Industrial Pressurizing and Purging Systems In Texas

Higher-risk industrial environments do not solely rely on filtration and ventilation systems, however – equally critical to the prevention of explosive incidents is the control of atmospheric conditions within enclosed environments, most notably chemical and electrical manufacturing plants where purge and pressurization is frequently used; it is a two-step process done prior to energizing electrical equipment within an enclosure. The goal is to ensure that once an enclosed space is purged and pressurized, that it can then safely be energized.

The driving concept of pressurizing and purging the enclosed spaces of electrical apparatus is to prevent the influx of a flammable atmosphere. Purging is a widely accepted and understood protection against potential explosions. It is common and used worldwide, and is relatively simple to understand. Protection from potential explosions is achieved by keeping a potentially explosive atmosphere separate from any ignition source, be it thermal or electrical. The source of ignition is mounted inside of an enclosure, and that enclosure is then pressurized relative to the surrounding atmosphere. 

As long as this positive pressure is maintained, no material – including gasses – will be able to enter the enclosed space, and so the internal equipment cannot be exposed to the hazardous substance. There is however a chance that an explosive gas mixture may have entered the enclosure prior to the positive pressure being achieved. To ensure that the enclosure is pressurized with an inert gas, the space is ‘purged’ to flush out its existing contents and ensure that all areas of the enclosure contain only the purging gas.

Standard enclosures are designed to prevent the outside environment from entering, which means that they are generally unsuitable for retaining their internal pressures.

For this reason, enclosures from suppliers of pressurized systems are not categorized the same as general-purpose enclosures. Additionally, the enclosure must be able to maintain its pressure, as on large enclosures the unit can be seen to deform even with relatively low changes between internal and external pressure.

We offer free evaluations as well as development of system specifications for your job site. When it comes down to safety, the best measure to take is getting the right fit, and at Bepco Environmental we are passionate about delivering effective, high-quality systems that guarantee the health and wellbeing of the workers we serve through our commitment to quality and engineering.

We invite you to give us a call or send us a message via our website’s chat box for expert advice at any time, regardless of whether you’re in the market for a specialized system or not; with our team having over 120 years of combined experience in this industry, we understand your need for prompt, accurate, and concise answers.