BPHE ALFA LAVAL CB20 12H 18H 24H 28H 30H 40H 50H 60H 80H
BPHE Model
ALFA LAVAL CB20 12H 18H 24H 28H 30H 40H 50H 60H 80H
Payment Method
T/T, L/C, Western Union, MoneyGram, PayPal, Credit Card
Stock & Shipment
In stock | Fast delivery
Minimum Order Quantity
1 pieces
Price
Negotiation
Packaging Details
Standard Export Packaging
Alfa Laval CB20 BPHE details
Brass Plate Heat Exchanger Model
Alfa Laval CB20 Heat Exchanger Brazed Plate
Keyword
Heat Exchanger Plate Heat Exchanger Brazed Plate
Plate Quantity Range
10–110 Plates
Function
Liquid Vapor Heat Exchange
Capacity
Up to 20 kW
Other Copper Plate Heat Exchanger
Alfa Laval CB20 / alfa laval cb20 40h / alfa laval cb20 60h / alfa laval cb20 24h / alfa laval cb20 28h / alfa laval cb20 18h / alfa laval cb20 30h / alfa laval cb20 80h / alfa laval cb20 50h / alfa laval cb20 12h
DESCRIPTION
If you work with mid range heating and cooling duties, you’ve probably seen the Alfa Laval CB20 everywhere. It’s one of the most widely specified brazed plate heat exchangers (BPHE) in the industry.
The CB20 series gives you a lot of flexibility when it comes to capacity. The lineup starts with compact units like the 12H and 18H, moves up to common mid range options like the 24H, 28H, and 30H, and goes all the way to higher duty models like 40H, 50H, 60H, and the 80H for bigger loads.
Whether you’re putting together a new system or looking for a straight replacement, the CB20 is a solid choice. It has a small footprint easy to fit into crowded cabinets and since it’s gasket-free, you don’t have to worry about seal leaks or replacement downtime. Performance stays stable over time, with minimal degradation.
You’ll find these units working reliably in HVAC systems, chiller loops, heat pump circuits, and industrial process cooling/heating applications.
specification
| Brazed Plate Heat Exchanger Chiller Replacemnet | Copper Brazed Plate Heat Exchanger |
| Keyword | Industrial Brazed Plate Heat Exchangers |
| Plate Number | 10–110 Plates |
| Thickness A (mm) | 8 + (1.50 × n) mm |
| Dimension LWH (mm) | 324 × 94 × A mm |
| Center Distance (mm) | 46 mm / 270 mm |
| Weight (kg) | 0.6 + (0.08 × n) kg |
| Volume (L) Q1Q2 Side / Q3Q4 Side | 0.028 L / 0.028 L per channel |
| Designed Pressure | Max 16 bar (depending on version) |
| Designed Temperature | -196°C ~ +225°C |
| Plate Materials | Stainless Steel 316L / Copper Brazing |
| Capacity | Up to 20 kW |
Alfa Laval CB20 – Media Compatibility Guide
Standard Compatible Media
The Alfa Laval CB20 brazed plate heat exchanger is mainly used for clean, pumpable fluids in heating, cooling, and process circulation systems. In actual industrial applications, it is commonly selected for water-based systems with relatively stable operating conditions.
Typical compatible media include:
- Cooling water
- Hot water and chilled water
- Ethylene glycol and propylene glycol solutions
- Lubricating oil and thermal oil
- Standard HVAC and process-side circulation fluids
- Secondary loops in refrigeration systems
The CB20 is widely applied in:
- HVAC systems
- Chiller circulation loops
- Heat pump systems
- Oil cooling equipment
- Industrial heating and cooling processes
For standard closed-loop systems using clean fluids, the CB20 generally provides stable heat transfer performance with low maintenance requirements.
Corrosive Media – Important Considerations
Like most copper-brazed plate heat exchangers, the CB20 is not designed as a universal corrosion-resistant unit. Media compatibility mainly depends on the fluid chemistry and operating conditions.
The standard CB20 structure uses:
- 316L stainless steel plates
- Copper brazing material
This material combination performs well with neutral or mildly corrosive fluids, but additional evaluation is recommended before using aggressive chemical media.
Media Requiring Careful Verification
The following fluids should always be checked before selection:
- High-chloride water
- Seawater or brine
- Strong acids or alkalis
- Ammonia-related fluids
- Amines or chemical solvents
- Any fluid that may attack copper or stainless steel
In maintenance projects, corrosion problems are often related not only to the fluid itself, but also to temperature, concentration, and long-term operating conditions.
Key Factors Affecting Compatibility
Before selecting a CB20 for corrosive or special fluids, engineers usually confirm the following:
- Fluid name and chemical composition
- Concentration level
- Maximum operating temperature
- Chloride content
- System pressure and circulation conditions
For example, some glycol systems operate normally at low chloride levels, but corrosion risk may increase significantly under high temperature or poor water quality conditions.
Practical Selection Recommendations
Generally Suitable Applications
The standard copper-brazed CB20 is commonly used for:
- Cooling water systems
- Glycol circulation loops
- Lubricating oil cooling
- Standard industrial heating fluids
- Clean closed-loop HVAC systems
Applications Requiring Additional Review
Extra material verification is recommended for:
- Seawater cooling
- Brine systems
- High-chloride process fluids
- Acid or alkaline solutions
- Ammonia-related applications
In some cases, a nickel-brazed plate heat exchanger or another heat exchanger design may be a better long-term solution.
Final Recommendation
For most HVAC, heating, cooling, and standard industrial circulation duties, the CB20 offers reliable and compact heat exchange performance.
However, for corrosive or chemically aggressive media, material compatibility should always be evaluated before selection. In practical projects, providing the following information in advance helps reduce the risk of corrosion, perforation, or leakage during operation:
- Fluid type
- Concentration
- Maximum working temperature
- Chloride content
- Operating pressure
This is especially important for replacement projects where the original operating conditions may already have caused internal corrosion or brazing damage.
Direct Contact Channels:
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