Product Overview
LN2 Dewar from a Germanium Detector Setup, Atmospheric Working Pressure
Condition
Used, in good and clean condition for an older unit; it was used with a germanium detector, so no cap is included, and nothing rattles or moves inside when it is turned upside down. Visual inspection only. Function testing not performed. Markings legible: type LR-31, mfg. serial no. 80RF-170, working pressure ATMOSPHERIC, UNION CARBIDE CRYOGENIC PRODUCTS, CAUTION vacuum-insulated container, made in U.S.A., PATENTED, and a CAUTION EXTREMELY COLD LIQUID NITROGEN label.
Ships from our Idaho warehouse the same or next business day. We've been selling online since 1999.
Product Overview
A vacuum-insulated dewar from Union Carbide's cryogenic products line, built to hold liquid nitrogen at atmospheric pressure.
Key Features
- Working pressure ATMOSPHERIC
- Vacuum-insulated container
- For liquid nitrogen, and also usable with liquid argon
- Two handles on the shoulder and a short side tube
- Open neck with a bolt-hole ring
Applications
- Replacing a dewar on a germanium detector setup that uses an LR-31
- Holding liquid nitrogen or liquid argon at atmospheric pressure in a lab
Frequently Asked Questions
Can I keep liquid oxygen in it?
No. It is not for use with liquefied oxygen or air. Liquid argon is allowed.
Is it a pressure vessel?
No. Its working pressure is ATMOSPHERIC.
Does it come with a cap or neck plug?
No. It was used with a germanium detector, so no cap is included.
Has its vacuum hold been tested?
No. Visual inspection only, and nothing rattles or moves inside when it is turned upside down. You get a clean used dewar with its labels in place; checking its hold time on a first fill is yours. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
This one was used with a germanium detector, and the cap stayed with the detector. Nothing rattles inside when it turns over, which is the first thing a dewar buyer listens for.
