Description & Features
Glass cone-checking taper plug and ring gauges are used to inspect conical ground glass laboratory joints (male/female) for proper fit and leak-tightness.
Constructed in compliance with ISO 383, BS 572/2761 and IS 5165, using the standard 1:10 taper.
Typically made of ground borosilicate glass or stainless steel (for heavy-duty use), ensuring accurate conicity and smooth finish.
- High-precision grinding to +/-0.05 mm ensures tight, leak-proof fit.
- Durable materials: borosilicate glass or SUS-303 stainless steel rod.
- Available in ISO, ASTM and BS/IS lengths and sizes.
Common Uses
- Verifying conical ground glass joints on flasks, condensers, adapters, Schlenk tubes.
- Ensuring interchangeability and leak-tightness in distillation, reflux, and vacuum setups.
- Routine QC inspection in manufacturing of lab glassware.
- Inspection before assembly to pre-empt binding ("frozen" joints) or leaks.
Scope of Supply
Sold separately or in matched sets of plug and ring gauges.
Available in full, medium and ISO standard lengths. Sizes from 5/13 up to 85/55.
Options include glass gauges and stainless steel versions to suit lab or industrial usage.
Each gauge is engraved with nominal size and length for clear identification.
Care & Safety
- Use a thin layer of joint grease or PTFE sleeve if frequent use is expected.
- Clean after use; inspect for chips or wear to maintain sealing accuracy.
- Avoid thermal shock - use gentle cleaning and avoid extreme temperatures.