Adapter Cone with Rubber Tubing
| CAT NO | CONE SIZE | PACK OF |
| 14/23 | 1 | |
| 19/26 | 1 | |
| 24/29 | 1 | |
| 29/32 | 1 |
OVERVIEW :
GWSI Adapter Cone with Rubber Tubing with Screw Thread connects ground-joint glassware to flexible rubber tubing with a secure threaded hold. Made from premium borosilicate 3.3 glass, it delivers high thermal shock resistance, strong hydrolytic resistance, and excellent chemical inertness. Manufactured by GWSI Glass Lab in Ambala, Haryana, India, it supports clean gas, vacuum, and liquid transfer in demanding lab assemblies.
HISTORY :
Cone-to-tubing adapters developed as interchangeable ground joints became standard in early 20th-century lab glassware. The screw thread version solved the need for a firmer tubing connection during vacuum work, gas flow, and repeated handling.
APPLICATIONS :
* Used in pharmaceutical labs for vacuum lines, solvent transfer, and gas delivery systems.
* Suitable for biotech workflows needing autoclavable lab glass with secure flexible tubing links.
* Applied in industrial laboratories for distillation support, filtration, chemical transfer, and process testing.
MANUFACTURING PROCESS :
GWSI manufactures each adapter by melting high-purity borosilicate 3.3 glass and shaping the cone, stem, and screw-thread profile through master hand-blowing or precision automated molding. The formed adapter is annealed in a controlled furnace to relieve thermal stress and improve strength during repeated heating and cooling.
TESTING PROCESS :
Each adapter is checked by a polarization stress test using a Polariscope to confirm zero residual stress and stable glass performance.
PACKAGING PROCESS :
Finished adapters are cosmetically sorted to remove pieces with blemishes, chipped cones, uneven threads, or weak tubing stems. Each unit is packed in heavy-duty double-wall boxes with shock-absorbing bubble wrap for safe export handling.
MAINTENANCE & SAFETY :
* Clean with neutral lab detergent, rinse with purified water, and dry fully before fitting rubber tubing.
* Autoclave only with open ends and loosened threaded fittings to prevent pressure build-up.
* Store padded and separated to protect the cone, screw thread, stem, and ground joint surface.