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- Cryogenic Equipment & Storage Vessels
- Speciality Gases & Equipment
Dewars and Dewar accessories
Only custom-made cryogenic equipment should ever be used to handle cryogenic products.
BOC has selected a range that performs to extremely high standards of both quality and safety.
Storage vessels
These products are designed for storing or handling small quantities of liquid nitrogen.
For cryogenic storage vessels which receive and hold deliveries of liquid products, please visit the cryogenic vessels page.
Small laboratory open dewars

This range of open dewars is ideally suited to a wide range of applications within general laboratory environments.
- open neck stainless steel dewars
- suitable for short term storage or immersion applications
- resistant to vibration, impact and shock
- come complete with handles and lids (except 0.6 litre dewar)
| Part no: | Capacity (Litres) |
External Diameter (mm) |
External Height (mm) |
Empty Weight (kg) |
Full Weight (kg) |
|---|---|---|---|---|---|
| 19310935 | 0.6 | 87 | 204 | 0.5 | 1.0 |
| 11858846 | 0.9 | 107 | 232 | 0.9 | 1.6 |
| 11880462 | 1.8 | 122 | 312 | 1.3 | 2.8 |
| 11858848 | 2.6 | 200 | 190 | 1.8 | 3.9 |
| 11858849 | 5.5 | 200 | 300 | 2.4 | 6.8 |
Larger Open Dewars
- low pressure withdrawal device
- 51mm and 63mm neck diameter
-
allows safe dispensing of liquid nitrogen
| Part No: | Capacity (Litres) |
Evaporation Rate (L/day) |
Static Holding time (days) |
Empty weight (kg) |
Full Weight (kg) |
Neck Diameter (mm) |
Height (mm) |
|---|---|---|---|---|---|---|---|
| 19311186 | 10 | 0.20 | 50 | 5.5 | 13.7 | 51 | 560 |
| 19311187 | 20 | 0.18 | 111 | 9.1 | 25.3 | 51 | 570 |
| 19311188 | 25 | 0.25 | 100 | 7.4 | 27.6 | 51 | 585 |
| 11881939 | 35 | 0.27 | 130 | 12.2 | 40.5 | 63 | 650 |
| 11881810 | 50 | 0.28 | 179 | 15.5 | 55.9 | 63 | 810 |
Withdrawal Device

- low pressure withdrawal device
- 51mm and 63mm neck diameter
-
allows safe dispensing of liquid nitrogen
| Part no: | Description |
|---|---|
| 19311189 | Withdrawal device for 20 and 25 litre Dewar |
| 19311190 | Withdrawal device for 35 and 50 litre Dewar |
Roller Base

- allows easy and safe movement of dewars
-
adjustable to fit size of dewar
| Part no: | Description |
|---|---|
| 19311198 | Universal Roller Base |
Tipping trolley for 25 litre dewar

- Allows safe movement of 25 litre dewar
| Part no: | Description |
|---|---|
| 19311192 | Tipping Trolley |
