rigid foam
  • Temperature resistance: up to 250°C
  • Size: L-335mm B-93mm H-72mm
  • Low maintenance
  • Energy efficient
  • Environmentally friendly

Shipping Information

Shipping costs

Shipping is free for orders within Germany. For deliveries to other European countries, the shipping fee is €13.99.

Delivery time

The usual shipping time is 2-4 working days. We will endeavor to ship your order as quickly as possible.

Shipping service provider

Delivery is via DHL as standard. If you wish, we can also commission another shipping service provider.

Shipment tracking

After confirming your order, you will receive an email with the shipping information.

Express shipping

We offer express shipping for an additional charge of €16.99. To use this option, please indicate in the shopping cart in the "Special order instructions" field that you would like express shipping. We will then arrange for your order to be shipped as quickly as possible.

Return Information

If you would like to return your order, please contact us using the contact form . All further information will be sent to you.

Billing information

If you require a VAT invoice, please send us a request via our contact form or by email to info@alex-depot.de. Alternatively, you can also indicate this in the shopping cart under "Special Order Instructions" and we will provide you with the invoice immediately.

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Model Comparison

MODEL NUMBER OF PLATES VOLUME WEIGHT POWER FLOW RATE HEAT EXCHANGE AREA SIZE (LxWxH)
B3-12 Models
B3-12-12 12 0,22 L 0,9 kg 25 kW max. 4 m³/h 0,114 m² 191 mm x 73 mm x 34 mm View Product
B3-12-20 20 0,36 L 1,3 kg 45 kW max. 4 m³/h 0,24 m² 191 mm x 73 mm x 52 mm View Product
B3-12-30 30 0,54 L 1,7 kg 65 kW max. 4 m³/h 0,36 m² 191 mm x 73 mm x 67 mm View Product
B3-12-40 40 0,72 L 1,88 kg 80 kW max. 4 m³/h 0,48 m² 191 mm x 73 mm x 97 mm View Product
B3-12-50 50 0,90 L 2,6 kg 90 kW max. 4 m³/h 0,60 m² 191 mm x 73 mm x 112 mm View Product
B3-12-60 60 1,08 L 3,1 kg 120 kW max. 4 m³/h 0,80 m² 191 mm x 73 mm x 127 mm View Product
B3-23 Models
B3-23-20 20 0,80 L 2,2 kg 90 kW max. 4 m³/h 0,46 m² 315 mm x 73 mm x 52 mm View Product
B3-23-30 30 1,20 L 2,8 kg 135 kW max. 4 m³/h 0,69 m² 315 mm x 73 mm x 74 mm View Product
B3-23-40 40 1,60 L 3,5 kg 180 kW max. 4 m³/h 0,92 m² 315 mm x 73 mm x 96 mm View Product
B3-23-50 50 2,00 L 4,2 kg 225 kW max. 4 m³/h 1,15 m² 315 mm x 73 mm x 119 mm View Product
B3-32 Models
B3-32-20 20 1,00 L 3,82 kg 115 kW max. 12 m³/h 0,64 m² 286 mm x 116 mm x 58 mm View Product
B3-32-30 30 1,50 L 4,8 kg 175 kW max. 12 m³/h 0,96 m² 286 mm x 116 mm x 82 mm View Product
B3-32-40 40 2,00 L 6,34 kg 230 kW max. 12 m³/h 1,28 m² 286 mm x 116 mm x 106 mm View Product
B3-32-50 50 2,50 L 7,60 kg 285 kW max. 12 m³/h 1,60 m² 286 mm x 116 mm x 135 mm View Product
  • sendungsverfolgung-alex-depot

    Shipment tracking

    After your order has been dispatched, we will keep you informed about the delivery status. Shipping within Germany is free!

  • sorglose-ruecknahme

    Carefree return

    You have 30 days to complete your return easily and stress-free – without any hassle!

  • 3-jahre-garantie-alex-depot

    3 year guarantee

    If you encounter any problems with your product, please do not hesitate to contact us using the contact form.

  • Professional advice

    We will be happy to advise you when purchasing so that you can find the right product for your needs.

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Energy-saving, cost-saving, durable

insulation shells

Insulation shells make a significant contribution to increasing efficiency by improving heat transfer. By reducing heat loss, maximum energy utilization is ensured, which not only optimizes heating performance but also leads to noticeable cost savings.

Learn more...

Versatile, User-Friendly, Secure

Various connections

Our plate heat exchangers are available in a variety of connection configurations to meet different requirements.

  • B3-12 models: 2x 1/2 inch & 2x 3/4 inch and 4x 3/4 inch
  • B3-23 models: 4x 3/4 inch
  • B3-32 models: 1 inch
    No matter which model you choose, our plate heat exchangers guarantee reliable performance and optimal adaptability to your specific needs.

einsatzorte-plattenwaermetauscher

Environmentally friendly, adaptable, reliable

areas of application

Plate heat exchangers can be used in any number of locations. Common locations would be:

- Air conditioning | Underfloor heating cooling/solar technology

- Swimming pool water treatment | Industrial heating technology

- Water chiller heat preservation | Heat supply networks

- Combined heat and power plants | Heat pumps

- Building air conditioning | Industrial heating technology

- Cooling circuits | District heating transfer

- Heating systems | Refrigeration technology

  • Vorteile der Kupferlötung

    Advantages of copper soldering

    Learn why copper increases the energy efficiency of plate heat exchangers and how it contributes to cost savings and a longer service life.

    Advantages of copper soldering

    Learn why copper increases the energy efficiency of plate heat exchangers and how it contributes to cost savings and a longer service life.

  • Funktionsweise - Plattenwärmetauscher

    How it works - plate heat exchanger

    The secret of efficient heat transfer lies in the use of the countercurrent principle. Find out why copper brazed plate heat exchangers are so effective!

    How it works - plate heat exchanger

    The secret of efficient heat transfer lies in the use of the countercurrent principle. Find out why copper brazed plate heat exchangers are so effective!

  • Vorteile einer Isolierung

    Benefits of Insulation

    PUR rigid foam insulation optimizes the efficiency of your plate heat exchanger and minimizes energy loss. Find out more about the advantages in the article.

    Benefits of Insulation

    PUR rigid foam insulation optimizes the efficiency of your plate heat exchanger and minimizes energy loss. Find out more about the advantages in the article.

  • Aufbau - Plattenwärmetauscher

    Structure - Plate heat exchanger

    Discover how copper-brazed plate heat exchangers enable efficient heat transfer thanks to their special design and are convincing in many applications.

    Structure - Plate heat exchanger

    Discover how copper-brazed plate heat exchangers enable efficient heat transfer thanks to their special design and are convincing in many applications.

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Frequently asked questions

How do I receive an invoice for my order?

If you require an invoice with VAT shown, please send us a request via our contact form or by email to info@alex-depot.de. We will then provide you with the invoice immediately.

How do I claim my warranty and return?

We offer a 3-year warranty on our products, which covers defects in materials and workmanship. In the event of defects within the warranty period, please contact us to discuss the process for a return or exchange. You have 30 days from receipt of your order to make returns. Please contact us to obtain a return authorization and clarify further steps. Make sure the products are in their original packaging.

When will unavailable products be available again?

If a product is currently unavailable, we will do our best to get it back in stock as quickly as possible. Please let us know if you are missing a specific product and we will see if we can get it for you ahead of schedule.

Is it possible to receive my order via express shipping?

Yes, we offer express shipping for an additional charge of €16.99. To use this option, please indicate that you require express shipping in the "Special Order Instructions" field in your shopping cart. We will then arrange for your order to be shipped as quickly as possible.

Do you offer customized plate heat exchangers?

Yes, we offer customized plate heat exchangers designed to meet our customers' specific requirements. If you require customized solutions, please contact us with your requirements and we will be happy to help you find the right heat exchanger for your application.

How do you calculate the average temperature difference?

The mean temperature difference of a plate heat exchanger can be calculated by several different methods, depending on the type of heat exchanger and the specific conditions. A common method is the Logarithmic Mean Temperature Difference. Here's how you can calculate it:

Formula for Logarithmic Mean Temperature Difference

LMTD = (ΔT1 - ΔT2) / ln(ΔT1 / ΔT2)

Variables
  • LMTD: logarithmic mean temperature difference
  • ΔT1: temperature difference at one end of the heat exchanger
  • ΔT2: temperature difference at the other end of the heat exchanger
Example
  • Temperature of hot liquid at inlet (Th): 150 °C
  • Temperature of cold liquid at inlet (Tc): 30 °C
  • Temperature of hot liquid at outlet (Th'): 80 °C
  • Temperature of cold liquid at outlet (Tc'): 60 °C
1. Calculation of ΔT1 & ΔT2

ΔT1 = Th - Tc = 150 °C - 30 °C = 120 °C

ΔT2 = Th' - Tc' = 80 °C - 60 °C = 20 °C

2. Calculation of the mean temperature difference

LMTD = (120 °C - 20 °C) / ln(120 °C / 20 °C)

LMTD ≈ 55.8 °C

How is the heat flow calculated?

Q = U * A * LMTD

  • Q: heat flow (W)
  • U: total heat transfer coefficient (W/m²·K)
  • A: heat transfer area (m²)
  • LMTD: logarithmic mean temperature difference (K)

or

Q = ṁ * cp * LMTD

  • Q: heat flow (W)
  • ṁ: mass flow rate (kg/s)
  • cp: specific heat capacity (J/kg·K)
  • LMTD: logarithmic mean temperature difference (K)

How should I connect my heat exchanger?

cocurrent and countercurrent principle

The heat energy that can be transferred in a plate heat exchanger is not only determined by the size of the exchange surface and the heat transfer coefficient (k), but is also significantly influenced by the flow directions of the media involved. If both media flow in the plate heat exchanger in the same direction, this is referred to as the cocurrent principle. If they flow in opposite directions, however, this is the countercurrent principle.

The flow direction has a significant influence on the average temperature difference between the media, which in turn determines the efficiency of heat transfer.

Temperature curve with the direct current principle | Temperature curve with the countercurrent principle

Theoretical consideration of the connection options of a plate heat exchanger:

In this example we assume two media with the same heat capacity and the same mass flow.

  • Medium 1: 80 °C
  • Medium 2: 20 °C

With the cocurrent principle, the maximum temperature that can be reached for both media would be 50 °C, which corresponds to the mixing temperature. With the countercurrent principle, however, medium 2 could reach a temperature of up to 80 °C, while medium 1 can be cooled to 20 °C.

This means that the countercurrent principle allows a larger amount of heat to be transferred using the same exchange surface area.

How do I find the right plate heat exchanger for my application?

Finding the right plate heat exchanger doesn't have to be complicated. If you have any questions or need support, don't hesitate to contact us. We'll be happy to help you choose the right model for your needs.