- 250 ml Borosilicate 3.3 aspirator bottle
- Features outlet for tubing
- Standard ground joint (19/26)
- Outlet suitable for 10 mm tubing
- Low temperature gradient – can withstand high temperatures and thermal shocks*
- Superior chemical durability*
- Autoclavable
OVERVIEW:
GWSI Glass Lab (Ambala, Haryana — the Science City) makes this 250 ml aspirator bottle with a tubing outlet from premium borosilicate 3.3 glass. It delivers high thermal shock resistance, full chemical inertness, and autoclavable durability for compact aspiration and vacuum work. The tubing outlet allows flexible hose connections for controlled draining at this practical small scale.
HISTORY:
Compact aspirator bottles with tubing outlets developed for labs that needed small-volume vacuum collection with flexible hose freedom. The tubing adapter gave greater setup flexibility than rigid stopcocks. GWSI continues that practical tradition, crafting 250 ml borosilicate 3.3 aspirator bottles for modern pharmaceutical and educational labs.
APPLICATIONS:
– Pharmaceutical small-volume aspiration with flexible tubing
– Biotech vacuum filtration and draining via hose at compact scale
– Industrial aspiration and recovery in small batches
– School, colleges, university, and educational institutes
– Research labs using flexible outlet configurations for aspiration
MANUFACTURING PROCESS:
GWSI melts pure borosilicate 3.3, shapes the 250 ml body and tubing outlet joint through master hand-blowing or automated molding, applies ceramic glass fusing for joint strength and seal precision, then runs a controlled annealing cycle to fully eliminate thermal stress.
TESTING PROCESS:
First test done by manual inspection of outlet alignment, joint fit, and body soundness, followed by polarization stress test under polariscope light to confirm zero internal stress. Final verification uses I.S.O. DIN standard manual or automatic testing machines with NABL gravimetric calibration for dimensional reference accuracy where applicable.
PRINTING PROCESS:
This permanently fuses labels into the glass matrix, so they survive acids, steam, and frequent cleaning.
PACKAGING PROCESS:
Every bottle passes cosmetic sorting to catch imperfections, bubbles, or joint defects. Approved pieces are packed in heavy-duty double-wall boxes with shock-absorbing bubble wrap for safe export delivery.
MAINTENANCE & SAFETY:
– Clean gently with mild detergent or compatible solvent; rinse thoroughly after aspiration cycles.
– Fully autoclavable for sterile aspiration protocols.
– Store upright in a stable rack; protect tubing outlet and joints with sleeves.
– Inspect outlet and joints before vacuum or pressure use; retire cracked pieces.
– Handle with care; precise joints and outlets are durable but fragile to impact