Cylinder Industrial GasesAll gas cylinders supplied by Linde are labeled in accordance with federal regulations, and valved in accordance with the American National Standards Institute Standard B-57.1 and CGA V-1 Publication for Valve Connections.

Individual gases typically are available as industrial grade. Many mixtures of these gases are also available and often standard mixtures are supplied for specific processing results. Industrial, by definition, is acceptable for wide ranging applications - from welding to food packaging. The most common form of delivery is in low or high pressure cylinders.

 All gas cylinders supplied by Linde are labeled in accordance with federal regulations, and valved in accordance with the American National Standards Institute Standard B-57.1 and CGA V-1 Publication for Valve Connections.

Product Information

Flame Process Gases
Oxy-Fuel Gas Processes

ODOROX® Odourized Oxygen is the early warning system that works with your nose. ODOROX odourized oxygen has a clearly detectable smell to warn of potential leaks and dangerous accumulations of gas. The beauty of the ODOROX concept lies in its simplicity: if you can smell it, something is wrong. ODOROX odourized oxygen contains small amounts of Dimethyl Sulfide (DMS) which, with its highly distinctive smell, will alert you when the oxygen concentration rises as little as 1% (i.e. from 21% to 22% oxygen in air).

ODOROX odourized oxygen significantly enhances safety and complements existing safe practice in all oxy-fuel applications. It is intended for use in any industrial application where oxy-fuel would normally be used and is available in cylinders and for odourizing supply systems. The addition of small amounts of DMS in no way affects the performance, behaviour or shelf life of the oxygen. Instead, it unmistakably warns you if there is an oxygen leak so you can immediately take appropriate action.

Food Preserving Atmospheres
Modified Atmosphere Packaging

Linde supplies Modified Atmosphere Packaging (MAP) gases for use in food preservation and packaging. MAP is a method for extending product shelf life, preserving the high quality of foodstuffs, and improving overall cost-effectiveness. Our MAPAX® family of gas mixtures can do all of this for the food packaging company.

The gases used most often are carbon dioxide (CO2), nitrogen (N2) and oxygen (O2). The gas or gas mixture used depends greatly on the foodstuffs involved along with ambient and packaging parameters. Gases can be supplied either premixed in cylinders under high pressure or as separate gases for subsequent mixing in the packaging machine.

Balloon Gas
Helium & Helium/Hydrogen Mixtures

Helium filled balloons add color, enjoyment, amusement and entertainment to parties and other festive events. This gas is available at our retail store outlets along with inflator connections.

Helium/hydrogen mixtures are also supplied for outdoor display and weather balloons.

Laser Gases for Welding & Cutting
Composition of Laser Gases

Gas lasers need laser gases in order to generate the laser beam. The laser gas mixture required to run a CO2 laser contains 60-85% helium, 13-55% nitrogen and 1-9% carbon dioxide. The exact composition varies depending on the type of laser and the manufacturer. Some laser types also require small additions of other gases such as oxygen, hydrogen or xenon. The TEA laser gas mixture, on the other hand, often contains a small percentage of CO. CO is toxic and aggressive, requiring additional safety devices in the gas supply system.

The laser gas needed for an Excimer laser consists of 0.05-0.3% halogen (fluorine or hydrogen chloride), 1-10% rare gas (krypton, xenon or argon) and 90-99% buffer gas (helium or neon). For safety reasons, the halogen is always diluted with helium or neon.

Purity of Laser Gases

Today, laser manufacturers demand relatively high-purity laser gases. Impurities in the laser gas impede the laser performance by lowering the output power, disturbing the uniformity of the electrical discharge and requiring frequent service and maintenance for the laser optics. The most harmful impurities have been identified as water vapor and hydrocarbons.

Impurities in the laser gas, however, come not only from the gas cylinders themselves but can also be introduced via a poorly designed and set-up gas distribution system. Selection of appropriate components for the gas supply system and expert installation are therefore crucial for reliable and satisfactory laser operations.

Delivery of Laser Gases
Most of the CO2 laser gases are delivered in separate gas cylinders and mixed within the laser. Sometimes, the CO2 laser gases and most of the TEA laser gases are ordered premixed. The Excimer laser gases are supplied in separate cylinders for industrial applications. For medical Excimer lasers, on the other hand, the laser gases are most often supplied premixed in a single cylinder.
Shielding Gases for Welding
About Shielding Gases for Welding

The potential of a welding process can only be fully utilized if the shielding gas is properly suited for the job. Our knowledge of how this tool works is our active contribution to obtaining the best overall value for your welding process.

The welding process can be influenced in a number of ways with the aid of shielding gases. It can be optimized for material, thickness, welding position, and many other factors. The gas or gas mixture must be selected according to the required effects on the welding process.

Physical and Chemical Properties Make a Big Difference
Physical gas properties affect metal transfer, wetting behavior, depth of penetration, shape of penetration, travel speed, and arc starting. For example, gases with low ionization energy (e.g. Argon) facilitate arc starting and arc stabilization. Gases with a high dissociation energy (e.g. CO2) enhance the heat input to the base material. Thermal conductivity of the shielding gas influences weld geometry, weld-pool temperature, and travel speeds. Chemical properties influence both the metallurgical behavior and the weld surface quality.
The Right Shielding Gas for Every Welding Process
Linde features both MISON® and ARCLINE™ brands of shielding gases for GMAW, GTAW, and PAW.
The MISON Family of Shielding Gases

The MISON family of welding shielding gases. The right mixture for each application. MISON is not just one gas, but a range. Each mixture in that range has been developed for a specific type of welding applications or group of applications to bring you the very best. So whatever your base metal, filler metal or method, you can select from the MISON range to optimize the welding result - higher deposition rates, improved weld characteristics and the right weld quality and appearance.

MISON shielding gases contain a small concentration of nitric oxide which reacts with ozone generated around the weld, reducing it at its source. Production usage has realized several other benefits:

  • Superior arc starts

  • Lower spatter

  • Increase welding speed

Seeing is believing. Contact your local Linde gas representative for an on-site demonstration. Once you have seen it, you'll believe in the MISON line of shielding gases.

Thermal Spray Gases
About Thermal Spraying
Thermal spraying has become increasingly important, both in the manufacturing of new parts and in the repair of existing parts. Thermal spraying covers a wide range of spray coating processes. They are classified according to the type of spray material, type of operation and type of energy source. It is essential to use the correct gas(es) for the energy source being utilized.
Why Use Thermal Spray?
  • :: Any material can be a coating

  • :: Coatings are not thermally altered

  • :: Parts of any size, any geometry can be coated

  • :: Can / should be automated

  • :: Highly reproducible

  • :: Dimensionally accurate

Distribution Methods
About Distribution Methods
Many times you need a small amount of gas in a specific place within your facility. Or you need to take gases with you such as for repairs or maintenance. Most gases can be pressurized into cylinders to meet these types of requirements. Special containers are also available to hold liquified gases for cryogenic use. We have specially designed delivery trucks for all of these vessels and our rigid maintenance checks make sure that breakdowns don't cause late deliveries.
Cylinders come in many sizes and use different materials of construction depending on the gas and purity requirements. The internal gas pressure varies by type and rating of the cylinder. In order to safely draw product from a cylinder a regulator is required. This is threaded into the open/close valve in the top of the cylinder and is then used to set a reduced pressure for flow as required. Typically, cylinder capacities range from 10 to 350 cubic feet (CF) of gas product.
Cylinder Banks
Banks are either 6 or 12 gas cylinders of the same size and product. The cylinders share a common manifold so that one regulator and line can be used to draw from all of the cylinders. Banks may be skid mounted or come on wheels. Product capacity is in the range of 3000 to 4000 CF of product.
Dewars, Liquid Cans
Dewars, liquid cans or LGs have a footprint roughly the size of a 55-gallon drum, but are taller. They contain liquid gas which can be drawn from the container as either a liquid or as a gas. Capacity varies by product from 3,000 to 5,000 CF.
Pallet Tanks
These are small cryogenic tanks built into a self-contained, palletized system. They can be used for oxygen, nitrogen, argon and carbon dioxide. Tare weights are roughly 1300 lbs with product capacities ranging from 8,300 to 13,000 CF depending on the gas.