BÜCHI Borosilicate 3.3 Glass Column Assembly with Stainless Steel Flanges – Code No. 19678

The BÜCHI Borosilicate 3.3 Glass Column Assembly is a laboratory and process equipment component designed for integration into compatible scientific, chemical processing, and research systems. The unit features a transparent cylindrical glass body, metal flange connections, and end fittings that allow it to be incorporated into a suitable equipment assembly. The visible BÜCHI branding and the marking “Borosilikat 3.3” indicate the manufacturer's identification and glass material designation. The visible code appears to be 19678.

Borosilicate glass 3.3 is widely used in laboratory equipment because of its chemical resistance, transparency, and relatively low thermal expansion compared with ordinary glass. These characteristics make it useful in many laboratory and industrial applications where visual monitoring of a process and compatibility with chemicals are important. However, the suitability of this particular assembly depends on its original design, operating conditions, seals, and connection specifications.

The transparent cylindrical section allows the contents or process conditions inside the glass body to be observed when the assembly is used in an appropriate system. This visibility can support process monitoring, inspection, and troubleshooting. The cylindrical geometry also provides a defined internal passage or chamber, depending on the intended configuration of the equipment.

The assembly incorporates metal flange rings at both ends. These flanges appear to secure the glass section and provide interfaces for connection to compatible components. The visible fasteners and end fittings suggest a modular construction. Before installation, users should verify flange dimensions, gasket material, connection geometry, and compatibility with the equipment to which the assembly will be attached.

BÜCHI is a manufacturer associated with laboratory and chemical processing equipment. Components of this type may be encountered in specialized laboratory systems, pilot-scale installations, or chemical process assemblies. Nevertheless, the photograph alone does not establish whether this particular component is a process column, condenser-related component, extraction assembly, or another type of glass equipment. Its precise application should be confirmed using the original equipment documentation or manufacturer identification.

This BÜCHI glass assembly may be of interest to pharmaceutical laboratories, chemical research facilities, universities, industrial research departments, and scientific equipment resellers looking for compatible original equipment components. For laboratories maintaining existing BÜCHI installations, an identified replacement component can help support equipment maintenance and system restoration, provided its specifications match the original assembly.

The glass body should be inspected for cracks, chips, scratches, cloudiness, and other signs of deterioration before use. The metal flanges, connecting fittings, fasteners, and sealing surfaces should also be examined. If the component is intended for vacuum service, pressurized operation, elevated temperatures, or hazardous chemicals, its operating limits must be established before installation.

The product is best listed as a BÜCHI borosilicate glass assembly with stainless-steel flange connections, using the visible code number for identification. This approach accurately describes the pictured item without assigning an unverified model name or unsupported performance specifications.

2.2. Applications of the Product

Potential applications, subject to confirmation of the exact component type, include:

• Laboratory process systems: Integration into compatible laboratory glass assemblies.

• Chemical research: Use as a component in appropriate chemical processing or experimental setups.

• Pharmaceutical R&D: Potential use in specialized process equipment where the original system requires this assembly.

• Pilot-scale processing: Installation in compatible pilot-scale glass equipment.

• Equipment maintenance: Replacement of a matching component in an existing BÜCHI installation.

• Scientific institutions: Use in research laboratories, technical institutes, and university facilities.

• Industrial process development: Potential integration into suitable process development systems.

These are potential use categories, not verified applications for this specific part.

2.3. Key Features

• Original BÜCHI-branded laboratory component, as visible in the photograph.

• Cylindrical transparent glass body.

• Glass material marking: Borosilikat 3.3.

• Metal flange assemblies at both ends.

• Visible connecting fittings and fastening hardware.

• Design suitable for integration into a compatible equipment assembly.

• Transparent construction for visual inspection of the internal section.

• Identification marking that appears to read code number 19678.

• Suitable for consideration by laboratory maintenance teams and scientific equipment resellers.

• Exact application and operating limits to be confirmed before use.

2.4. Technical Specifications

2.5. Product Condition

Suggested listing condition: Used / Pre-owned — inspection required.

The photograph shows a pre-owned-looking laboratory component. Its operational status, seal integrity, and suitability for reuse have not been established. Confirm the actual condition before publishing the listing as refurbished or fully functional.