Liquid Helium Research Dewars
Liquid Helium Research Dewars Cryo Industries Liquid Helium Research Dewars are finely designed and manufactured using the highest quality materials. A Liquid Helium reservoir dewar with surrounding liquid nitrogen shield and variable temperature insert defines the most popular research dewar. The sample is fast change, top loading and can be manipulated while operating. CIA s LHe research dewars are characterized by a large direct opening to liquid helium. Superconducting magnets and other large inserts are introduced into liquid helium from the top. Inserts are usually supported and sealed by the dewar s top flange. An optical or non-optical tail can be easily integrated into the dewar through a demountable bottom flange. The LHe research dewars are available in either liquid nitrogen shielded or vapor shielded styles, and can be manufactured from: Stainless Steel: All welded construction, very rugged and highly polished for great looks. Aluminum Fiberglass: Vapor shielded aluminum fiberglass is the most popular style for bucket dewars. This style dewar fills fastest and requires no liquid nitrogen maintenance. Belly options are available to increase the liquid helium volume. The epoxy fiberglass necks have helium gas diffusion barriers. The highest efficiency is obtained by a combination of hard shields and multiple soft shields, located in the insulating vacuum space. Fiberglass: Constructed from all G-10 (Epoxy Fiberglass), this liquid helium dewar design uses no metal or metal vapor barriers. Cryo has a team of engineers and physicists who will work with you to create a liquid helium research dewar that meets your specific research needs.
LN 2 Shielded Aluminum & G-10 LHe Dewar CAPPED OFF EVACUATION PORT WITH NW25 FLANGE AND DEMOUNTABLE VALVE OPERATOR (3) LN2 PORTS WITH SAFETY PRESSURE RELIEF AND 3/8" DIA. QUICK CONNECT Aluminum - Epoxy Fiberglass (G-10) Dewars are available in any combination of neck diameters, liquid helium volumes, tail &/or dewar lengths! (8) 1/4-20 TAPPED HOLES EQUALLY SPACED ON A 7.00 DIA, B.C. DEWAR SAFETY PRESSURE RELIEF TOP VIEW 5.88 I.D. (4) LIFTING LUGS 20.00 6.00 I.D. G-10 LIQUID NITROGEN RESERVOIR 52.75 14.75 24.00 O.D. (ALUM.) 16.00 O.D. (ALUM.) LIQUID HELIUM RESERVOIR SUPERINSULATION 6.12 I.D. (ALUM.) 13.00 Model No.: AFD-2420-NSB IS THE SOLE PROPERTY OF PERMISSION OF IS STRICTLY Industries of America Inc. 11124 S WILLOW ST., Manchester N.H. 03103 LIQUID NITROGEN SHIELDED ALUMINUM AND G-10 LHe DEWAR
Stainless Steel Closed N2 Reservoir LHe Dewar #2-274 O-RING 10.25 I.D. (260 mm) (6) 1/4-20 TAPPED HOLES ON A 11.00 (279.4 mm) DIA. B.C. 5.00 (127 mm) VACUUM VALVE WITH SAFETY PRESSURE RELIEF AND PROVISION FOR T/C VACUUM GAUGE PROVISION FOR SENSOR INSERT LN 2 VENT 6.00 (152 mm) LN 2 FILL NW-40 FLANGE 48.12 (1222 mm) NW-50 FLANGE 2.00" O.D. PUMPING ARM WITH SAFETY PRESSURE RELIEF TOP VIEW LIFTING LUGS LIQUID NITROGEN RESERVIOR 51.00 (1295 mm) 15.00 O.D. (381 mm) 13.50 O.D. (343 mm) 11.00 O.D. (279 mm) 10.OO O.D. (254 mm) Open neck or bucket dewars available with choice of helium reservoir diameters from 3 inches and up. ALUMINUM RADIATION SHIELD WITH VACUUM PORT Model No.: 10CR-CN CHARCOAL GETTER IS THE SOLE PROPERTY OF PERMISSION OF IS STRICTLY Industries of America, Inc. CLOSED NITROGEN RESERVOIR LIQUID HELIUM RESEARCH DEWAR
Vapor Shielded Liquid Helium Dewar 3.50 2.438 Ø5.875 I.D. 4.000 6.00 I.D. G-10 13.000 VACUUM VALVE 1.75 1.56 (3) LIFTING LUGS (ROTATED INTO VIEW) BURST DISK PRESSURE RELIEF 1.68 3.000 Ø8.25 O.D. Ø7.25 O.D. 50.000 Ø6.00 I.D. 54.000 Ø12.38 O.D. 36.000 This LHe Research Dewar features multiple vapor shields and is available in various LHe reservoir diameters! MULTI LAYERED SUPER INSULATION 1.000.500 Model No.: VSD-591M4 IS THE SOLE PROPERTY OF PERMISSION OF IS STRICTLY Industries of America, Inc. 11124 South Willow Street, Manchester, NH 03103 VAPOR SHIELDED LIQUID HELIUM DEWAR
Vapor Shielded Liquid Helium Belly Dewar EVACUATION PORT WITH NW25 FLANGE (RE-PUMP REQUIRES A DEMOUNTABLE VALVE) 6.88 I.D. (8) 1/4-20 TAPPED HOLES EQ. SP. ON A 8.00 DIA. B.C. BURST DISK PRESSURE RELIEF 15.94 (3) LIFTING LUGS 20.19 O.D. ALUM. 7.00 I.D. G-10 VACUUM MAINTENANCE SYSTEM MULTIPLE VAPOR COOLED SHIELDS 21.94 'BELLY'=APPROX. 55 LITERS 47.75 16.00 O.D. ALUM. 51.75 APPROX. MULTI-LAYERED INSULATION 7.12 I.D. ALUM. Industries of America, Inc. 11124 S. Willow Street, Manchester, N.H. 03103 Model No.: VSD-1818-R7 IS THE SOLE PROPERTY OF PERMISSION OF IS STRICTLY VAPOR SHIELDED LIQUID HELIUM 'BELLY' DEWAR
All Fiberglass (G-10) LHe Dewar 3.9 (99 mm) TOP FITTING 3.00 5.00 EVACUATION VALVE WITH DEMOUNTABLE OPERATOR Non-Metallic Non-Magnetic Epoxy Fiberglass LHe Dewar features NO metal or metal vapor barriers. LIQUID NITROGEN RESERVOIR 950 mm 860 mm (37.402) (33.858) 4.00" I.D. (101mm) 4.50" I.D. 6.50" I.D. 7.00" I.D. (178mm) 7.25" O.D. (184 mm) 1.500 Model No.: EFD-675-DNM IS THE SOLE PROPERTY OF PERMISSION OF IS STRICTLY Industries of America Inc. 11 Industrial Way, Atkinson N.H. 03811 ALL FIBERGLASS LIQUID HELIUM RESEARCH DEWAR