1. Plasticware Lab Supplies For Sale
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  3. CHEMGLASS CLS-1380-23

CHEMGLASS CLS-1380-23 Blind Stopper Thread M10

Cls-1380-23 Chemglass Blind Stopper M10 Thread - New

( Brand: Chemglass ), ( Manufacturer Part Number: CLS-1380-23 ), ( Part Type: Stopper )

Review CHEMGLASS Blind Stopper M10 Thread New

The **Chemglass CGS-1380-23 Blind Stopper with M10 Thread** is a high-performance, precision-engineered accessory designed for laboratory applications requiring secure, leak-proof sealing of glassware, particularly in conjunction with conical ground joints and threaded connections. Crafted from durable, borosilicate glass (Type 1, Class A), this stopper is engineered to withstand the rigors of chemical resistance, thermal stability, and repeated sterilization, making it an indispensable component in analytical chemistry, pharmaceutical research, and industrial synthesis. The **M10 thread** a standardized metric connection ensures a tight, reliable seal when paired with compatible glassware, such as reaction flasks, distillation apparatuses, or chromatography columns, while the **blind design** (without an outlet) allows for complete containment of volatile or hazardous substances. Its smooth, polished surface minimizes dead-space and reduces the risk of contamination or residue buildup, which is critical for applications demanding sterility or high-purity conditions. The stopper s **conical ground joint compatibility** (typically 23/40 or 24/40, depending on the specific application) ensures a friction-free, airtight fit, reducing the likelihood of leaks under pressure or during temperature fluctuations. Ideal for use in **rotary evaporation, reflux setups, or solvent extraction**, this stopper is also compatible with vacuum systems, provided the glassware is reinforced to handle the differential pressure. Constructed to meet stringent industry standards, including compliance with **USP Class VI and ASTM D1292**, the CGS-1380-23 is free from extractable contaminants, ensuring compatibility with pharmaceutical-grade solvents and sensitive biological samples. Whether used in academic research, quality control testing, or large-scale production, this stopper delivers uncompromising performance, durability, and versatility, making it a cornerstone of modern laboratory infrastructure.

### **Pros and Cons of buying a Chemglass CLS-1380-23 Blind Stopper (M10 Thread)**

#### **Pros:**

1. **High-Quality Material** Chemglass products are known for their durable borosilicate glass (Type 1), which is chemically resistant, heat-resistant, and suitable for laboratory use. This stopper is designed to withstand harsh solvents, acids, and bases without degradation.

2. **Precision Engineering** The M10 thread is standardized and compatible with many laboratory glassware systems, ensuring a secure and leak-free fit. The blind stopper is designed to seal flasks, bottles, or other glassware effectively when used with appropriate gaskets or lubricants.

3. **Versatility** The CLS-1380-23 is a blind stopper, meaning it lacks a central opening, making it ideal for applications where a complete seal is required (e.g., storing reagents, preventing contamination, or reducing evaporation). It can be used in conjunction with other Chemglass components like adapters or valves for more complex setups.

4. **Compatibility with Lab Standards** Chemglass follows industry standards for glassware, ensuring compatibility with common laboratory equipment, such as condensers, funnels, and connectors. This reduces the need for custom modifications.

5. **Easy to Clean and Sterilize** Borosilicate glass is inert and can be cleaned with solvents, steam, or autoclaving, making it suitable for sterile applications in pharmaceutical, biotech, or analytical labs.

6. **Long Lifespan** Properly maintained, Chemglass stoppers can last for years, reducing the need for frequent replacements and minimizing waste.

7. **Support and Warranty** Chemglass offers customer support and warranties, which can be helpful if issues arise with the product or installation.

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#### **Cons:**

1. **Limited Functionality Without Accessories** Since it is a blind stopper, it cannot be used for processes requiring fluid transfer or sampling without additional components (e.g., a septum or adapter). You may need to purchase extra parts (e.g., a Chemglass CLS-1380-23 with a central port or a separate valve system).

2. **Potential for Leaks** If not properly lubricated or if the thread is damaged, the stopper may not seal tightly, leading to leaks or contamination. This requires careful handling and the use of compatible lubricants (e.g., silicone grease).

3. **Fragility** While borosilicate glass is durable, it is still brittle. Dropping or mishandling the stopper could cause cracks or breakage, especially if it is thin or has sharp edges.

4. **Cost** Chemglass products are generally more expensive than plastic or lower-grade glass alternatives. For labs with tight budgets, this may be a significant consideration, though the long-term durability often justifies the cost.

5. **Maintenance Requirements** The stopper and its mating parts (e.g., flasks or connectors) must be cleaned regularly to prevent residue buildup, which can affect sealing performance over time.

6. **Limited Customization** Unlike some plastic stoppers, Chemglass stoppers are not easily modified or repurposed for non-standard applications. If your setup requires non-standard dimensions or features, you may need to source a different product.

7. **Thread Compatibility Issues** While M10 is common, ensuring compatibility with your specific glassware (e.g., joint size, taper) is critical. Mismatched threads can lead to leaks or damage.

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### **Ending Conclusion:**

The **Chemglass CLS-1380-23 Blind Stopper (M10 thread)** is a high-quality, reliable component for laboratories requiring a secure, chemically resistant seal in glassware. Its borosilicate glass construction, precision threading, and compatibility with standard lab systems make it a strong choice for applications where contamination control, durability, and sterility are priorities. However, its limitations such as the lack of a central opening, potential fragility, and higher cost may not make it suitable for every use case. If your application demands a complete seal without fluid access, this stopper is an excellent investment. For applications requiring fluid transfer or sampling, pairing it with additional accessories (e.g., a septum or adapter) would be necessary.

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### **Recommendation:** **Buy the Chemglass CLS-1380-23 Blind Stopper if:**

- You need a durable, chemically resistant seal for glassware in a laboratory setting.

- Your application does not require fluid transfer or sampling through the stopper.

- You are working with reagents, solvents, or conditions that demand high-quality borosilicate glass.

- You have compatible glassware with M10 threading and plan to use it with proper lubrication and maintenance.

**Consider alternatives if:**

- You need a stopper with a central opening for sampling or venting (e.g., a Chemglass CLS-1380-23 with a port or a different style like a screw cap).

- Your budget is constrained, and you can use a lower-cost plastic or metal stopper (though these may lack chemical resistance).

- You frequently handle fragile glassware and are concerned about breakage risks.

For most analytical, pharmaceutical, or biotech labs requiring a reliable seal, the **Chemglass CLS-1380-23 is a recommended choice** due to its quality and performance. Always verify compatibility with your existing equipment and follow proper handling procedures to maximize its lifespan.

Details:

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part #: cls138023 price

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  • brand: Chemglass
  • mpn: Cls-1380-23
  • part type: Stopper

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  • Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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part type: stopper,
category: business & industrial > medical, lab dental supplies > glassware plasticware > medical lab glassware, sku: 14052255071363741,
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