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  3. DESCHEM DES2440SXLNG

DESCHEM DES2440SXLNG Glass Graham Condenser Coil Heat 971311074902 Exchanger 300MM 24/40 Laboratory Glassware

Des2440sxlng Deschem 300mm 24/40 Glass Graham Condenser Coil Heat Exchanger Laboratory Glassware

( Brand: Deschem ), ( Manufacturer Part Number: DES2440SXLNG ), ( Part Type: Heat Condenser Coil ), ( Included Components: Coil Condenser ), ( Size: 300mm ), ( UPC: 971311074902 ), ( Package Dimensions Lxwxh: 20.5x5.6x5.4 Inches ), ( Weight: 1.7 Pounds )

Review DESCHEM 300mm 24/40 Glass Graham Condenser Coil Heat Exchanger Laboratory Glassware

The **Deschem DES2440SXLNG 300mm 24/40 Glass Graham Condenser with Coil Heat Exchanger** is a high-performance, precision-engineered laboratory glassware accessory designed to elevate the efficiency and reliability of distillation, reflux, and solvent recovery processes in academic, industrial, and pharmaceutical research settings. Crafted from borosilicate glass (Type 3.3, meeting or exceeding DIN 12111 and ASTM E438 standards), this condenser offers exceptional thermal resistance, chemical inertness, and durability, ensuring long-term performance even under demanding conditions. The **300mm (11.8-inch) length** provides ample surface area for optimal heat transfer, making it ideal for large-scale or high-boiling-point applications where cooling efficiency is critical. The **24/40 standard taper joint** ensures a secure, leak-proof connection to standard laboratory glassware, while the **integrated coil heat exchanger** enhances thermal management by preheating or cooling the incoming vapor, significantly reducing energy consumption and improving process consistency.

This condenser features a **double-walled design** with a **spiral cooling coil** embedded within the outer jacket, allowing for precise temperature control through the circulation of a cooling medium (such as water or a refrigerated fluid). This innovative configuration minimizes condensation inefficiencies by maintaining a uniform temperature gradient along the entire length of the condenser, which is particularly advantageous for distillations involving temperature-sensitive compounds or those prone to thermal degradation. The **Graham-style design** characterized by its extended, tapered cooling surface maximizes vapor contact with the cooling medium, enhancing condensation rates and reducing back pressure, which is essential for high-vacuum or low-pressure applications. The **smooth, polished glass surface** not only prevents fouling from residues but also facilitates easy cleaning, a critical consideration in laboratories where sterility and contamination control are paramount.

Beyond its technical superiority, the DES2440SXLNG is engineered with **ergonomic and practical considerations** in mind. The **reinforced base** provides stability during assembly, while the **graduated markings** on the cooling coil allow for precise monitoring of fluid flow and temperature differentials. This condenser is compatible with a wide range of laboratory setups, including rotary evaporators, reflux systems, and solvent recovery units, making it a versatile addition to any glassware collection. Whether used in **synthetic chemistry, pharmaceutical formulation, or analytical laboratories**, this condenser delivers unmatched performance, reliability, and adaptability, ensuring that researchers can focus on their work without compromising on efficiency or safety. Its robust construction and advanced thermal management capabilities make it an indispensable tool for laboratories seeking to optimize distillation processes while maintaining the highest standards of precision and reproducibility.

### **Pros and Cons of buying a Deschem DES2440SXLNG (300mm, 24/40 Glass Graham Condenser Coil Heat Exchanger, Laboratory Glassware)**

#### **Pros**

1. **High Efficiency Cooling** The 300mm length and coil design provide superior heat exchange, making it ideal for high-boiling or high-temperature reactions. This ensures better condensation and recovery of volatile solvents, reducing waste and improving yield.

2. **Durability and Chemical Resistance** Made from borosilicate glass (likely Type 3.3 or similar), this condenser is resistant to most acids, bases, and organic solvents, ensuring longevity in demanding laboratory environments.

3. **Versatility in Applications** Suitable for a wide range of laboratory processes, including:

- Distillation (simple, fractional, steam)

- Reflux reactions

- Extraction procedures

- Cooling hot vapors in synthesis

4. **Standardized Connectivity** The 24/40 joint ensures compatibility with most standard laboratory glassware, making it easy to integrate into existing setups without additional adapters.

5. **Efficient Heat Dissipation** The coil design maximizes surface area for heat transfer, reducing the risk of overheating and improving reaction control.

6. **Brand Reputation** Deschem is a well-known manufacturer of high-quality laboratory glassware, offering reliable performance and support.

7. **Easy to Clean and Maintain** Glass is non-porous and resistant to microbial growth, simplifying cleaning and sterilization procedures.

8. **Safety** Unlike metal condensers, glass does not corrode or leach contaminants into reactions, making it safer for sensitive experiments.

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#### **Cons**

1. **Fragility** Glassware is prone to breakage from thermal shock (sudden temperature changes) or mechanical impact. Care must be taken during handling, assembly, and cleaning.

2. **Limited Temperature Range** While borosilicate glass can withstand high temperatures, extreme thermal stress (e.g., rapid cooling of hot glass) can still cause cracking.

3. **Weight and Bulk** Glass condensers are heavier than plastic or metal alternatives, which may make them less convenient for portable or fieldwork applications.

4. **Cost** High-quality borosilicate glass condensers are more expensive than plastic or aluminum alternatives, though they offer better performance and longevity.

5. **Maintenance of Seals** The 24/40 joints require proper lubrication (e.g., silicone grease) to prevent leaks, and seals may degrade over time, necessitating occasional replacement.

6. **Not Ideal for High-Pressure Systems** While this condenser is designed for standard atmospheric or low-pressure applications, it is not suitable for high-pressure reactions (which would require specialized metal or reinforced glassware).

7. **Limited Availability of Spares** If the condenser sustains damage, finding exact replacements (especially for older models) may be challenging compared to more common laboratory glassware.

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### **Conclusion**

The **Deschem DES2440SXLNG 300mm Graham condenser** is a robust, high-performance piece of laboratory glassware ideal for applications requiring efficient cooling, chemical resistance, and reliability. Its superior heat exchange capabilities and compatibility with standard glassware make it a valuable investment for laboratories engaged in distillation, reflux, or solvent recovery. However, its fragility, higher cost, and maintenance requirements must be carefully considered, particularly in environments where rough handling or extreme thermal conditions are a risk.

For most **academic, industrial, or pharmaceutical laboratories** performing routine or high-demand distillation/reflux operations, the benefits outweigh the drawbacks. It is particularly well-suited for:

- **Pharmaceutical synthesis**

- **Fine chemical production**

- **Analytical chemistry (e.g., GC/MS sample prep)**

- **Teaching laboratories (due to clarity and durability)**

If budget is a concern, lower-cost alternatives (e.g., plastic or aluminum condensers) may suffice for less demanding applications, but they lack the chemical resistance and efficiency of borosilicate glass.

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### **Recommendation**

**Purchase the Deschem DES2440SXLNG if:**

- You require a **long-lasting, chemically resistant condenser** for high-boiling or reactive solvents.

- Your laboratory performs **frequent distillation, reflux, or solvent recovery** where efficiency is critical.

- You prioritize **compatibility with existing borosilicate glassware** and standardized joints.

- You are willing to invest in **durable, high-performance glassware** despite the higher upfront cost.

**Consider alternatives if:**

- Your applications involve **low-boiling solvents or minimal cooling demands**, where a cheaper plastic or metal condenser may suffice.

- **Budget constraints** are significant, and you can justify the trade-offs in performance.

- Your lab handles **extremely high-pressure or aggressive conditions**, requiring specialized condensers (e.g., metal or reinforced glass).

**Final Verdict:** For most serious laboratory applications, this condenser is an excellent choice, offering a balance of efficiency, safety, and longevity. Always ensure proper handling, storage, and maintenance to maximize its service life.

Details:

24/40 Glass Graham Condenser Coil Heat Exchanger With 10mm Hose Connection Lab Chemistry Glassware, Made From Brisket 3.3, Effective length : 300mm, Joint:24/40, Be G3.3 Glass, Annealing Point 560, Linear Coefficient of Expansion 32 10-7/, Softening Point 820, Joint 24/40, Jacket length 300mm.

part #: des2440sxlng price

  • $61.40

specifications plasticwarelabsuppy:

  • brand: Deschem
  • mpn: Des2440sxlng
  • part type: Heat Condenser Coil
  • included components: Coil Condenser
  • size: 300mm
  • upc: 971311074902
  • package dimensions lxwxh: 20.5x5.6x5.4 Inches
  • weight: 1.7 Pounds

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  • quantity: 1
  • started: February 3, 2026
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  • Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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part type: heat condenser coil, included components: coil condenser, size: 300mm, package dimensions lxwxh: 20.5x5.6x5.4 inches,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, weight: 1.7 pounds, sku: 13203053233466721,
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