Large-Capacity 1000L Cryogenic Dewar Flask

| Product Overview

The 1000L Dewar Flask is a high-performance low-temperature thermal insulating pressure vessel, engineered for the storage and transportation of various cryogenic liquids including liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, and liquefied natural gas. Adopting a double-layer vacuum stainless steel structure, its inner tank is dedicated to holding cryogenic media, while the outer wall is wrapped with multi-layer thermal insulation materials. The sandwich layer between the two containers is pumped into a high vacuum, forming a super thermal insulation system that ensures minimal evaporation loss. Available in two models, DPL-1000H (2.3 Mpa working pressure) and DPL-1000X (3.17 Mpa working pressure), this dewar flask features a geometric volume of 1000L and an effective volume of 950L, capable of meeting large-scale industrial and scientific research demands. It can automatically supply gas continuously, and for scenarios requiring larger gas flow rates, it can be connected in parallel with multiple cylinders or matched with an external vaporizer.

| Core Advantages

Superior Thermal Insulation Performance

The combination of high vacuum technology and multi-layer insulation materials realizes extremely low heat transfer, significantly reducing the evaporation loss of cryogenic liquids and maximizing the utilization rate of stored media.

Long-term Stable Storage Capacity

With an ultra-low daily evaporation rate, the 1000L Dewar Flask allows cryogenic liquids to be stored for extended periods without frequent refilling, which is particularly suitable for remote areas or intermittent use scenarios.

High Safety and Reliability

Equipped with a robust outer casing and comprehensive pressure relief devices such as safety valves, it ensures safe operation and transportation. The high-quality manufacturing process meets strict industry standards, minimizing potential risks.

Strong Versatility and Durability

Made of premium stainless steel, it can withstand harsh industrial environments and physical impacts, boasting a long service life. It is compatible with multiple cryogenic liquids, covering a wide range of application needs.

| Application Fields

Scientific Research and Laboratories

It provides a stable cryogenic environment for cryogenic sample storage (cells, strains, tissues, vaccines), superconductivity and physics experiments (NMR, MRI superconducting magnets), material cryogenic treatment, and detector cooling (electron microscope semiconductor detectors).

Industry and Manufacturing

Applied in metalworking and welding as a source of shielding gases like liquid oxygen and liquid argon; used in chemical and refining industries for inert gas purging and LNG storage; and serves as a core device for cryogenic grinding and shrink-fit assembly processes.

Healthcare and Biotechnology

Essential for the long-term cryopreservation of sperm, eggs, and embryos in reproductive medicine, as well as the cryogenic transport and storage of transplant organs and tissues. It also supports cryosurgery and medical equipment cooling.

Food and Beverage Industry

Facilitates food flash freezing and preservation to retain texture and nutrients, beverage chilling in bars and restaurants, and wine rapid chilling with stylish decanter-shaped small dewars.

| Operation & Safety Guidelines

Operation Precautions

Short-distance movement requires a special trolley, and the dewar flask must be fixed firmly to keep it upright.

When going up and down stairs, two people are required to operate with a dedicated carrying rack; dumping, rolling or horizontal placement is strictly prohibited.

Regularly clean the outer wall to prevent dust from blocking exhaust pores, and always cover the bottle cap even when empty to avoid impurity and moisture entry.

Safety Protection

Prevent frostbite: Wear professional antifreeze gloves and goggles to avoid direct contact with low-temperature liquids or metal surfaces.

Prevent suffocation: Operate in well-ventilated areas, as evaporated nitrogen will displace oxygen, leading to hypoxia risks in confined spaces.

| Production Process

The production of the 1000L Dewar Flask follows strict quality control standards. First, high-quality stainless steel materials are selected for cutting and forming to manufacture the inner tank and outer shell. Then, the multi-layer thermal insulation materials are wrapped on the outer wall of the inner tank, and the sandwich layer is assembled and welded. Next, the vacuum pumping process is carried out to create a high-vacuum environment inside the sandwich layer. After that, pressure relief devices such as safety valves and pressure gauges are installed, and rigorous pressure testing and thermal insulation performance testing are conducted. Finally, the qualified products are labeled and packaged for delivery.

| FAQ

Is it normal for the outer wall of the dewar flask to frost?

Slight frosting near the neck tube or at the bottom of newly filled dewars or in high-humidity environments is normal. However, severe and uniform frosting on the entire bottle, especially the upper half, indicates vacuum failure, and use should be stopped immediately and the supplier contacted.

Will the 1000L Dewar Flask explode during use?

With proper operation and regular maintenance, the dewar flask is extremely safe, as its pressure relief system can effectively release excess pressure in a timely manner.

| Call to Action

Are you looking for a high-efficiency, large-capacity cryogenic liquid storage solution? The 1000L Dewar Flask is your ideal choice! It combines excellent thermal insulation, long service life, and strong versatility to meet the diverse needs of scientific research, industry, and medical care. Contact us now to inquire about detailed specifications and pricing, and add this reliable product to your basket!