Inert gas blanketing, also known as ‘tank blanketing,’ is a technique that can be used to prevent spoilage in oxygen-sensitive products such as food, oils and intermediate products, and to avoid reaching explosive and flammable conditions in a container or process area.

Inert gas blanketing controls oxygen levels through the use of inert gas. The level of oxygen in the container’s headspace is measured and when certain conditions are met, the air surrounding a particular substance being processed is displaced by using inert gas to blanket the vapor space of its container.

At Bacharach, our goal is to help you meet your toughest challenges by working closely with you enabling us to better understand your oxygen analysis and inert gas blanketing needs – and offer services and solutions that will help you manage risks to your personnel, plant and the environment.

Through our collaborative environment and engineering bench strength, we deliver customer-focused support that is built on our passion for continuous improvement and excellence in quality and manufacturing. Our services range from on-site training, troubleshooting, and maintenance to engineering and technical support from start to finish — during project design, installation, start-up, and ongoing operation. All are provided with the focus on helping you increase plant productivity, improve process safety, enhance product quality, ensure long equipment life, and reduce costs.


Every engineered solution begins with a thorough analysis of your application parameters — including an evaluation of the measurement and control tasks required and the environment in which the monitoring will take place. The Bacharach Gas Analysis team has the resources to engineer, fabricate and test complete system solutions. Oxygen monitoring systems may include specialized subsystems for process gas sampling and sample conditioning. Pre-conditioning components are available for a broad range of process variables and can be built to withstand many corrosive and dynamic process environments. Systems can be configured to include self-diagnostic and automatic calibration capabilities as well as user configurable alarm/intervention features.


With installation support and start-up & commissioning services by a the Bacharach Gas Analysis certified technician, you’ll have your system or process up and running smoothly and on schedule. During the installation planning period, our the Bacharach Gas Analysis field service engineers are available to answer questions about the system design and provide guidance and support for the installation and integration. To ensure that the analyzer system operates as designed, we provide on-site training in system operation, maintenance, troubleshooting, and safety. This hands-on training gives your service techs a thorough understanding of the system design and operation. Our goal is to help you maximize production time and minimize maintenance costs.


A successful start-up isn’t the end of our commitment. We provide ongoing field evaluation, troubleshooting, and application engineering services along with preventative maintenance, 24-hour emergency service, and refresher training for your plant personnel. Other on-site services include equipment inspection, cleaning, and calibration by the Bacharach Gas Analysis field service technicians. Building on your specific application, we can work together to create customized periodic service and maintenance procedures and schedules for your oxygen monitoring system.


Bacharach’s Gas Analysis team provides quick and easy access to replacement service parts and supplies for your oxygen monitoring system. We maintain a well-stocked inventory of major components and spare parts to meet the needs of virtually all application requirements.



When the need arises, the Bacharach Gas Analysis team can engineer and help you implement system upgrades, incorporating the latest hardware and software improvements to enhance or expand the capabilities of your equipment. With the same user-intimate approach that we foster for any of our engineered solutions, we will work with you to design an upgrade program that fits your unique needs.


Displacing the air eliminates the presence of oxygen (air is made up of 20.9% oxygen) that could be in contact with the vapor phase of the substance being blanketed, and also displaces moisture, which could cause spoilage through hydrolytic oxidation. Additionally, by eliminating or decreasing oxygen to a level that cannot support combustion, the risks of flammability are virtually eliminated. Unlike fire suppression or explosion venting systems that operate after the fact, inerting safely protects workers and equipment by preventing combustion before it happens.

So, if you are a process engineer looking for a solution to improve your product quality or a health and safety officer looking to reduce the risk of hazardous, flammable processes, this document will help you:

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