Lab-Grade Self-pressurized Liquid Nitrogen Tank YDZ-100

| Product Overview

The YDZ-100 Self-Pressurized Liquid Nitrogen Tank is a premium cryogenic equipment engineered by Sichuan Zhonghuo Cryogenic Equipment Co., Ltd. With an effective capacity of 100L and geometric volume of 110L, this vertical tank boasts overall dimensions of 606×1180MM, net weight of 69KG, and full weight of 150KG. Operating at a maximum pressure of ≤0.1Mpa, it features an ultra-low daily evaporation rate of 1.30% and a reliable liquid discharge flow rate of ≥6L/Min. Crafted with high-quality austenitic stainless steel inner and outer tanks, paired with a high-vacuum insulation structure, the tank integrates storage and transportation functions, making it a versatile solution for maintaining the deep low-temperature environment of -196°C required for various materials and samples. It can be optionally equipped with a liquid nitrogen tank monitoring terminal and supporting software, enabling remote data transmission, alarm, and control.

| Core Advantages

Integrated Storage & Transportation Efficiency

Eliminates the need for manual pouring or external pumps through an internal self-pressurization system—vaporizing a small amount of liquid nitrogen to generate pressure for automatic discharge. This allows single-person operation, drastically reducing labor costs and improving workflow efficiency in laboratory and industrial settings.

Superior Insulation & Durability

The high-vacuum insulation layer combined with stainless steel construction minimizes daily liquid nitrogen evaporation loss, extending the storage duration of cryogenic media. The robust structure resists corrosion and physical impact, ensuring long-term reliable performance even in harsh operating conditions.

Flexible Mobility & Customization

Equipped with braking casters at the bottom, the tank can be easily moved within laboratories, workshops, or production lines. It supports optional configurations such as low-temperature voltage regulators and level gauges, adapting to diverse application requirements from small-scale labs to mid-sized industrial operations.

Intelligent Monitoring Capability

Optional remote monitoring systems enable real-time tracking of liquid level, pressure, and other key parameters. Low liquid level and overpressure remote alarms, along with manual remote pressurization and liquid replenishment control, enhance operational safety and convenience.

| Types of Products

| Application Fields

Biomedical & Life Sciences

Ideal for long-term preservation of biological samples including vaccines, cells, bacteria, viruses, animal organs, human stem cells, blood, and skin. The -196°C deep cryogenic environment maintains biological activity, supporting research, clinical trials, and regenerative medicine advancements.

Animal Husbandry & Breeding

Facilitates long-term active preservation and long-distance transportation of semen from valuable breeding stock (cattle, sheep) and rare animals. Provides critical technical support for artificial insemination programs, improving breeding efficiency and genetic quality.

Metal Manufacturing & Precision Machining

Used for deep cryogenic treatment of metal materials to optimize metallurgical structure, significantly enhancing hardness, strength, and wear resistance. Precision parts undergo controlled dimensional changes after treatment, enabling interference fit assembly and boosting final product performance.

Multidisciplinary Industrial Applications

Widely adopted in mold industry, semiconductor manufacturing, food processing, low-temperature chemical industry, aerospace, and military sectors. Serves as a stable cold source for equipment like freeze dryers and supports low-temperature process requirements.

| Operation & Safety Guidelines

Pre-Operation Preparation

Tank Inspection: Check for shell dents, cracks, and intact vacuum exhaust ports. Ensure the interior is clean, dry, and free of foreign objects.

Accessory Check: Verify lifting baskets and canes are undamaged; confirm level gauge markings (if equipped) are clear.

Pre-Cooling: For new or long-unused tanks, inject 1/10 of total capacity with liquid nitrogen to pre-cool. Fill fully only after boiling subsides and liquid stabilizes.

Safe Filling Procedures

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

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

Use a dedicated funnel/transfer tube to pour slowly along the inner wall, controlling flow to prevent splashing.

Fill to 80%-90% of total capacity—never exceed to allow space for liquid expansion and gas evaporation.

Sample Access & Maintenance

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

Use baskets to lift/lower samples steadily; avoid 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, warm to room temperature, rinse the liner with 40-50°C 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-100 undergoes a rigorous manufacturing process to ensure cryogenic performance and safety. Key steps include:

High-precision cutting and forming of austenitic stainless steel for inner and outer tanks.

Multi-layer insulation layer assembly and high-vacuum pumping to achieve optimal thermal insulation.

Installation of booster coils, safety valves, pressure gauges (HONGQI brand, certified for accuracy), and vent valves.

Pressure testing and leak detection to meet ≤0.1Mpa working pressure standards.

Assembly of braking casters, armrest rings, and vacuum covers for user-friendly operation.

Final quality inspection, including evaporation rate testing and functional verification of all components.

Factory acceptance by professional engineers and compliance with international cryogenic equipment standards.

| FAQ

Will the YDZ-100 Liquid Nitrogen Tank explode?

Liquid nitrogen is non-flammable and non-explosive. Rupture risk exists only if the tank is hermetically sealed or the pressure relief valve fails—vaporized liquid nitrogen expands 700x in volume, causing pressure buildup. Always use certified containers with functional pressure relief devices and never seal the tank mouth.

What are the hazards of contact, and how to protect against them?

Liquid nitrogen’s -196°C temperature causes severe cold burns/frostbite on skin contact. Always wear full PPE: cryogenic gloves, safety goggles/face shield, long-sleeved lab coat, and ankle-covering pants. Avoid direct skin or eye exposure to liquid or cold vapor.

How to monitor liquid levels effectively?

Regularly check levels using a dipstick or weighing method. For enhanced convenience, opt for the optional monitoring terminal to receive real-time liquid level data and low-level remote alarms. Replenish liquid nitrogen when levels drop below 30% or before samples are exposed.

| Call to Action

Ready to elevate your cryogenic storage and supply capabilities with the YDZ-100? With 10000 units in stock, we offer fast delivery and professional technical support. Inquire now for customized quotes or add to your basket to secure your tank. For bulk orders or technical consultations, contact our team—we’re dedicated to providing tailored cryogenic solutions for your industry needs!