Industrial Self-pressurized Liquid Nitrogen Tank YDZ-800

| Product Overview

The YDZ-800 Self-Pressurized Liquid Nitrogen Tank is a heavy-duty cryogenic solution from Sichuan Zhonghuo Cryogenic Equipment Co., Ltd., designed for large-scale storage and continuous supply needs. Boasting an effective capacity of 800L (geometric volume 830L), this vertical tank features overall dimensions of 1310×1750MM, net weight of 335KG, and full weight of 990KG. Operating at a safe working pressure of ≤0.1Mpa, it delivers an ultra-low daily evaporation rate of 1.10% and a high liquid discharge flow rate of ≥15L/Min. Constructed with premium austenitic stainless steel and advanced high-vacuum insulation technology, the tank maintains a stable -196°C deep cryogenic environment, supporting long-term storage and transportation of large volumes of liquid nitrogen. It is compatible with optional remote monitoring systems, enabling seamless data transmission, alarm notifications, and remote operation for industrial-scale applications.

| Core Advantages

Industrial-Scale Capacity & Efficiency

With 800L effective capacity, the tank meets high-volume cryogenic storage demands for industrial production lines, large laboratories, and manufacturing facilities. The self-pressurization system—powered by vaporized liquid nitrogen—enables automatic, continuous liquid discharge, eliminating manual refilling and external pump dependencies for unmatched operational efficiency.

Exceptional Insulation Performance

The multi-layer high-vacuum insulation structure minimizes daily evaporation loss to just 1.10%, reducing operational costs and ensuring extended storage periods. The stainless steel inner and outer tanks provide superior corrosion resistance and structural integrity, withstanding heavy-duty industrial use.

Enhanced Mobility & Stability

Equipped with heavy-duty braking casters, the tank offers flexible movement across large workshops and industrial spaces while ensuring stable positioning during operation. The ergonomic armrest ring facilitates easy maneuvering, even with full load.

Reliable Safety & Customization

Integrated with high-precision HONGQI pressure gauges and certified safety valves, the tank ensures pressure control and overpressure protection. It supports customization with low-temperature voltage regulators, liquid level monitoring systems, and other accessories to adapt to specific industrial requirements.

| Application Fields

Large-Scale Biomedical Production

Ideal for pharmaceutical companies and biotech facilities requiring mass storage of vaccines, cell cultures, and biological reagents. The -196°C environment preserves the viability of large batches of biological materials, supporting scaled production and distribution.

Heavy-Duty Metal Processing

Used for deep cryogenic treatment of large metal components, alloys, and precision tools. Improves metallurgical structure to enhance hardness, strength, and wear resistance, extending the service life of industrial machinery and parts.

Agricultural & Livestock Breeding

Supports large-scale animal husbandry operations by enabling long-term preservation and transportation of semen from elite breeding stock. Facilitates artificial insemination programs for cattle, sheep, and rare animals, boosting breeding efficiency and genetic improvement.

Industrial & Aerospace Applications

Widely used in mold manufacturing, semiconductor fabrication, low-temperature chemical processing, aerospace component testing, and military applications. Serves as a stable cold source for industrial equipment like freeze dryers, cryogenic freezers, and low-temperature reaction vessels.

| Types of Products

| Operation & Safety Guidelines

Pre-Operation Checks

Tank Inspection: Thoroughly examine the shell for damage, ensure vacuum exhaust ports are intact, and confirm the interior is clean and free of debris.

Accessory Verification: Check lifting equipment, level gauges (if installed), and safety valves for proper functionality; ensure no deformation or damage.

Pre-Cooling Protocol: For new or idle tanks, add 1/10 of total capacity with liquid nitrogen for pre-cooling. Allow boiling to cease and liquid to stabilize before full filling to prevent thermal shock.

Safe Operation Procedures

Mandatory PPE: Wear cryogenic-resistant gloves, face shield, long-sleeved flame-retardant lab coat, and full-length pants to protect against cold burns.

Operate in well-ventilated areas—avoid confined spaces to prevent nitrogen gas accumulation and oxygen depletion.

Use industrial-grade transfer equipment to fill slowly along the inner wall, controlling flow to avoid splashing and thermal stress.

Fill to 80%-90% capacity to accommodate liquid expansion; never overfill to prevent pressure buildup.

Maintenance & Storage

Minimize lid opening time to ≤30 seconds when accessing samples or refilling, reducing nitrogen loss and temperature fluctuations.

Handle samples with dedicated lifting baskets to avoid collisions with the neck tube; allow residual liquid nitrogen to drip off before transferring.

Clean the exterior with a dry, lint-free cloth. For long-term shutdown, empty the tank, allow it to warm to room temperature, rinse the liner with 40-50°C water, and air dry completely.

Conduct monthly inspections of seals, valves, and gauges; log usage data and address any frost buildup or equipment malfunctions immediately.

| Production Process

The YDZ-800 is manufactured through a precision-engineered production process to meet industrial standards:

Cutting and welding of high-quality austenitic stainless steel to form large-capacity inner and outer tanks, ensuring structural integrity.

Assembly of multi-layer insulation materials and high-vacuum pumping to achieve optimal thermal insulation performance.

Installation of heavy-duty booster coils, safety valves, pressure gauges, and liquid level indicators for reliable operation.

Rigorous pressure testing and leak detection to comply with ≤0.1Mpa working pressure requirements and industrial safety standards.

Integration of heavy-duty braking casters, armrest rings, and vacuum covers for enhanced mobility and user safety.

Comprehensive quality control, including evaporation rate testing, flow rate verification, and functional checks of all systems.

Final inspection by certified engineers, ensuring compliance with international cryogenic equipment regulations and factory acceptance standards.

| FAQ

Is the YDZ-800 suitable for outdoor storage?

Yes, the tank can be stored outdoors in cool, dry, well-ventilated areas. Ensure it is protected from direct sunlight, extreme temperatures, and physical damage. Avoid placing it in confined spaces or areas prone to water accumulation.

How often should liquid nitrogen be replenished?

Replenishment frequency depends on usage and environmental conditions. With a 1.10% daily evaporation rate, the tank can maintain storage for extended periods. Monitor liquid levels regularly using a dipstick or optional monitoring system, and replenish when levels drop below 30% to avoid sample exposure.

What safety measures are in place to prevent overpressure?

The tank is equipped with certified safety valves that automatically release pressure if it exceeds the safe working limit (≤0.1Mpa). Additionally, the pressure gauge provides real-time pressure monitoring, and the optional remote system sends overpressure alarms to prevent hazards. Never seal the tank mouth, as this can cause pressure buildup.

| Call to Action

Upgrade your industrial cryogenic storage and supply system with the YDZ-800—now in stock with 10000 units available for immediate delivery. Whether for large-scale production, heavy-duty processing, or bulk biological storage, this tank delivers reliability and efficiency. Contact us today for a personalized quote, technical consultation, or to add to your basket. Our team of cryogenic experts is ready to provide tailored solutions to meet your industrial needs!