AI Accessories T40 -40°F 300ml x 3 Cold Trap for Safe Vacuum Operations

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  • Regular price $2,990.00

In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it. Particularly large cold traps are necessary when removing large amounts of liquid as in freeze drying.

Pumps that use oil either as their working fluid (diffusion pumps), or as their lubricant (mechanical rotary pumps), are often the sources of contamination in vacuum systems. Placing a cold trap at the mouth of such a pump greatly lowers the risk that oil vapors will back stream into the cavity.

Care should be taken when using a cold trap not to condense liquid oxygen (a light blue liquid) into the cold trap. Liquid oxygen is potentially explosive, and this is especially true if the trap has been used to trap solvent. Liquid oxygen can be condensed into a cold trap if a pump has sucked air through the trap when the trap is very cold.

Ai T40 -40°C/°F cold trap features

  • No dry ice or liquid nitrogen needed
  • All steel housing for durability
  • Small footprint
  • Plug and play, no assembly required


 Model  T40
 Electrical requirements
 110V 60Hz 1-PH 6A or 220V 50/60Hz 1-PH 3A, 660 watts
 Compressor  Make: Embraco
 Power: 1/3 HP (single stage)
 Refrigerant: R410A
 Cooling capacity
    110V: 1030 BTU / 260 Kcal/h / 302W
    220V: 840 BTU / 212 Kcal/h / 246W
   0.9 gallon (3.5 liters)
op diameter 7 inches
   Bottom diameter 6 1/2 inches
   Height 8 1/4 inches
 Range: -40°F (-40°C) to ambient
 Display: digital
 Unit: °F
 Finish  Exterior: powder coated steel
polished type 304 stainless steel
 Trap  Material: high borosilicate glass 3.3
 Volume: 300ml
 Quantity: three 
 Vacuum connection  3/8" hose barb
 Recommended coolant  For 50°F/10°C or higher: purified water
 Between 50°F/10°C and -40°F/°C: 50% Ethylene glycol + 50% purified water
 Unit/shipping weight
 68 Lb / 115 Lb
 Unit/shipping dimensions  
 17.5 x 22 x 28" / 25 x 29 x 38" (WxDxH)

Standard package

 Part description


Part image

 Ai T40 -40°C/°F cold trap
1 pc

 Glass trap
3 pcs

 3/8" premium food grade silicone vacuum tubing (cut to fit your setup)
10 ft
 Sealing gasket
2 pcs

 3/8" hose barb to KF25 flange adapter 2 pcs
 KF25 quick-clamp and centering ring  2 sets
 User's manual 1 pc