Ai -40°C Cold Trap with 500 mL x 3 Traps, UL/CSA Certified
SKU Description Temperature Range Electrical Quantity Price Add to Cart
T40-UL.110 Cold Trap with 500mL x 3 Traps (1,500mL capacity) Ambient to -40 °C 110V 60Hz 1-PH, UL/CSA Certified 1 Each
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T40-UL.220 Cold Trap with 500mL x 3 Traps (1,500mL capacity) Ambient to -40 °C 220V 60Hz 1-PH, UL/CSA Certified 1 Each
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The Ai 2nd Gen -40°C/F T40 cold traps now all come UL/CSA certified, standard. They have a much smaller footprint, but at the same time, offering you the same cooling power, 1.5x reservoir and 1.6s trap capacity. New upward hose barb ports provide you safer and easier vacuum tubing connection and removal.

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 UL/CSA certified T40-UL -40°C/°F cold trap features

  • UL 471:2010 and CSA C22.2 certified
  • 1.5X more reservoir and 1.6X more trap capacity compare to its predecessor
  • No dry ice or liquid nitrogen needed
  • All steel housing for durability
  • Small footprint, built-in swivel casters for mobility
  • Plug and play, no assembly required


Model T40-UL
Electrical requirements 110V or 220V, 60Hz 1-PH
Compressor Make Embraco
Compressor Refrigerant R404A (220g)
Cooling Capacity @ -10°C: 300W
@ -20°C: 250W
@ -30°C: 150W
@ -40°C: 50W
Reservoir Volume 1.3 gallon (5 liters)
Reservoir Dimensions 6.25in Diameter; 9.5in Depth
Temperature Range ambient to -40°C (-40°F)
Temperature Display Digital, °C
Temperature Sensor Pt100
Exterior Finish powder coated steel
Interior Finish polished type 304 stainless steel
Trap Material high borosilicate glass 3.3
Trap Volume 500 mL
Trap Dimensions 2in x 11.5in
Trap 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 weight 100 Lb
Unit dimensions 13 x 18 x 26" (WxDxH)
Compliance UL 61010-1: 2012 Ed.3+R:29Apr2016
CSA C22.2#61010-1: 2012 Ed.3
Warranty One year

Kit Includes

Part Description Quantity
Ai T40-UL -40°C/°F cold trap 1 Each
Glass trap with upward ports 3 Each
3/8" silicone vacuum tubing 10 ft
Radiator cleaning brush 1 Each
3/8" hose barb to KF25 flange adapter 2 Each
KF25 quick clamp and centering ring 2 Sets

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