Trap Vapors Efficiently Before Reaching Vacuum Pumps To -90ׄ°C. SP FTS Vapor Trap is a mechanically refrigerated cold trap that protects expensive vacuum pumps from harmful vapors which can shorten their life. Harmful vapors constitute any condensable gases such as water vapor, which, when allowed into the vacuum pump oil, cause it to break down. This results in decreased lubrication and can eventually cause failure of the pump. In addition, Vapor Trap eliminates the expense and potential hazards associated with the refilling and monitoring of LN2 or dry ice traps. Vapor Trap consists of a well-insulated stainless-steel chamber cooled by direct expansion of refrigerant in refrigeration lines directly bonded to the outside of the chamber walls. This method of refrigeration is a highly efficient and energy-saving means of heat removal. Chamber volume 4 liters. Trapping rate 3 liters in 24 hours. Lowest temperature -90°C. Stainless steel vacuum top plate. 120v, 60Hz, 9A