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Alfa Laval Brazed Plate Heat Exchanger

Sweden Alfa Laval brazed plate heat exchangers (BPHEs) are highly efficient, compact heat transfer solutions engineered for the demanding conditions of the marine industry. Constructed from stamped corrugated stainless-steel plates brazed together as a single unit in a vacuum furnace using copper or nickel,aluminum,this robust design is ideal for the space-constrained, high-vibration, and corrosive marine environment. They are widely used in key thermal management applications onboard ships, including central cooling systems, jacket water cooling, lube oil cooling, fuel heating, and refrigeration/air conditioning systems, ensuring the reliability and efficiency of vessel propulsion and auxiliary systems.

Country

瑞典


Key Product Series & Parameters

Alfa Laval offers a range of BPHE series to suit different requirements. The core series are outlined below:

Series

Key Features

Max. Design Pressure

Connections

Typical Applications

CB / CB-HR

CB: General-purpose, cost-effective. 

CB-HR: High-resistance design, optimized for low flow/high viscosity fluids, offering higher heat transfer efficiency.

Up to 45 bar

Threaded

Refrigeration, Heat Pumps, Oil Cooling

CH / CH-H

Large-sized units with extensive heat transfer area. 

CH-H is a high-pressure version with enhanced pressure-bearing capability.

CH: 30 bar

CH-H: 45 bar

Flanged

Large Heat Pumps, Industrial Chillers

CX

Ultra-compact design with minimal dimensions, suitable for applications where space is extremely limited.

32 bar

Threaded

Micro Heat Pumps, Small Unit Applications

NX

Utilizes nickel as the brazing material instead of copper. Provides superior corrosion resistance for aggressive media like ammonia (R717) and seawater.

27 bar

Threaded/Flanged

Ammonia Refrigeration, Chemical Processes

 

General Parameter Range:

Design Pressure: Up to 45 bar (depending on series).

Design Temperature: Standard range: -196°C to +225°C (dependent on brazing material).

Plate Material: Stainless Steel AISI 304 / 316.

Brazing Material: Copper or Nickel,Aluminum.


Product Features

1. Superior Heat Transfer Efficiency: The unique corrugated plate pattern induces high turbulence in the media flow, which disrupts the thermal boundary layer and results in very high heat transfer coefficients.

2. Compact and Space-Saving: They offer a significantly smaller footprint and are much lighter than traditional shell-and-tube heat exchangers for the same heat duty.

3. Robust and Maintenance-Free: The fully-brazed construction eliminates the risk of gasket leakage, enables resistance to higher pressure and thermal shock, and ensures a long, maintenance-free service life.

4. Low Operating Cost: High efficiency leads to reduced energy consumption. Combined with minimal maintenance needs, the total life cycle cost is highly competitive.

5. Flexible and Adaptable: A wide variety of models, sizes, and material combinations are available to meet diverse requirements for media, temperature, and pressure.


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