Borosilicate Glass Spherical Vessels & Boiling Flasks
Goel Glass manufactures heavy-duty Borosilicate Glass Spherical Vessels engineered for batch reaction, evaporation, fractional distillation reboiling, and liquid collection across North American chemical, pharmaceutical, and essential oil industries.
The spherical geometry provides the highest structural strength for full vacuum operations, ensures uniform heating distribution across mantle or bath contact surfaces, and minimizes mechanical stress concentrations during thermal cycles.
Spherical Vessels – General Operating Data
| NOMINAL CAPACITY (LTRS.) | MAXIMUM PRESSURE (BAR) |
|---|---|
| 5 | 1 |
| 10 | 0.8 |
| 20 | 0.7 |
| 50 | 0.5 |
| 100 | 0.4 |
Five Neck Bottom Outlet Spherical Vessel
| CAT.REF. | NOMINAL CAPACITY | L | DN | DN1 | DN2 | DN3 |
|---|---|---|---|---|---|---|
| VS 5 | 5 L | 425 | 50 | 25 | 25 | 40 |
| VS 10 | 10 L | 575 | 80 | 25 | 25 | 40 |
| VS 20 | 20 L | 650 | 100 | 25 | 25 | 40 |
| VS 50* | 50 L | 840 | 100 | 40 | 40 | 100 |
| VS 50A | 50 L | 840 | 150 | 40 | 40 | 100 |
| VS 100* | 100 L | 950 | 150 | 40 | 40 | 100 |
| VS 100A | 100 L | 950 | 225 | 40 | 40 | 100 |
Vessels With Bottom Outlet Valve Seat
To fit a bottom outlet valve (BAL type) all spherical and cylindrical vessels can be supplied with valve seat in bottom outlet.
- DN is used for stirrer fixing or vapour outlet.
- DN1 is used for drain and for fixing immersion heat exchanger.
- DN2 is used for thermometer pocket, dip pipe, sparger, vacuum control/vent valve and solid addition.
- DN3 is used for vapour outlet when stirrer is fixed and can also be used for cleaning.
- Long bottom outlet vessels can be supported in heating mantle/bath. Short bottom outlet vessels require a vessel holder. Up to 20 L, vessel holding rings may be used.
Key Features
- Borosilicate Glass Construction: Outstanding resistance against thermal shock and highly aggressive corrosive chemical mixtures.
- Uniform Wall Thickness: Carefully blown and annealed to ensure consistent thermal transfer and high vacuum endurance down to -1 bar.
- Flexible Nozzle Configurations: Available with central main necks and multiple angled side nozzles for agitators, condensers, liquid addition, and temperature sensors.
- Bottom Drain Compatibility: Lower outlet nozzle accepts flush-bottom valves for zero-dead-space drainage.
Applications
Core component for simple and fractional distillation units, batch chemical synthesis, liquid-liquid extraction, solvent recovery, and pharmaceutical pilot plants.