LCN 7394800
For processing samples with ultra low eutectic points. Secondary Trap
connects in series with a freeze dry system and vacuum pump to prevent
contaminants from migrating into the vacuum pump. After pulling a
vacuum, liquid nitrogen may be introduced via the liquid nitrogen port.
Liquid nitrogen cools to -196° C (-321° F) to trap contaminants with low
eutectic points. The well may be defrosted and the liquid drained from
the drain hose. Glacier white epoxy-coated steel construction. Two
valves may be opened (trap) or closed (by-pass). Opened valves allow
gaseous contaminants to be trapped in the liquid nitrogen well. Closed
valves allow gaseous contaminants to by-pass the well during defrosting
and draining. 3/4" OD inlet and outlet connections. Includes an
insulated filler tube for connection to a user-supplied liquid nitrogen
tank; 20" rubber tubing; 3/4" ID x 3/8" wall; and two clamps. Liquid
nitrogen is required (not included).