Dewar Flasks

Wessington Cryogenics - Manufacturer of cryogenic vessels for liquid nitrogen, argon, oxygen, helium and CO2
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4150 Dewar Flasks


Materials:
bullethigh-density polyethylene
bullethigh-density polyethylene cover
bulletpolyethylene-coated handle
Shatterproof. For short-term storage of ice water, dry ice-solvent and liquid nitrogen. Chemical-resistant HDPE double walls are filled with CFC-free urethane foam and withstand temperatures from -196°C to +100°C. Vented, insulated cover. All sizes feature molded-in ribs for added safety when held. Built in spout for easy pouring.  Finger grip on bottom for secure handling. Convenient bail-type handle on 1-, 2- and 4-liter sizes


Cat. No. 4150 -1000 -2000 -4000 -9000
Cap., liters 1 2 4 10
I.D. at mouth, mm; in. 95; 3-3/4 121; 4-3/4 146; 5-3/4 197; 7-3/4
Inside depth, mm; in. 194; 7-5/8 225; 8-7/8 287; 11-5/16 394; 15-1/2
Overall ht., mm; in. 229; 9 260; 10-1/4 324; 12-3/4 457; 18
         
Time to reach 50% * 3.75 5.25 7.25 11.5
Time to reach 0% * 9 14 19 29

* Dewars filled with liquid nitrogen to approximately 75% capacity at time 0. Percent remaining determined by weight.