Self-pressurized Liquid Nitrogen Tank YDZ-150

| Product Overview

The YDZ-150 Self-Pressurized Liquid Nitrogen Tank is a premium cryogenic equipment engineered by Zhonghuo, designed for large-scale storage, transportation, and automated liquid nitrogen supply. With an effective capacity of 150L and a geometric volume of 160L, this tank boasts overall dimensions of 706×1200MM, a net weight of 88KG, and a full weight of 208KG. Operating at a maximum pressure of ≤0.1Mpa, it features an ultra-low daily evaporation rate of only 1.20% and a high flow rate of ≥8L/Min, ensuring efficient and reliable cryogenic performance. Crafted with high-quality austenitic stainless steel for both inner and outer tanks, paired with a high-vacuum insulation structure, the YDZ-150 maintains a stable -196°C deep low-temperature environment, making it ideal for industrial production lines, large laboratories, and bulk storage needs across multiple sectors.

| Core Advantages

Integrated Storage & Transport Efficiency

The tank integrates storage and transport functions seamlessly, eliminating the need for separate equipment. Its internal self-pressurization system vaporizes a small amount of liquid nitrogen to generate pressure, enabling automatic liquid discharge without manual pouring or external pumps. This allows single-person operation, drastically reducing labor costs and boosting workflow efficiency.

Superior Insulation & Durability

Equipped with a high-vacuum insulation structure, the YDZ-150 minimizes daily liquid nitrogen evaporation loss, extending the storage duration significantly. The use of high-quality austenitic stainless steel ensures corrosion resistance, impact resistance, and long service life, even in harsh industrial environments.

Flexible Mobility & Smart Monitoring

Braking casters at the bottom facilitate easy and stable movement within factories, laboratories, or warehouses. The tank can be equipped with a liquid nitrogen tank monitoring terminal and professional software, supporting remote transmission of liquid level, pressure, and other key data. It also enables remote alarms for low liquid levels and overpressure, as well as manual remote pressurization and liquid replenishment control, enhancing operational convenience and safety.

Wide Capacity Adaptability

As part of the YDZ series, the 150L model complements a full range of capacities from 15L to over 1000L (vertical and horizontal options), meeting diverse demands from small-scale experiments to large-scale industrial production.

| Types of Products

| Application Fields

Biomedical & Pharmaceutical Industry

Ideal for long-term preservation of biological samples such as vaccines, cells, bacteria, viruses, animal organs, human stem cells, blood, and skin. The -196°C deep cryogenic environment maintains biological activity for extended periods, supporting medical research, drug development, and clinical applications.

Metal Manufacturing & Precision Machining

Used for deep cryogenic treatment of metal materials, improving metallurgical structure to enhance hardness, strength, and wear resistance. Precision parts undergo minimal dimensional changes after treatment, facilitating interference fit assembly and optimizing final product performance.

Animal Husbandry & Breeding

Enables long-term active preservation and long-distance transport of semen from valuable breeding stock (cattle, sheep) and rare animals, providing critical technical support for artificial insemination and genetic improvement programs.

Multiple Industrial Sectors

Widely applied in mold industry, semiconductor manufacturing, food processing, low-temperature chemical industry, aerospace, and military fields, serving as a stable cold source for production processes and equipment.

| Operation & Safety Guidelines

Pre-Operation Preparation

Tank Inspection: Check for dents or cracks on the shell, ensure the vacuum exhaust port is intact, and verify the interior is clean, dry, and free of foreign objects.

Accessory Check: Confirm lifting baskets and canes are undamaged, and level gauge markings (if equipped) are clear.

Pre-Cooling: For new or long-unused tanks, inject 1/10 of the total capacity of liquid nitrogen slowly for pre-cooling. Wait until boiling subsides and liquid stabilizes before full filling.

Safe Filling Procedures

Wear cryogenic-resistant gloves (cotton gloves prohibited), safety goggles/face shield, and a long-sleeved lab coat with ankle-covering pants.

Operate in a well-ventilated area to avoid oxygen deficiency from nitrogen gas accumulation.

Use a dedicated funnel or transfer tube to inject liquid nitrogen slowly along the inner wall, controlling flow rate to prevent splashing.

Do not fill beyond 80%-90% of total capacity to leave space for liquid expansion and gas evaporation.

Sample Access & Daily Maintenance

Keep the lid open for ≤30 seconds per access to minimize nitrogen loss and temperature rise.

Use baskets to lift/lower samples steadily, avoiding collisions with the neck tube. Allow residual liquid nitrogen to drip off after removal.

Wipe the exterior with a dry, soft cloth. For long-term storage, empty the tank, let it warm to room temperature, rinse the inner liner with 40-50°C warm water, and air dry completely.

Conduct monthly inspections of neck plug seals and accessories; log nitrogen usage and address outer shell frost promptly.

| Production Process

The YDZ-150 undergoes strict manufacturing procedures, starting with high-quality austenitic stainless steel selection for inner and outer tanks. Precision cutting and welding ensure structural integrity, followed by multi-layer insulation wrapping and high-vacuum processing to optimize thermal insulation performance. Key components such as pressure gauges (from Hongqi Instrument Co., Ltd.) and safety valves are installed and calibrated to meet ≤0.1Mpa working pressure standards. Each tank undergoes rigorous quality testing, including pressure resistance, vacuum tightness, and evaporation rate checks, to ensure compliance with ISO9001:2015 and GB/T19001-2016 standards. The production process is supervised by professional engineers, with on-site inspections from industry experts (e.g., Professor Andreyev from the Russian Academy of Sciences’ Institute of Biological Cells) to guarantee product reliability.

| FAQ

Can the YDZ-150 liquid nitrogen tank explode?

Liquid nitrogen is non-flammable and non-explosive. However, if the tank is hermetically sealed or the pressure relief valve fails, vaporized liquid nitrogen expands 700 times its original volume, causing pressure buildup and potential rupture. Always use certified containers with functional pressure relief devices and never seal the tank mouth.

What are the risks of liquid nitrogen contact, and how to protect against them?

Liquid nitrogen’s -196°C temperature can cause severe cold burns or frostbite on skin contact. Always wear appropriate PPE: cryogenic gloves, safety goggles/face shield, long-sleeved lab coat, and ankle-covering pants.

How to monitor liquid level and pressure remotely?

The tank can be equipped with a dedicated liquid nitrogen tank monitoring terminal and software, enabling real-time remote transmission of liquid level, pressure data, low liquid level/overpressure alarms, and remote control of pressurization and liquid replenishment.

| Call to Action

Ready to elevate your cryogenic storage and transport capabilities with the high-capacity, efficient YDZ-150 Self-Pressurized Liquid Nitrogen Tank? With 10000 units in stock, we offer fast delivery and professional technical support. Whether for industrial production, biomedical research, or animal husbandry, this tank delivers reliable performance you can trust. Inquire now for a customized quote or add to your basket to secure your order. Contact our team for more details on installation, maintenance, and monitoring system upgrades—invest in the YDZ-150 for seamless cryogenic solutions!