Cryogenic 195L Industrial Dewar Flask

| Product Overview

The 195L Dewar Flask (Model: DPL-450-195L) is a high-performance low-temperature thermal insulating pressure vessel designed for the storage and transport of cryogenic liquids including liquid oxygen (LO2), liquid nitrogen (LN2), liquid argon (LAr), liquid carbon dioxide (LCO2), and liquefied natural gas (LNG). Featuring a double-layer stainless steel structure with a high-vacuum sandwich and 25-layer multi-insulated layer, this dewar flask minimizes heat transfer to reduce cryogenic liquid evaporation. With an effective volume of 185L and maximum filling capacities ranging from 73kg (natural gas) to 233kg (argon), it provides continuous gas supply for diverse applications. Boasting 1000 units in stock, it offers reliable cryogenic storage solutions for scientific, industrial, and healthcare sectors.

| Core Advantages

Exceptional Thermal Insulation

High-Vacuum Insulation System: The sandwich layer between inner and outer bodies is pumped to high vacuum, combined with 25 layers of thermal insulation materials to achieve extremely low heat transfer rates.

Minimal Evaporation Loss: Superior insulation performance significantly reduces daily evaporation of cryogenic liquids, ensuring long-term storage without frequent refilling.

Reliable Safety Performance

Robust Outer Casing: Constructed from high-quality stainless steel, the outer body withstands physical impacts and harsh industrial environments, ensuring structural integrity during transport and use.

Comprehensive Pressure Relief: Equipped with safety valves, rupture discs, and pressure building regulators to maintain stable internal pressure and prevent overpressure risks.

Leak-Proof Sealing: Advanced sealing system prevents external air and moisture ingress, preserving the purity of stored cryogenic liquids and avoiding contamination.

User-Centric Design

Portable & Easy Handling: Features wheels and handles for convenient movement, with a weight of 47.4kg that balances capacity and maneuverability.

Low Maintenance Requirement: Passive design (no external power needed) and durable construction minimize daily maintenance tasks, reducing operational costs.

Versatile Compatibility: Compatible with multiple cryogenic liquids, supporting diverse application needs across industries without equipment modification.

Cost-Effective Operation

Long Service Life: Stainless steel construction resists corrosion and wear, ensuring a prolonged service life even in demanding environments.

Reduced Refill Frequency: Low evaporation loss lowers the need for frequent refills, cutting down on liquid consumption and logistics costs over time.

| Application Fields

Scientific Research & Laboratories

Cryogenic Sample Preservation: Stores biological samples, cells, tissues, blood, and vaccines using LN2 vapor or liquid phase, supporting life science research and medical diagnostics.

Superconductivity Experiments: Provides cryogenic environments for superconducting magnets in NMR and MRI systems, as well as particle detectors in physics research.

Material Processing: Enables cryogenic treatment of metals and plastics to enhance wear resistance, and cryogenic grinding of heat-sensitive materials.

Detector Cooling: Cools semiconductor detectors in electron microscopes and spectrometers to improve sensitivity and signal-to-noise ratio.

Industrial Manufacturing

Metalworking & Welding: Supplies LO2 and LAr for metal cutting, welding, and as shielding gases; LN2 serves as an assist gas for laser cutting processes.

Chemical & Refining: Acts as an inert shielding gas for purging and blanketing in chemical reactions, preventing oxidation and ensuring process safety; suitable for LNG storage and transport.

Cryogenic Processing: Facilitates cryogenic grinding of rubber, plastics, and spices, and shrink-fit assembly of metal components via LN2-induced contraction.

Healthcare & Biotechnology

Reproductive Medicine: Supports long-term cryopreservation of sperm, eggs, and embryos, serving as core equipment for IVF clinics and gene banks.

Organ Transplantation: Enables cryogenic transport and storage of organs, skin, and bone tissues, extending preservation time for successful transplantation.

Cryosurgery: Stores LN2 for treating skin conditions (warts) and early-stage skin cancers by destroying abnormal tissue with extreme cold.

Medical Equipment Cooling: Provides continuous cooling for MRI scanners and other precision medical devices.

Food & Beverage Industry

Flash Freezing: Uses LN2 for rapid food freezing, preserving texture, nutrients, and freshness better than traditional freezing methods.

Beverage Chilling: Smaller dewars are used in bars and restaurants for long-lasting cooling of beer, wine, and specialty beverages; ideal for making liquid nitrogen ice cream in molecular gastronomy.