Liquid Helium Dewars

The liquid helium dewar product series is designed for the transportation and storage of cryogenic liquid helium, providing reliable solutions for applications in low-temperature superconductivity, NMR (nuclear magnetic resonance), and mega-science projects. As a critical component of cryogenic systems in the liquid helium temperature range, the entire series incorporates vacuum-insulated multilayer wrapping, vapor-cooled shielding, and cryogenic adsorption technologies to minimize helium evaporation rates. Featuring advanced thermal insulation design, these dewars require no liquid nitrogen pre-cooling and are user-friendly for operation and maintenance.

Structural Features:
● High-vacuum super-insulation structure with a 5-year vacuum guarantee.
● Ultra-low heat leakage for extended liquid helium preservation.
● No liquid nitrogen jacket required.
● Supports multi-port refilling, transfer, and experimental operations.
● Constructed with austenitic stainless steel for durability.
● Wide-neck design with optional side-discharge ports to meet diverse application needs.

Cryostats

Cryostats utilize cryogenic fluids or other methods to maintain samples at a constant low temperature or achieve controlled temperature variations, enabling the measurement of one or multiple physical properties. A cryostat refers to the integrated system of an experimental dewar vessel and its internal apparatus, widely used in:

Thermal property measurements at cryogenic temperatures.

Mechanical property testing of materials under low-temperature conditions.

Optical physics research.

Magnetothermal characterization of materials.

Superconductivity experiments.

We undertakes the design, fabrication, and integration of customized cryostats for diverse applications.

Cryogenic Distribution Valve Box

The cryogenic distribution valve box is a critical component of cryogenic systems, designed to distribute cryogenic fluids to various endpoints through distribution valves, ensuring the proper operation of cryogenic systems and equipment. It primarily consists of a vacuum-insulated cold box, cryogenic valves, cryogenic bayonets, multi-layer insulation, safety pressure relief devices, and temperature and pressure measurement systems. We undertakes the design, manufacturing, and integration of various types of cryogenic valve boxes.

Cryogenic Transfer Lines

Cryogenic transfer lines are essential components of cryogenic systems, used to transport cryogenic fluids to different endpoints. These lines employ vacuum multi-layer insulation to minimize heat leakage and are primarily composed of an outer pipe, vacuum interlayer, multi-layer insulation, insulating supports, expansion joints, and radiation shields. Depending on the quantity of cryogenic fluids being transported, they can be classified as single-channel or multi-channel cryogenic transfer lines. Based on rigidity, they can be categorized as rigid or flexible pipes. We undertakes the design, manufacturing, and integration of various types of cryogenic transfer lines.

Cryogenic Support Systems
● Cryogenic system planning and design
● Cryogenic system layout
● Cryogenic fluid distribution system design and manufacturing
● Cryogenic system piping design and manufacturing
● Cryogenic system control system design and manufacturing
● Cryogenic system joint commissioning
● Cryogenic system maintenance and servicing