rubber stopper with glass tubing
Precision Rubber Stopper with Glass Tubing for Laboratory and Industrial Applications
Engineered for reliability and precision, our high-quality rubber stopper with glass tubing assemblies are critical components for fluid and gas management systems. Designed to meet the rigorous demands of laboratories, educational institutions, pharmaceutical production, and chemical processing, these products ensure secure, leak-proof seals and safe fluid transfer. Each assembly is meticulously crafted to provide consistent performance, durability, and chemical resistance, making it an indispensable tool for professionals who cannot compromise on quality or safety in their processes.
Product Overview
Our rubber stopper with glass tubing product line represents a fusion of robust elastomer technology and precision glasswork. These assemblies are specifically designed to create secure, adaptable connections between glassware, tubing, and apparatus in a wide array of experimental and production setups. The core of the product is a high-grade, chemically resistant rubber stopper, bored to perfectly accommodate a smoothly fire-polished glass tube. This combination ensures a vacuum-tight seal that can withstand pressure differentials, temperature variations, and exposure to a broad spectrum of chemicals, providing a reliable interface for distillation, fermentation, gas collection, and countless other applications.
Key Features
- Superior Seal Integrity: Precision-molded rubber stoppers provide an excellent, leak-proof fit with standard taper glassware, minimizing evaporation and contamination.
- Chemically Resistant Materials: Stoppers are available in various compounds (e.g., Nitrile, EPDM, Silicone) to resist degradation from oils, acids, alkalis, and solvents.
- Safety-First Glass Tubing: All glass tubing is made from borosilicate glass (where applicable) for thermal shock resistance and is carefully fire-polished to remove sharp edges, ensuring user safety.
- Custom Configurations: We offer extensive customization in stopper size (single or multi-hole), bore diameter, glass tubing length, shape (straight, L-shape, U-shape), and inner/outer diameter.
- Durability & Reusability: High-quality materials ensure the assemblies can be autoclaved, sterilized, and reused multiple times without performance loss, offering excellent long-term value.
Technical Specifications
| Parameter | Specification / Options |
|---|---|
| Stopper Material | Natural Rubber, EPDM, Silicone, Nitrile (Buna-N), Neoprene |
| Stopper Size (Taper) | #00 to #13, or custom sizes per ISO/ASTM standards |
| Number of Holes | Single hole, 2-hole, 3-hole (custom configurations available) |
| Glass Tubing Material | Soda-Lime Glass, Borosilicate Glass 3.3 (for high thermal resistance) |
| Tubing Outer Diameter (OD) | Commonly 6mm, 8mm, 10mm; range from 4mm to 20mm available |
| Tubing Length & Shape | Standard lengths 150mm, 300mm; Custom lengths and shapes (L-shape, U-shape) upon request |
| Temperature Resistance | Varies by material: Silicone (-60°C to 230°C), EPDM (-50°C to 150°C), Natural Rubber (-50°C to 80°C) |
| Primary Compliance | Manufactured in ISO-certified facilities; materials meet relevant FDA, USP, and REACH standards for specific grades. |
Application Scenarios
The versatility of a well-constructed rubber stopper with glass tubing makes it essential across numerous sectors. In research and development laboratories, they are used in distillation setups, gas generation and collection apparatus (e.g., Kipp's apparatus), fermentation airlocks, and vacuum filtration systems. Educational institutions rely on them for safe and effective student demonstrations in chemistry and biology classes. Within industrial settings, such as pharmaceutical manufacturing, biotechnology, and chemical processing, these assemblies facilitate pilot-scale reactions, sample transfer lines, and venting systems. They are also crucial in quality control labs for various analytical procedures requiring sealed, contaminant-free environments.
Advantages
- Enhanced Process Safety: A secure seal prevents hazardous leaks of volatile or toxic substances, protecting personnel and the environment.
- Process Integrity: Eliminates contamination and unwanted evaporation, ensuring the accuracy and reproducibility of experiments and production batches.
- System Flexibility: Allows for easy setup and modification of apparatus, enabling creative and complex experimental designs.
- Cost-Effective Solution: The reusability and durability of high-quality assemblies reduce the need for frequent replacements, lowering long-term operational costs.
- Wide Compatibility: Designed to fit international standard taper (ST) glassware, ensuring easy integration into existing laboratory setups worldwide.
Why Choose Us
Selecting the right supplier for rubber stopper with glass tubing is critical for your operations. We distinguish ourselves through an unwavering commitment to precision manufacturing and customer-centric service. Our products are not generic; they are engineered based on decades of experience supplying the scientific and industrial communities. We maintain strict quality control at every stage, from raw material selection to final inspection, ensuring each unit meets exacting standards. Furthermore, our technical support team can assist you in selecting the optimal material and configuration for your specific chemical and physical application requirements. We pride ourselves on reliable logistics, competitive B2B pricing, and the ability to fulfill both standard catalog orders and fully customized solutions, making us a trusted global partner.
Frequently Asked Questions (FAQ)
Q1: How do I choose the right rubber compound for my application?
A: The choice depends on the chemicals and temperatures involved. For general aqueous and mild acidic/alkaline use, natural rubber is suitable. For oils, fuels, and solvents, Nitrile (Buna-N) is recommended. For high-temperature or autoclaving needs, Silicone or EPDM are excellent choices. Our sales team can provide detailed chemical compatibility charts.
Q2: Can you manufacture custom configurations not listed in your standard catalog?
A: Absolutely. Customization is our specialty. We can produce stoppers with multiple holes at specific angles, glass tubing with precise bends and dimensions, and assemblies using specialized glass or polymer tubing. Please contact us with your drawings or specifications for a quotation.
Q3: What is the lead time for standard and custom orders?
A: Standard catalog items are typically ready for shipment within 3-5 business days. Lead times for custom rubber stopper with glass tubing orders vary based on complexity and quantity but generally range from 2 to 4 weeks. We provide firm timelines upon order confirmation.
Q4: Are your products suitable for sterile or FDA-regulated applications?
A: Yes, we offer specific grades of stopper materials (e.g., USP Class VI certified silicone) and can supply assemblies that are clean-room packaged. It is the customer's responsibility to validate the final assembled and sterilized product for their specific regulated use.
Q5: What is the best way to insert the glass tubing into the stopper safely?
A: Always lubricate the glass tubing with water or glycerol. Hold the tubing close to the end entering the stopper and use a gentle twisting motion to insert it. Never push with excessive force. Always wear appropriate cut-resistant gloves and safety glasses during this procedure.
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