Metal Sieve Vacuum Traps
Molecular Sieve Vacuum TrapsParticulate Traps
Liquid Nitrogen Vacuum Traps
Vacuum Traps (or, Foreline Vacuum Traps) on high vacuum and ultra-high vacuum systems are placed between the high vacuum pump and the backing pump. Vacuum traps are specifically designed to preclude various contaminants from entering the vacuum pump. Types of vacuum trap media include metal sieve, molecular sieve, metal or fiberglass fiber and liquid nitrogen. Other traps can be outfitted with activated Charcoal or Zeolite.
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Metal Sieve Traps
Metal Sieves are used with hydrocarbons to prevent any back stream when mechanical pump oil reaches vapor pressure. Sieve Traps are manufactured out of 304 stainless steel and outfitted with stainless steel mesh or copper mesh material.
Molecular Sieve Traps
Molecular Sieve traps perform two functions simultaneously. The first function is the removal of hydrocarbons that may back stream toward the chamber when desired pressure is reached. Secondly, water vapor and other gasses can be removed from the atmosphere before reaching and contaminating the pump oil. To initialize or replace the sieve, heat needs to be injected into the system to remove all imperfections caught within the system by simple turning on the heater and allowed to run for 4 hours with the ballast valve open.
For filtration media, particulate traps use a polyester media (5 microns), fiberglass filter media (0.3 microns), activated carbon, zeolite or other media (contact us for more info) to trap contaminants at a 98% efficiency. Each material can perform a different function to improve filtration of contaminants before reaching the vacuum pump.
Liquid Nitrogen pumps condensed gasses in a system before they can reach and contaminate the oil. Conversely, they also ensure fumes from the oil do not contaminate the vacuum chamber. Dual-tube traps allow for the attachment to a nitrogen source so as to never have to refill the trap.
Helium Leak Detector Inlet Filter
Dust, dirt and particulate can over time severely damage an expensive an expensive mass spectrometer helium leak detector. The LDL/LDS Series Helium Leak Detector Filter traps particles before they can get into mass spec. Available in Angle, Straight-Thru & T-Style configuration.