Vacuum Insulated Transfer Siphon

Product catalog summary

Overview

The document presents Cryotherm's Vacuum Insulated Transfer Siphon designed for low-loss transfer of liquid helium (LHe). It highlights the product's super-insulated, highly flexible hoses and robust stainless steel construction, optimized for minimal heat transfer and ease of handling.

Main Features and Advantages

Highly flexible hoses enabling easy handling and versatile applications.
Improved insulation through thin-walled tubes and spacers.
Optimized super-insulation for low heat transfer and minimal helium loss.
Extendable filling and withdrawal tubes for adaptability.
Bend protection options to enhance mechanical durability.
Outer jacket options ranging from pressure-resistant and robust to super-light and highly flexible.
Customizable valves and connections tailored to customer requirements.

Siphon Configurations

The siphons are available in various configurations to suit different applications:

Angle siphon
Siphon with flexible hose
Siphon with rigid hose

All siphons maintain a permanent vacuum to ensure the lowest transfer losses.

Valve and Safety Components

Manual shut-off valves: DN9 (O-ring sealed) for short transfer times and flexible use; DN5/DN7 (bellows sealed) installed in filling tubes to minimize evaporation and contamination.
Solenoid valve DN4: Electrically controllable for automatic filling operations.
Vacuum seal-off and safety devices: DN16 rated for maximum operating pressure of 2 bar, ensuring safe operation.

Integration and Anti-Oscillation Device

The siphon can be permanently installed in STRATOS® vessels with a patented anti-oscillation device, offering:

Low evaporation rates
No helium loss during installation
Suitability for rooms with low height
Reduced wear due to vessel integration

Technical Specifications and Variants

The document details multiple variants and dimensions for siphon components:

Withdrawal Tube (A): Standard length 1600 mm, diameter 12 mm, with options for straight, angled, or extended tubes.
Transfer Line (B): Flexible with braiding, lengths ranging from 1000 to 6000 mm; rigid intermediate pieces available.
Filling Tube (C): Standard length 700 mm, diameter 12 mm, with options for small flange connections, straight or angled sections.
Integrated Valve (D): Options include no valve, valve in male or female coupling, and angle-shaped solenoid valve.

Important Note: Certain valve combinations may create shut-off areas requiring additional safety valves to prevent hazards.

Accessories and Additional Components

Plug-in couplings with integrated manual shut-off valves for easy connection and operation.
Protective closures, angle adapters with LHe couplings, and braided transfer lines.
Adapters for different vessel types and sizes, including 40’ LHe vessels.
Level and temperature probes, filling control systems, and pressure transmitters for monitoring and automation.

Applications

The siphons are suitable for transferring liquid helium from storage vessels (HELIOS®) to transport vessels (STRATOS®), and further to MR tomographs or cryostats. They support both manual and automated filling processes and are adaptable to various research and industrial environments.

Company and Support

Cryotherm GmbH & Co. KG offers comprehensive services including installation, assembly, maintenance, spare parts, training, and after-sales support. The company provides customized cryogenic solutions across multiple sectors such as microelectronics, analytics, environmental protection, and life sciences.

Contact information is provided for Cryotherm in Germany and Cryotherm Inc. in the USA.

Catalog excerpts

Vacuum Insulated Transfer Siphon … for low-loss transfer of liquid helium

Open the catalog to page 1

Bend protection and pressure valve The liquid helium is withdrawn from a vessel using a siphon, which is available in various configurations: • Angle siphon • Siphon with flexible hose • Siphon with rigid hose Cryotherm siphons are made from super-insulated hoses and provided a permanent vacuum. These features guarantee the lowest transfer losses at all times. • Highly flexible hoses for easy handling and versatile applications • Improved insulation using thin-walled tubes and spacers • Low heat transfer through optimised super-insulation • Easy handling • High functionality • Extendable filling...

Open the catalog to page 2

Permanently installed siphon in STRATOS® vessel with patented anti-oscillation device: • Low evaporation rate • No helium loss during siphon installation • Ideal for room with low height • Low wear of siphon due to vessel integration Manual shut-off valve with LHe male coupling Manual shut-off valve DN9, O-ring sealed - Short transfer times - Flexible use with add-on adapter set - Standard for STRATOS® vessels - Combined with anti-oscillation device Withdrawal tube Protective closures Manual shut-off valve DN5/DN7, bellows sealed - Installed in the filling tube to save space - Low maintenance...

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lSl ... the appropriate siphon for every application Standard Siphon VHF DN5 A Withdrawal Tube Uninsulated extension Variant A4 Small flange connetion Variant A5 Straight withdrawal tube

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Easy withdrawal from helium vessels B Transfer line Variants C1, C2, C3: Uninsulated extension Variant C4 Small flange connection D Integrated Valve in filling tube Without valve in filling tube Variant D4 Angle shaped solenoid valve DN4 Caution: valve combination can produce shut-off areas, which must be secured with a safety valve. Combination of variants D3 and D4 without a safety valve is possible.

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LHe filling system from a 40' LHe vessel into LHe transport vessels Filling angle with integrated LHe shut-off valve and small flange connection Item No. 79404403 with plug-in coupling suitable for Vh UNF vessel Item No. 79420581 Other available diameters Clamping ring KF25 Item No. 79405158

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transfer system from transport vessels (STRATOS®) to MR tomographs or cryostats LHe angle adapter PHILIPS Item No. 79422293 LHe angle adapter ELSCINT Item No. 79422488 Helium siphon for STRATOS® 250 SL or other LHe vessels Item No. 78200926 Siphon extension GENERAL ELECTRIC Item No. 79422294 Siphon extension SHIMADZU Item No. 79423745 LHe transfer from storage vessel (HELIOS®) to transport vessel (STRATOS®) P/T measuring unit for automatic filling shut-off for installation into He exhaust line Siphon extension TOSHIBA

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NITROGEN VESSELS APOLLO® LIN-Supply Vessel (50 - 350 l) · JUNO® LIN-Supply Vessel (30 l) SIRIUS® LIN-Supply Vessel (1,000 - 2,000 l) · SATURN® LIN-Transport Vessel (50 - 300 l) MERKUR® LIN-Transport Tank (500 - 3,000 l) · STELLA®-Working Vessel (0.5 - 10,000 l) · LAB® Dewar Series (4 - 50 l) BIOSAFE®-SYSTEMS / LIFE SCIENCE BIOSAFE® MDß-Sample Storage System (Medical Product) (120 -1,400 l) · BIOSAFE® SCß-Sample Storage System (120 -1,400 l) BIOSAFE-CONTROL®ß · CRYO-MESSENGER® Remote Monitoring System · BIOSAFE® X/S-Series · Vapor Shipper STELLA®-Working Vessel (0.5 - 10,000 l) · Controlled Rate...

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