Graham Reflux Condenser BORO 3.3 Borosilicate Glass
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Graham reflux condensers supplied by LabChoice Australia provide highly efficient vapor cooling and solvent condensation for prolonged reflux, distillation and purification workflows across analytical, industrial and educational laboratories. Manufactured from premium BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these condensers offer exceptional thermal stability, chemical resistance and long term mechanical durability. Their signature tightly wound internal coil creates extensive surface area, supporting rapid heat transfer and highly effective condensation even under heavy vapor loads.
Each Graham condenser is fitted with precision ground glass joints manufactured in accordance with ISO 383 and ASTM E676 specifications, ensuring secure, leak tight compatibility with flasks, stillheads, Soxhlet extractors, reaction vessels and modular distillation assemblies. The inner coil promotes smooth vapor movement and optimised cooling while the outer water jacket provides uniform temperature regulation when connected to recirculating chillers or tap water supply. The high clarity BORO 3.3 glass construction allows clear observation of reflux action, condensation behaviour and solvent return during continuous operation.
Graham reflux condensers are widely used in organic synthesis, essential oil work, solvent purification, long duration reflux reactions, high boiling point solvent distillation, petrochemical analysis, pharmaceutical development and environmental research laboratories. Their enhanced cooling capacity makes them particularly suitable for reactions requiring strong, consistent reflux and precise thermal control. The coil design minimises flooding risk and supports efficient condensation across extended runtime processes.
All Graham condensers supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional verification, coil geometry integrity checks, water jacket pressure testing, joint taper conformity assessment, clarity inspection and thermal shock evaluation. Each condenser is validated to ensure compliance with ISO and ASTM borosilicate glass performance standards as well as interchangeability requirements for ground glass joints. These rigorous procedures ensure safe, precise and long lasting operation for laboratories requiring high efficiency reflux condensers.