Gas cabinet

A gas cabinet is a metallic enclosure which is used to provide local exhaust ventilation system for virtually all of the gases used or generated in the Semiconductor, Solar, MEMS, NANO, Solar PV, Manufacturing and other advanced technologies.

The primary purpose of gas cabinets is to contain potential leaks in piping and fittings at the cylinder connection. The cabinet must be exhausted by a specifically designed fan and exhaust system. The cabinet exhaust system draws leaking hazardous gasses out of the cabinet. In the case of a flammable gas the cabinet will contain the flame for a period of time. One can use a newly reconditioned cabinet as well as non-reconditioned used gas cabinets depending on their requirements.

There are a variety of gas cabinets available in the market in different gas cylinder configurations, such as 1, 2 and 3 bottle designs. They can be either new, used, or reconditioned. A gas cylinder cabinet can have many features depending on the specific gas. These features include gas sensor, sprinkler head, excess flow sensor, automatic operation with automatic purging and excess pressure sensor.

They should meet the Uniform Fire Code Specifications and the National Fire Protection Association. They need to adhere to the Compressed Gas Association and Semiconductor Equipment & Materials Institute codes. It is also important to know whether the cabinet is OSHA compliant. OSHA offers additional safety precautions involving the use of gas cabinets. In the absence of finite specifications or unknowns the user or designer should seek the assistance of an impartial consultant.

Reconditioned gas cabinets can be more useful than non-reconditioned used gas cabinets because of the thorough process used in professionally reconditioning and testing to ensure all systems meet manufacturer’s specifications. Different types of gas cabinets can be used, depending on the gas type in the cylinder. Automatic gas cabinets with multiple sensors are useful and fulfill many other requirements.

A gas cabinet can also be manufactured specifically for a company's needs and at lower cost. It is required that a gas cabinet is used for fire safety for gas cylinders. The requirements vary by state. Many states have no advanced regulations for hazardous industrial gasses since there is little or no use of such gasses in that state.

The gas cabinets are categorized into four popular types based on the type of gas. The categories are:

These gas cabinets are used for inert, non-reactive and non-toxic gases. There are automatic gas cabinets also available and thus these cabinets are less useful when compared to automatic cabinets.

These cabinets are available for corrosive, toxic and reactive gases. They provide safe and clean delivery of ultra-high purity gases. Such systems are designed to monitor a huge number of facility inputs and process sensors as per requirements.

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