Chromatography Columns with Socket Cone Sintered Disc Glass Key Stopcock
- With Integral Sintered Disc, Glass key Stopcock, Socket and Cone.
- Manufactured from Borosilicate Glass 3.3.
- Printed in Anti Acid Blue/ white Colour.
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CAT NO Effective Length (mm) Overall Length (mm) Disc Dia. (mm) Socket Size Cone Size Approx OD (mm) Pack Of 100 220 10 14/23 19/26 14 1 200 320 10 14/23 19/26 14 1 300 420 10 14/23 19/26 14 1 300 420 20 24/29 19/26 25 1 400 520 20 24/29 19/26 25 1 400 520 20 24/29 24/29 25 1
OVERVIEW :
GWSI Glass Lab builds chromatography columns featuring a socket cone joint, integrated sintered disc, and glass key stopcock from premium borosilicate 3.3 glass. Engineered for precise separation with built-in filtration, they deliver high thermal shock resistance, full chemical inertness, and hydrolytic resistance. Every column is I.S.O. DIN, NABL calibrated for consistent analytical results.
HISTORY:
Integrated chromatography columns combining socket cone connections, sintered filtration discs, and glass key stopcocks emerged in mid-20th-century separation science to streamline workflows in a single vessel. GWSI updates this integrated concept with borosilicate 3.3 strength, ceramic glass fusing for joints and discs, interchangeable ground fittings, and autoclavable lab glass reliability.
APPLICATIONS:
* Pharmaceutical compound isolation and purification
* Biotech separation and analytical laboratories
* School, college, university, and educational institutes
* Industrial quality control and research labs
* Integrated filtration and flow-controlled chromatography
MANUFACTURING PROCESS:
GWSI melts high-purity borosilicate 3.3, shapes the column tube via master hand-blowing or automated molding, fuses ceramic glass at the socket cone and sintered disc interfaces, applies interchangeable ground joints, and anneals to remove all thermal stress.
TESTING PROCESS:
Each column undergoes manual polariscope stress testing to confirm zero residual stress, then high-precision ISO and DIN standard checks via manual or automatic testing machines, followed by NABL gravimetric calibration for volumetric accuracy.
PRINTING PROCESS:
Scale markings and identification use precision screening with ceramic glass enamels, baked in high-temperature kilns to fuse permanently into the borosilicate 3.3 glass matrix, ensuring they never fade or wash away.
PACKAGING PROCESS:
Cosmetic sorting filters any imperfections, the glass key stopcock is paired securely, and the column is packed in heavy-duty double-wall boxes with shock-absorbing bubble wrap for safe export from Ambala, the Science City.
MAINTENANCE & SAFETY:
* Autoclavable lab glass: sterilize at 121 °C with the glass key stopcock fully open.
* Clean gently with non-abrasive solutions; protect the socket cone, sintered disc, and ground joints from impact.
* Verify hydrolytic resistance before long exposure to acidic or alkaline mobile phases.
* Store upright in padded racks, away from heat sources.
* Check for polarization stress prior to any high-thermal-shock cycle.