BELLCO 1965-20003R Glass Steel Cap Spinner Flask 2-PORT GL45 3L

( Brand: Bellco ), ( Manufacturer Part Number: 1965-20003R ), ( Part Type: Cap Spinner ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory )

Review BELLCO Glass 2-port Stainless Steel Cap Assembly 3l Spinner Flask

The **Bellco 1965-20003R Glass 2-Port Steel Cap Spinner Flask** is a precision-engineered laboratory vessel designed for high-performance liquid-liquid extractions, solvent evaporations, and other demanding chemical processes where efficiency and durability are paramount. Crafted from borosilicate glass (GL45), this flask combines exceptional thermal and chemical resistance with optical clarity, ensuring reliable performance across a wide range of temperatures and corrosive environments. The robust **steel cap** with a **sealed gasket** provides an airtight, leak-proof closure, minimizing contamination risks while maintaining pressure stability during agitation. Featuring **two precision-machined ports**, the flask accommodates dual inlet/outlet connections for simultaneous addition of solvents, gases, or vacuum lines, streamlining multi-step procedures without the need for disassembly. The **3-liter capacity** offers ample volume for medium-scale operations, balancing practicality with ease of handling, while the **spinner assembly** comprising a durable stainless steel shaft and impeller facilitates uniform mixing and phase separation, reducing settling time and improving extraction yields. Ideal for applications in pharmaceutical synthesis, analytical chemistry, and industrial R&D, this flask s seamless integration of glass and metal components ensures longevity and compatibility with autoclaves, fume hoods, and other standard lab equipment. Whether used for batch processing or continuous-flow systems, its robust construction and ergonomic design make it a versatile workhorse for laboratories demanding both precision and reliability.

### **Pros and Cons of buying a Bellco 1965-20003R Glass 2-Port Steel Cap Spinner Flask (GL45, 3L)**

1. **Durability and Quality Construction**

The Bellco spinner flask is made from borosilicate glass (likely Type 3.3 or similar), which is highly resistant to thermal shock, chemical corrosion, and mechanical stress. This makes it suitable for long-term use in laboratory settings, including applications involving heating, cooling, or agitation.

2. **Compatibility with Standard Laboratory Equipment**

The 2-port steel cap design allows for easy attachment to vacuum lines, gas inlets, or mechanical stirrers. The GL45 (3L) size is a common volume for batch processes, making it versatile for synthesis, extraction, or distillation work.

3. **Sealing and Safety Features**

The steel cap provides a secure seal, reducing the risk of spills or contamination. This is particularly useful when working with volatile or hazardous chemicals. The cap also allows for pressure or vacuum applications, depending on the setup.

4. **Compatibility with Magnetic Stirrers**

The flask s design typically accommodates a magnetic stir bar, enabling efficient mixing without mechanical agitation, which reduces wear and tear on components.

5. **Reusable and Cost-Effective for Large-Scale Work**

Unlike disposable plasticware, this flask can be reused many times, making it a cost-effective option for laboratories performing repeated batch processes. The steel cap also reduces the need for additional sealing components.

6. **Compatibility with Common Glassware Adaptors**

The ports can be fitted with standard glass joints (e.g., 24/40 or 29/32) or adapters for connecting to condensers, funnels, or other glassware, increasing its flexibility in setups.

7. **Brand Reputation**

Bellco is a well-established manufacturer of laboratory glassware, known for producing reliable, high-quality equipment. Their products are often preferred in academic and industrial labs for their longevity and performance.

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1. **Fragility Despite Glass Strength**

While borosilicate glass is durable, it is still brittle. Dropping the flask or subjecting it to sudden impacts can cause cracks or shattering. This requires careful handling, especially in busy lab environments.

2. **Weight and Portability Issues**

A 3L glass flask is heavy, particularly when filled with liquids or solids. Moving it between workstations or storage can be cumbersome, and the steel cap adds to the overall weight.

3. **Maintenance and Cleaning Challenges**

Glassware can accumulate residues from reactions, especially if organic solvents or sticky substances are used. Thorough cleaning may require soaking in strong detergents or solvents, and some stubborn residues might require mechanical scrubbing, which can scratch the glass over time.

4. **Limited Temperature Range for Steel Cap**

While the steel cap is durable, extreme temperature fluctuations (e.g., rapid heating or cooling) could potentially warp or damage the metal, compromising the seal. This is less of an issue if the flask is used under controlled conditions.

5. **Cost Compared to Plastic Alternatives**

While the flask is cost-effective for long-term use, the initial purchase price may be higher than disposable plastic equivalents. However, for frequent or large-scale use, the investment pays off over time.

6. **Potential for Leaks or Seal Failure**

Over time, the rubber gaskets or seals in the steel cap may degrade, especially if exposed to organic solvents or extreme temperatures. Regular inspection and replacement of seals may be necessary to maintain a proper vacuum or pressure seal.

7. **Space Requirements**

A 3L flask occupies significant bench or storage space, which may be a limitation in labs with limited workspace.

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The **Bellco 1965-20003R 3L glass spinner flask with a steel cap** is an excellent choice for laboratories requiring durable, reusable, and versatile glassware for batch processes, distillation, or extraction. Its borosilicate construction ensures chemical resistance and thermal stability, while the steel cap provides a secure seal for vacuum or gas applications. The flask s compatibility with standard laboratory equipment and magnetic stirrers further enhances its utility.

However, its weight, fragility, and maintenance requirements necessitate careful handling and regular upkeep. If the flask is used in an environment where rough handling or extreme conditions are common, additional precautions (e.g., protective sleeves, careful storage) may be needed.

- You need a **long-term, high-quality solution** for large-scale laboratory processes (e.g., synthesis, distillation, or extraction).

- Your workflow involves **repeated use** of glassware, making disposables impractical.

- You require **sealed systems** for vacuum or gas applications.

- You prioritize **durability and chemical resistance** over convenience.

- You frequently work in **highly dynamic or hazardous environments** where the risk of breakage is high (e.g., open-flame heating without proper containment).

- Your lab has **limited space or budget constraints** for heavy, specialized glassware.

- You prefer **easier-to-clean or disposable options** (e.g., plastic flasks or carboys) for simpler applications.

- You need **portability** for fieldwork or mobile labs, where weight is a significant concern.

**Final Verdict:** For most academic, industrial, or pharmaceutical labs performing routine batch operations, this Bellco flask is a **strong, reliable investment** that justifies its cost through longevity and performance. Pair it with proper handling procedures and storage to maximize its lifespan.

Details:

Part Number: 1965-20003R. NOTE: Only what is pictured. Cap Size: GL45 thread size with an open-top blue polypropylene cap handles autoclave temperatures up to 140C max. Material: 316L electroplated stainless steel dual tubes one 5-inch immersion dip tube and one short vent.

Included Components: 2-port stainless steel tube assembly, blue GL45 open-top screw cap, and white silicone sealing gasket.

part #: 1965-20003r prices

• $50.00-$209.99

specifications plasticwarelabsuppy:

• brand: Bellco
• mpn: 1965-20003r
• part type: Cap Spinner
• unit type: Unit
• country of origin: United States
• intended use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory

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• cost: $11.95

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• # reviews: 778
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• condition: New
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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