Customizing and repairing laboratory glassware requires standardized, high-quality components that ensure a perfect fit and vacuum-tight performance. LabFriend provides a specialized selection of ground joints and attachable components, located within the distillation and synthesis section of our distillation, separation, and filtration department. These professional-grade parts are essential for glassblowers and researchers constructing bespoke synthesis or distillation rigs.
Why Choose Professional Ground Joints & Attachable Components?
Our curated collection of glass components is engineered for precision fitment and high thermal stability:
- Precision Conical Ground Cones: We stock Lenz-Laborglas Conical Ground Cones in standardized sizes including NS 12/21, NS 14/23, and NS 19/26, manufactured to exacting tolerances for leak-proof connections.
- Versatile Screwthread Tubes: Utilize Lenz-Laborglas Screwthread Tubes for Glassblowers, available in GL sizes ranging from GL 14 to GL 45, allowing for the integration of threaded caps and connectors into glass apparatus.
- High-Grade Borosilicate: All Lenz-Laborglas components are crafted from premium borosilicate glass, ensuring they can be safely welded to existing laboratory glassware and withstand high thermal stress.
- Standardized Fitment: The "NS" (Normal-Schliff) ground joints ensure universal compatibility across various professional glassware brands, maintaining system integrity under vacuum or pressure.
LabFriend supplies ground joints from manufacturers renowned for glassware precision:
- Lenz-Laborglas: A global leader in laboratory glassware, providing an extensive range of precision-ground cones and screwthread tubes for professional glassblowing and assembly.
Standardized joints are the foundation of any modular laboratory setup; to further enhance your synthesis and distillation workflow, we recommend exploring these related categories:
- NS Joint Neck Flasks: Pair your attachable joints with ISOLAB Erlenmeyer or Lenz pear-shape flasks for complete reaction assemblies.
- Reaction & Distillation Components: Integrate your custom glassware with ISOLAB adapters and Lenz-Laborglas delivery tubes.
- Gas Wash Bottles: Use standardized NS 29/32 joints to connect Lenz-Laborglas Drechsel bottles to your gas purification streams.
- Dropping Funnels: Ensure secure, drop-wise reagent addition by using funnels with compatible NS ground glass joints.
Unsure if a GL 18 or GL 45 screwthread tube is required for your specific custom glass project? Our team provides local technical support to help you find the perfect joint solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. What does the "NS" in NS 14/23 signify?
NS stands for "Normal-Schliff" (standard ground joint). The numbers represent the diameter (14 mm) and the length (23 mm) of the ground surface, ensuring a perfect fit with any other NS 14/23 component.
2. Can Lenz-Laborglas attachable components be welded to any glass?
These components are made from borosilicate glass and are designed to be welded by professional glassblowers to other laboratory-grade borosilicate glassware to maintain thermal resistance.
3. What is the difference between GL and NS fittings?
NS fittings are ground glass joints that rely on a friction fit (often with grease or clips), while GL fittings are threaded tubes designed to accept plastic or glass screw caps.
4. Why are screwthread tubes useful for glassblowers?
Screwthread tubes, such as the Lenz GL 14 or GL 32, allow glassblowers to add threaded ports to custom apparatus, enabling the easy attachment of sensors, thermometers, or tubing via GL caps.
