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SonFlow SFB10 brazed plate heat exchanger
KONTECH is an official distributor of SonFlow A/S for Bulgaria, Greece, Cyprus and Romania. The SonFlow SFB10 series includes the SFB18 and SFB19 models, which are the smallest plate heat exchangers in the SonFlow product range in terms of overall dimensions. They are intended for HVAC, heat pump, refrigeration and industrial applications.
SonFlow SFB18 and SFB19 brazed plate heat exchangers
The SonFlow SFB10 series includes two individual models: SFB18 and SFB19. They are intended for professional HVAC, heating, cooling, heat pump, refrigeration and industrial applications where compact dimensions and operation at specifically defined parameters are important.
The models have a design pressure of 25 bar, a temperature range from −100°C to +185°C and ¾″ or 1″ threaded connections. SFB18 is available with TL and TXL plate profiles, while SFB19 is available with the TK plate profile. The appropriate model and configuration are selected according to the technical parameters of the application.
The units have a copper-brazed construction without replaceable gaskets. They are manufactured from embossed AISI 316 stainless steel plates, copper-brazed in a vacuum process. The resulting plate pack provides a large heat transfer surface relative to the overall dimensions of the unit.
SFB18 and SFB19 are configured individually and are available with 11, 15, 21, 31, 41, 51, 61, 71, 81, 91 or 101 plates. The selection of model, plate profile and number of plates depends on the fluids, flow rates, inlet and outlet temperatures, required heat duty and allowable pressure drop.
SFB18 and SFB19 are the smallest plate heat exchangers in the SonFlow product range by overall dimensions. SFB18 measures 320 × 95 mm, while SFB19 measures 329 × 93 mm. Their compact dimensions make them suitable for installations with limited space, provided that the required heat duty, flow rates, allowable pressure drop and connections permit the use of the respective model.
SFB18 and SFB19 are not held in stock and are supplied to order. The selected model, number of plates, plate profile, connections and current delivery time are confirmed in the quotation.
The price of a SonFlow SFB10 heat exchanger depends on the selected model and configuration. The final price is confirmed in the quotation after the technical parameters of the application have been reviewed.
Advantages when selecting and ordering SonFlow SFB10 heat exchangers
SonFlow SFB10 includes two compact models that are configured according to the operating parameters of the application. The main selection and supply advantages are:
- Two individual models in the smallest overall size range of the SonFlow SFB product line
- Unit width of 95 mm for SFB18 and 93 mm for SFB19
- Selection of the appropriate model, plate profile and number of plates according to the required heat duty and allowable pressure drop
- Configurations with 11 to 101 plates
- TL and TXL plate profiles for SFB18 and TK plate profile for SFB19
- ¾″ and 1″ threaded connections according to the requirements of the piping system
- Design pressure of 25 bar
- Temperature range from −100°C to +185°C
- Price determined according to the selected model and configuration
- Supplied to order
- Delivery time confirmed in the quotation
For applications requiring a gasketed construction and mechanical access to the plate pack, see the SonFlow gasketed plate heat exchangers.
Typical applications for SonFlow SFB10 brazed plate heat exchangers
SFB18 and SFB19 are used as brazed plate heat exchangers in systems with defined operating parameters and fluids compatible with AISI 316 stainless steel and copper. Typical applications include:
- Central heating and cooling systems
- HVAC installations
- Heat pump systems
- Refrigeration systems
- Solar thermal systems
- Oil cooling
- Data centres
- Industrial processes
- Marine systems
- Replacement of an existing brazed plate heat exchanger when the dimensions, connections and operating parameters are compatible
For refrigeration applications, the refrigerant, phase-change process, maximum pressure and allowable pressure–temperature combination must be verified.
For fluids containing solid particles or fibres, as well as fluids with high viscosity or an increased risk of blockage, a Free Flow plate heat exchanger or another type of heat exchanger should be considered according to the application.
Do you have a specific application?
Send us the operating parameters to receive a proposal for a suitable model and configuration, price and delivery time.
Main technical characteristics of SonFlow SFB10
- Construction and materials: embossed AISI 316 stainless steel plates, copper-brazed in a vacuum process, without replaceable gaskets
- Overall dimensions: SFB18: 320 × 95 mm; SFB19: 329 × 93 mm
- Design pressure: 25 bar
- Temperature range: from −100°C to +185°C
- Plate profiles: TL and TXL for SFB18; TK for SFB19
- Number of plates: from 11 to 101
- Connections: ¾″ female or male pipe thread, 1″ pipe thread and NPT threads on request
- Standards and compliance: EN 13445, PED 2014/68/EU and ASME Section VIII, Division 1
- Available accessories: insulation jacket, support feet and mounting brackets
The stated design pressure and temperature range are design limits of the models and are not sufficient for selecting a heat exchanger. The allowable pressure–temperature combination must be verified for the specific configuration.
The appropriate model, plate profile, number of plates and L1 plate pack depth are determined according to the fluids, flow rates, inlet and outlet temperatures, required heat duty and allowable pressure drop. The quotation specifies the model, plate profile, number of plates, connections and corresponding L1 depth.
Enquiry for an SFB10 plate heat exchanger
To prepare a proposal for a suitable model and configuration from the SFB10 series, please provide the main operating parameters of the application:
- Fluid on side 1 and side 2
- Concentration of any additives
- Flow rate on side 1 and side 2
- Inlet and outlet temperatures on both sides
- Required heat duty, if known
- Operating pressure and design pressure
- Allowable pressure drop
- Preferred connection type
- Information about the application
- Whether the requirement is for a new system or a replacement
- Delivery location and delivery requirements
When replacing an existing heat exchanger, please provide a photograph of the nameplate, the overall dimensions and information about the connections.
The supplied parameters are used to determine the appropriate model, plate profile, number of plates and configuration and to prepare a commercial quotation.
Technical drawing and dimensions of SonFlow SFB10
Technical data for SFB18
| Parameter | Data |
|---|---|
| Type |
Brazed plate heat exchanger |
| Series |
SonFlow SFB10 |
| Model |
SFB18 |
| Construction |
Copper-brazed, gasket-free |
| Plate material |
Stainless steel AISI 316 |
| Brazing material |
Copper |
| Design pressure |
25 bar |
| Operating temperature range |
from -100°C to +185°C |
| Standards |
EN 13445, PED 2014/68/EU ASME Section VIII, Div. 1 |
| Connection options |
¾″ female pipe thread ¾″ male pipe thread 1″ pipe thread ISO 7-R NPT on request |
| Number of plates |
11, 15, 21, 31, 41, 51, 61, 71, 81, 91, 101 |
| Dimension L1 |
L1 = N × 1,3 + 8 mm |
| Main dimensions |
A: 320 mm (A = height) B: 95 mm (B = width) C: 270 mm (C = vertical centre-to-centre distance) D: 45 mm (D = horizontal centre-to-centre distance) E: 28 mm (E = connection length) |
| Accessories |
Insulation jackets Foundation feet |
Technical data for SFB19
| Parameter | Data |
|---|---|
| Type |
Brazed plate heat exchanger |
| Series |
SonFlow SFB19 |
| Model |
SFB22 |
| Construction |
Copper-brazed, gasket-free |
| Plate material |
Stainless steel AISI 316 |
| Brazing material |
Copper |
| Design pressure |
25 bar |
| Operating temperature range |
from -100°C to +185°C |
| Standards |
EN 13445, PED 2014/68/EU ASME Section VIII, Div. 1 |
| Connection options |
¾″ female pipe thread ¾″ male pipe thread 1″ pipe thread ISO 7-R NPT on request |
| Number of plates |
11, 15, 21, 31, 41, 51, 61, 71, 81, 91, 101 |
| Dimension L1 |
L1 = N × 2,3 + 8 mm |
| Main dimensions |
A: 329 mm (A = height) B: 93 mm (B = width) C: 279 mm (C = vertical centre-to-centre distance) D: 43 mm (D = horizontal centre-to-centre distance) E: 28 mm (E = connection length) |
| Accessories |
Insulation jackets Foundation feet |
The stated data represents the standard technical characteristics of SonFlow SFB18 and SonFlow SFB19.
The technical data is based on product information provided by SonFlow A/S. Last updated: November 2025. The manufacturer reserves the right to change the specifications without prior notice.
SFB18 and SFB19 are supplied to order. The selected model, configuration, price and current delivery time are confirmed in the quotation.
Other SonFlow SFB models
Frequently asked questions about SonFlow SFB10
Which models are included in the SFB10 heat exchanger series?
The SonFlow SFB10 series includes two individual models: SFB18 and SFB19. They have different overall dimensions, plate profiles, connection centre distances and formulas for calculating the plate pack depth.
What applications is SFB10 used for?
SFB18 and SFB19 are used in HVAC, heating, cooling, heat pump, refrigeration, solar thermal and industrial systems when the fluids and operating parameters are compatible with the technical characteristics of the heat exchanger.
Is heat duty alone sufficient for selecting an SFB10 heat exchanger?
No. Selecting the appropriate model and configuration also requires information about the fluids, flow rates, inlet and outlet temperatures, operating pressure and allowable pressure drop.
What are the design pressure and temperature range?
SFB18 and SFB19 have a design pressure of 25 bar and a temperature range from −100°C to +185°C. The allowable pressure–temperature combination must be verified for the specific configuration.
Can SFB10 replace another plate heat exchanger?
SFB10 may be used as a replacement when the operating parameters, overall dimensions, connection centre distances and connection types are compatible. A similar number of plates alone is not sufficient to confirm interchangeability.
Is SFB10 suitable for contaminated fluids?
SFB10 is not recommended for fluids containing solid particles or fibres, as well as fluids with high viscosity or an increased risk of blockage. A Free Flow, gasketed or other suitable type of heat exchanger should be considered for such applications.
How much does a SonFlow SFB10 heat exchanger cost?
The price of an SFB10 heat exchanger depends on the selected model, plate profile, number of plates, connection type and configuration requirements. The price is confirmed in the quotation.
Are any SFB10 configurations held in stock?
No. SFB18 and SFB19 are not held in stock and are supplied to order. The price and delivery time are confirmed in the quotation.
What information is required for a quotation?
Please provide the fluids, flow rates, inlet and outlet temperatures, heat duty, operating pressure, allowable pressure drop and required connections.
Request a Quote
Provide the main technical parameters of your application to receive a quotation for a SonFlow SFB18 or SFB19 brazed plate heat exchanger. After the data has been reviewed, you will receive a proposal specifying the suitable model and configuration, price and delivery time.
About SonFlow and KONTECH
KONTECH is an official distributor of SonFlow A/S.
SonFlow SFB10 is part of the product line of copper-brazed plate heat exchangers. The series includes the SFB18 and SFB19 models with AISI 316 stainless steel plates, copper brazing, a design pressure of 25 bar and ¾″ or 1″ threaded connections.
The models are intended for professional HVAC, heating, cooling, refrigeration, heat pump and industrial applications when the operating parameters and fluids are compatible with the technical characteristics of the unit.
KONTECH prepares quotations according to the supplied technical parameters. The selected model, configuration, price and delivery time are confirmed in the quotation.
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