High Pressure Vertical Cryogenic Liquid Helium Welded Insulated Dewar Cylinder

Basic Info

Model NO.	30L-2000L
Type	Low Temperature Storage & Transportation Equipment
Storage Objects	Liquid
Volume	30L-1000L
Weight	114kg
Static Evaporation Rate	1.25%/Day
Diameter	606mm
Height	1546mm
Main Relief Valve Pressure Setting	10psig
Second Relief Valve Pressure Setting	12psig
Transport Package	Wooden Case
Specification	610mm*1527mm
Trademark	Cryo Chains
Origin	China
HS Code	7311009000
Production Capacity	1000units/Per Month

Product Description

LHe Liquid Helium Storage Dewar/Stainless Steel Self-Pressurized Liquid Tank/Cryogenic Container DewarProduct Description

Liquid helium dewar is optimized to minimize the loss of liquid helium in storage, transportation, and distribution.High
efficiency vacuum insulation coating technology, steam cooling multi-cold screen technology and low temperature condensation and adsorption high vacuum technology are adopted to effectively reduce the evaporation rate of liquid helium.Structure Features:1. The liquid helium dewar is made of austenitic stainless steel and has a larger neck, allowing insertion into standard liquid helium lines while eliminating thermal oscillations.It also facilitates the testing of superconducting electrodes and experiments in which the specimen is inserted or immersed in liquid helium;
2. No liquid nitrogen sandwich/helium gas circulation pipeline;
3. Durable, suitable for truck transportation and frequent daily use;
4. Widely used in liquid helium packaging, scientific research and factory liquefaction;
5. One piece caster and base.

Product Parameters

Product Show

Ultra Dewar Structure And Detail DisplayProject Case
Applications

Main applications of liquid helium: cryogenic superconducting and other cryogenic studies (liquid helium is used insuperconducting NMR, spectrometer, magnetoencephalogram, etc.).

Widely used in liquid helium packaging, scientific research and factory liquefaction;Physical&Chemical Property

Chemical symbol: He	Molecular weight: 4.003
Melting point: -272 ºC (25.6bar)	Boiling point (101.325kpa) : -268.9 ºC
Liquid density (101.325 kpa, -269 ºC) : 124.8kg/m3	Gas density (21.1 ºC, 101.325 kpa) : 0.1656 kg/m3
Critical temperature: -267.9 ºC	Critical density: 69.64kg /m3
Critical pressure: 227 Kpa	Specific volume (21.1 ºC, 101.325Kpa) :6.039m3/kg
Heat of vaporization (-268.9ºC, 101.325 Kpa) : 20.4KJ/kg	Heat of vaporization (-268.9ºC, 101.325 Kpa) : 20.4KJ/kg
CV=3.11KJ/(kg.c)	Specific heat ratio: Cp/Cv=1.667

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