SONDEX SL70TK-CC-18 Brazed Plate Heat Exchanger 19.5

( Brand: Sondex ), ( Manufacturer Part Number: SL70TK-CC-18 ), ( Type: Plate Heat Exchanger ), ( Material: 316 Stainless Steel ), ( Country Of Origin: United States )

Review SONDEX Brazed Plate Heat Exchanger Plates Stainless 19.5 Inch

The **Sondex SL70TK-CC-18 Brazed Plate Heat Exchanger (18 plates, 19.5 kW)** is a high-performance, compact thermal solution engineered for precision fluid temperature control in industrial, commercial, and HVAC applications. Part of Sondex s renowned **SL Series**, this brazed plate heat exchanger combines superior heat transfer efficiency with robust durability, making it ideal for systems requiring reliable and space-saving thermal management. Featuring **18 high-quality stainless steel plates** with a **corrugated pattern**, the design maximizes turbulence and surface area, ensuring optimal heat exchange while minimizing pressure drop. The **19.5 kW nominal capacity** provides ample thermal output for applications such as chilled water systems, glycol-based refrigeration loops, solar thermal preheating, or process fluid temperature regulation, where consistent and efficient heat transfer is critical.

Constructed from **high-grade stainless steel (typically 316L or 1.4404)**, the heat exchanger is resistant to corrosion, scaling, and chemical degradation, making it suitable for both clean and mildly contaminated fluids. The **brazed plate design** eliminates the need for gaskets, enhancing long-term reliability, reducing maintenance, and allowing for higher operating pressures (up to **16 bar**) and temperatures (up to **120 C**). The compact footprint of the **SL70TK-CC** series with a **70 mm plate spacing** balances efficiency with practical installation constraints, fitting seamlessly into tight spaces while delivering performance comparable to larger, traditional shell-and-tube exchangers. The **CC (Compact Corrugation)** pattern further optimizes flow dynamics, reducing fouling and extending operational lifespan.

This heat exchanger is equipped with **standardized 1 " (DN40) port connections**, ensuring compatibility with common piping systems, while its **modular design** allows for easy integration into existing HVAC, refrigeration, or industrial fluid circuits. The **tight plate spacing** not only conserves space but also enhances thermal efficiency, making it particularly well-suited for applications where energy savings and compactness are priorities. Whether used in **commercial refrigeration, solar thermal systems, or industrial process cooling**, the **SL70TK-CC-18** delivers consistent performance with minimal energy loss, contributing to both operational cost savings and sustainability goals. Its **low maintenance requirements** and **long service life** further reinforce its value as a premium choice for engineers and facility managers seeking a durable, high-performance heat transfer solution.

### **Pros and Cons of buying a Sondex SL70TK-CC-18 Brazed Plate Heat Exchanger (18 Plates, 19.5 kW)**

1. **High Efficiency** Brazed plate heat exchangers (BPHEs) are known for their compact design and high heat transfer efficiency, making them ideal for applications requiring precise temperature control.

2. **Space-Saving Design** Compared to shell-and-tube exchangers, this unit occupies less space, which is beneficial for installations with limited room.

3. **Corrosion Resistance** The material (likely stainless steel, as suggested by the "CC" designation) provides good resistance to corrosion, extending the unit s lifespan in moderate to aggressive environments.

4. **Modularity & Scalability** The 18-plate configuration allows for flexibility; additional plates can be added if capacity needs increase in the future.

5. **Low Maintenance** Brazed plate heat exchangers typically require less maintenance than welded or gasketed types, as there are no moving parts or seals to replace.

6. **Energy Efficiency** The compact design reduces thermal losses, improving overall energy efficiency in heating or cooling applications.

7. **Versatility** Suitable for a range of applications, including HVAC, industrial processes, refrigeration, and solar thermal systems.

8. **Quick Installation** The compact and modular nature of BPHEs allows for faster installation compared to traditional heat exchangers.

1. **Limited Pressure & Temperature Ratings** Brazed plate heat exchangers generally have lower pressure and temperature limits compared to shell-and-tube exchangers. The SL70TK-CC-18 may not be suitable for high-pressure or extreme-temperature applications.

2. **Fouling Susceptibility** While less prone to fouling than some other designs, improper fluid treatment can still lead to performance degradation over time.

3. **Cost Considerations** Although initially more compact, the upfront cost of a high-quality BPHE like this Sondex unit may be higher than that of a basic shell-and-tube exchanger, depending on the application.

4. **Leak Risk** Brazed joints, while strong, can fail under extreme conditions, potentially leading to leaks if not properly maintained.

5. **Limited Flow Rate Handling** The 19.5 kW rating suggests it may not be ideal for very high-flow applications without proper sizing.

6. **Specialized Maintenance Requirements** Unlike simpler systems, BPHEs may require specialized cleaning or repair procedures, which could add to operational costs.

The **Sondex SL70TK-CC-18 brazed plate heat exchanger** is an excellent choice for applications requiring **high efficiency, compactness, and moderate pressure/temperature handling**. It is well-suited for **HVAC systems, industrial process heating/cooling, or solar thermal applications** where space and performance are critical. However, if the application involves **extreme pressures, high temperatures, or very high flow rates**, a different type of heat exchanger (such as a shell-and-tube design) may be more appropriate.

- **Buy if:** You need a **high-efficiency, space-saving solution** for moderate-pressure applications (e.g., residential/commercial HVAC, solar thermal, or light industrial processes) and can justify the initial cost for long-term energy savings.

- **Consider alternatives if:** Your system requires **high pressure, extreme temperatures, or very large flow rates**, in which case a shell-and-tube exchanger or a larger BPHE model may be more suitable.

- **Verify compatibility** with your specific fluid types, pressure, and temperature requirements before purchasing to ensure optimal performance and longevity.

For best results, consult with a **thermal systems engineer or Sondex representative** to confirm the unit s suitability for your exact application.

Details:

Type: Brazed Plate Heat Exchanger BPHE. Condition: Used. Number of Plates: 18. Model: SL70TK-CC-18.

Material: 316 Stainless Steel Plates, Copper Brazing. Number of Plates It is a compact, high-efficiency model ideal for HVAC, district heating, or industrial cooling applications. NOTE: Only what is pictured. Specializing in IT Asset Management and Disposition Details Sondex SL70TK-CC-18 Brazed Plate Heat Exchanger - 18 Plates Stainless 19.5, Brand: Deafness.

part #: sl70tkcc18 price

• $289.00

specifications indheatexchanger:

• brand: Sondex
• mpn: Sl70tk-cc-18
• type: Plate Heat Exchanger
• material: 316 Stainless Steel
• country of origin: United States

shipping indheatexchanger:

• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy, UPS Ground
• transit: 4-10 Days
• type: Calculated
• cost: $57.65
• carrier: USPS, UPS, FedEx
• class: Standard, Economy

general indheatexchanger:

• condition: Used
• HVAC Refrigeration > HVAC Refrigeration Components > Heat Exchangers

seller indheatexchanger:

• rating: 100.0%
• city: Milton, New Hampshire
• # reviews: 729

offer indheatexchanger:

• best offers: True
• availability: In Stock
• sold: 0
• started: May 12, 2026
• options: Ship-to-home
• quantity: 1

payments indheatexchanger:

• wallet: Paypal
• other
• credit card: Mastercard

returns indheatexchanger:

• policy: No Returns

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