Catalogue Part 4 - LIQUID HELIUM EQUIPMENT

Q04.1 - Storage and Transport Dewars

Q04.1-060

LHe Dewar

• Superinsulated stainless steel liquid helium dewar (no liquid nitrogen required)
• 68 L capacity, Diameter 24" (61 cm), Height: 51" (130 cm), 190 lb (90 kg)
• Neck 1.5" (3.8 cm) dia, loss 0.9 L/day, with liquid access port and safety valves

Q04.1-060-W

LHe Dewar - Wide Neck

• Superinsulated stainless liquid helium dewar (no liquid nitrogen required)
• 68 L capacity, Diameter 24" (61 cm), Height: 51" (130 cm), 190 lb (90 kg)
• Neck 2.25" (5.7 cm) dia, loss 3 L/day, with liquid access port and safety valves

Q04.1-100

LHe Dewar

• Superinsulated Stainless Steel Liquid Helium Dewar (no liquid nitrogen required)
• 107 L capacity, Diameter 24" (61 cm), Height: 59" (150 cm)
• Neck 1.5" (3.8 cm) dia, loss 0.9 L/day, with liquid access port and safety valves

Q04.1-150

LHe Dewar

• Superinsulated Stainless Liquid Helium Dewar (no liquid nitrogen required)
• 150 Litre capacity
• Neck 1.5" (3.8 cm) dia, loss 1.5 L/day, with liquid access port and safety valves

Q04.1-200

LHe Dewar

• Superinsulated stainless liquid helium dewar (no liquid nitrogen required)
• 200 Litre capacity
• Neck 1.5" (3.8 cm) dia, loss 1.8 L/day, with liquid access ports and safety valves

Q04.1-250

LHe Dewar

• Superinsulated Stainless Liquid Helium Dewar (no liquid nitrogen required)
• 275 L capacity, Diameter 32" (81 cm), Height 64" (163 cm)
• Neck 2.25" (5.7 cm) dia, loss 2 L/day, with liquid access port and safety valves

Q04.1-350

LHe Dewar

• Superinsulated Stainless Liquid Helium Dewar (no liquid nitrogen required)
• 350 Litre
• Neck 2.25" (5.7 cm) dia, loss 2.8 L/day, with liquid access port and safety valves

Q04.1-500

LHe Dewar

• Superinsulated Stainless Liquid Helium Dewar (no liquid nitrogen required)
• 540 L capacity, Diameter 42" (107 cm), Height: 72" (183 cm), 675 lb (307 kg)
• Neck 2.25" (5.7 cm) dia, loss 3.5 L/day, with liquid access port and safety valves

Q04.1-WN4-3P

Wide Neck Option on LHe dewar

• Wide neck diameter 4" to 5.5"
• This option will increase liquid helium loss rate

Q04.1-BSAW

Baffle & support assembly for wide neck dewar

Q04.1-ABSREL

Absolute Pressure Relief Valve

• Absolute pressure relief valve for venting to atmosphere
• Factory-set relief pressure independent of atmospheric pressure
• 1/4 inch female pipe thread

Q04.2 - Experimental Dewars

Give us your specifications!

Q04.3 - Continuous Flow Cooling Systems

Q04.3-CF

Continuous Flow LHe Cryostat

• Continuous flow cryostat with 1.8 m flex transfer line for liquid nitrogen or helium.
• Requires vacuum shroud.
• Uses 0.6 litres/hour LHe nominal

Q04.3-CF-COMP

Continuous flow LHe cryostat, thermal contraction compensated

• LHe/LN2 continuous flow cryostat with 1.8 m flex transfer line
• Thermal contraction compensation to prevent sample motion during cooldown

Q04.3-CF-COMP-W

CF LHe cryostat, thermal contraction compensated

• LHe/LN2 continuous flow cryostat with 1.8 m flex transfer line
• Thermal contraction compensation to prevent sample motion during cooldown
• With water flow stabilization

Q04.3-VS-OA

Vacuum Shroud Optical Access

• Vacuum shroud - optical access style for Q04.3-CF cryostat

Q04.4 - Vacuum Insulated Transfer Lines

Q04.4-NS

LHe Transfer Line

• Liquid Nitrogen Shielded, 17 m long each
• Flexible stainless inner tube ¼" (6.35 mm) OD, 0.022" wall
• Parallel ½" (12 mm) ID flexible bellows stainless steel tube for LN2
• Outer vacuum jacket 2" (50 mm) ID, 2.5" (63 mm) OD flexible bellows stainless tube

Q04.4-U

Liquid Helium Transfer Line "U" style Rigid

Q04.4-.25IDx108"

Liquid Helium Transfer Line

• 108" (2.7 m) flexible length, 0.25" (6.4 mm) ID, 1" (25 mm) ID outer jacket
• Dewar leg: 0.5" (13 mm) OD x 51" (1.3 m) long
• Experimental leg: 3/8" (9.5 mm) OD x 31.5" (80 cm) long with thd tip and sv-9 pump-out port

Q04.4-.25IDx108"-valve

Liquid Helium Transfer Line

• 108" (2.7 m) flexible length, 0.25" (6.4 mm) ID, 1" (25 mm) ID outer jacket
• Dewar leg: 0.5" (13 mm) OD x 51" (1.3 m) long
• Experimental leg: 3/8" (9.5 mm) OD x 31.5" (80 cm) long with thd tip and sv-9 pump-out port with V.J. valve

Q04.4-2x0.5-16.4fx-v-6x0.75

Liquid Helium Transfer Line

• with ¼" OD inner tube

Q04.4-LHe-Custom

Liquid Helium Transfer Line: Customised to user's specifications

Q04.5 - Liquid Level Meters

Q04.5-1200

Liquid Helium Level Meter

• Digital electronically measures the liquid helium level in mm.
• Programmable sample-and-hold electronics with digital display minimizes boiloff.
• Requires industry standard superconducting wire probe sensor (extra).

Q04.5-SEN

Liquid Helium Level Sensor without Installation

• Superconducting wire liquid helium level sensor without installation.
• 0.5 cm diameter, 43 cm active length

Q04.5-INS

Liquid Helium Level Sensor Installed

• Superconducting wire liquid helium level sensor including installation.

Q04.5-DP

Liquid helium level gauge (dewar mounted)

• Liquid helium level meter option built in gauge
• Differential pressure style with mechanical gauge.
• Must be ordered concurrently with liquid helium dewar

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