90 Degree Vacuum Adapter W/ Flow Control
90 Degree Vacuum Adapter W/ Flow Control
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The 90 Degree Vacuum Adapter with Flow Control is a laboratory glassware component designed to route a compatible vacuum connection through a 90-degree configuration while providing manual flow adjustment through a PTFE stopcock. The published configuration uses a 24/40 ground-glass joint for integration with matching laboratory glassware.
The angled geometry can help position vacuum tubing away from nearby glassware and equipment when the overall setup allows. The PTFE stopcock provides an adjustable restriction point, but it should be treated as a flow-control component rather than a calibrated vacuum-measurement device. Actual vacuum level and response depend on the pump, tubing, seals, connected glassware, process load, and complete system.
Before using the 90 Degree Vacuum Adapter, verify 24/40 joint compatibility and inspect the glass, stopcock, and connection surfaces. PTFE offers useful compatibility with many laboratory materials, but chemical suitability should still be evaluated for the specific process and exposure conditions.
Reduced-pressure glassware requires careful support and inspection. Do not place unsupported tubing loads on the adapter, and do not assume a pressure, vacuum, leak-rate, or temperature rating that has not been documented for the exact component. Use appropriate PPE and shielding for the complete apparatus.
The 90 Degree Vacuum Adapter with PTFE Flow Control provides a compact way to add an angled vacuum connection to compatible 24/40 assemblies. Browse related vacuum adapters, manifolds, receivers, and laboratory glass in our Borosilicate Glass Laboratory Equipment collection.
Frequently Asked Questions
Which joint and stopcock does the adapter use?
The published configuration uses a 24/40 ground-glass joint and a PTFE stopcock.
Does the stopcock measure vacuum level?
No. It provides manual flow adjustment, not calibrated vacuum measurement.
What determines the vacuum level in the apparatus?
The pump, tubing, seals, process load, connected glassware, and complete system affect the vacuum level.
