Helium He - B20
A Helium B20 gas cylinder is an industrial cylinder with a water capacity of 20 liters, filled with compressed helium gas under high pressure. Just like the smaller B10 variant, the helium in this cylinder is an inert noble gas, meaning it is chemically stable and does not react with other substances or materials.
Due to helium's stability, this larger size also requires no porous mass or solvents. The gas is stored directly in the cylinder under high pressure (standard 200 bar). With its larger capacity, the B20 cylinder offers a significantly greater gas supply (approx. 4 m³), making it the ideal balance between mobility and longer usage time for professional applications such as large-scale balloon decoration, long-duration TIG welding, or intensive leak detection.
Here is the English translation:
These are the primary areas of application:
1. Large-scale Balloon Decorations For professional balloon artists or event organizers, the B20 is the standard.
- Why: With 4 m³ of helium, you can fill hundreds of latex or foil balloons. Because you don't have to change cylinders as often, you work more efficiently and save on logistics costs (less transport of empty/full cylinders).
2. Industrial Welding (TIG Welding) In metalworking, helium is used as a shielding gas for TIG welding, often in a mixture with Argon.
- Why: Helium increases the energy output of the welding arc. This results in a hotter arc, which is essential for welding thicker materials or metals with high thermal conductivity (such as copper or thick aluminum). The B20 provides sufficient supply for longer welding runs.
3. Professional Leak Detection (Vacuum Technology) In the chemical industry, refrigeration, and vacuum system maintenance, helium is used as a 'tracer gas.'
- Why: Because helium atoms are extremely small, they leak through holes that are invisible to other gases or liquids. A B20 cylinder is ideal for technicians who need to walk through and test large installations for leaks.
4. Laboratory Research & Analytical Chemistry
- Gas Chromatography: Helium serves here as a 'carrier gas.' It carries the sample to be analyzed through the device's column. Because it is inert, it does not react with the sample, which guarantees pure results.
- Cooling: In laboratories, helium is sometimes used for cooling systems that require extremely low temperatures.
5. Aviation and Meteorology
- Weather Balloons: To launch meteorological measuring equipment, a B20 or larger cylinder is often used to fill the balloon quickly and efficiently with an exact amount of helium for a controlled ascent.
Product details
Helium (He) gas cylinder, filled with 20L of He, as balloon gas (made for long-term and professional use).
Transport
Key guidelines for safe transport
1. Preparation: The "Three Golden Rules"
- Valve closed and regulator off: Close the main valve completely, bleed the hose, and remove the pressure regulator entirely for transport.
- Protective cap: Always screw the protective cap (valve cover) firmly onto the cylinder. This protects the valve in the event of a fall.
- Inspection: Check that the valve is leak-free and that there is no grease or oil on the connection (critical for safety).
2. Loading and Securing
- Always upright: Ideally, transport the cylinder in a vertical position. Use a special cylinder rack or a sturdy hand truck secured in the vehicle.
- Fixation is crucial: A filled B20 cylinder is heavy. During an emergency stop or a turn, it can fly through the cargo area with enormous force. Secure the cylinder with certified tension straps to lashing points in the cargo area.
- Not on the passenger seat: Never transport gas cylinders on a seat in the cabin. In a collision, the cylinder becomes a dangerous projectile.
3. Vehicle Ventilation
- Fresh air: The greatest danger when transporting helium is asphyxiation from a leak in an enclosed space. Ensure continuous ventilation in the cargo area (e.g., ventilation grilles or a slightly open window in a small van).
- Do not leave unattended: Never leave the cylinder in a sealed vehicle, especially in the sun. Heating increases the pressure in the cylinder, unnecessarily stressing safety features.
4. Legal framework (ADR)
- Private: If you are transporting one or two cylinders for private use, you are usually exempt from heavy ADR obligations for dangerous goods (the 'private transport exemption').
- Commercial: If you use the cylinder for work (e.g., as a decorator or technician), ADR legislation applies. This means your vehicle must meet specific safety requirements, such as carrying a fire extinguisher (min. 2kg) and the driver must know basic hazardous materials instructions.
Information
Safety
Here are the crucial safety rules for working with a B20 cylinder:
1. Risk of Asphyxiation
- Oxygen displacement: Helium is not toxic, but it is an asphyxiant gas. If a B20 cylinder leaks in a small, enclosed space (such as a basement, a small van, or a closed storage room), it displaces the available oxygen.
- Consequence: You will not notice this (it has no odor or color), but it can lead to unconsciousness or worse. Therefore, ventilation is always required.
2. Risk from High Pressure (200 bar)
- Projectile hazard: A B20 cylinder is under enormous pressure. If the valve breaks off due to a fall or impact, the force of the escaping gas can propel the cylinder like a projectile through a wall or vehicle.
- Rule: Always wear the protective cap when the cylinder is not in use.
- Maintenance: Use only pressure regulators suitable for the pressure and connection of a 200 bar Helium cylinder.
3. Safe Handling (Operation)
- Cold hazard: When opening the valve quickly, the pressure regulator or coupling can cool down extremely rapidly due to the Joule-Thomson effect (rapid gas expansion). Do not touch metal parts with bare hands during or immediately after use to prevent frostbite.
- No grease or oil: Never use oil, grease, or lubricants on the connections. Although Helium is inert, this is the standard safety procedure for all gas cylinders to prevent valve contamination.
- Slow opening: Always open the main valve very carefully and slowly to avoid "pressure shocks" in the regulator.
4. Storage and Stability
- Vertical storage: Always store cylinders upright. A B20 cylinder is relatively narrow and can easily tip over.
- Securing: Always secure the cylinder to a wall, in a cylinder rack, or with a chain. For mobile use, always use a hand truck equipped with a chain or safety strap.
- Temperature: Avoid storage in direct sunlight or near heat sources. The pressure in the cylinder increases as the temperature rises.
5. Transport (Checklist for vehicles)
- Ventilation: Ensure that the area where the cylinder is located is always connected to the outside air (e.g., via ventilation grilles).
- Fixation: The cylinder must be immovable. An unsecured B20 cylinder flying through the cargo area during an emergency stop is life-threatening.
- No pressure regulator: Never transport the cylinder with the pressure regulator still attached. The regulator protrudes and is the weakest point; this is the most common cause of leaks during transport.