Enclosure Drains

More Information about Enclosure Drains

The materials used in the construction of enclosure drains are also significant. Stainless steel vent drains, for example, offer durability and resistance to corrosion, making them ideal for harsh environments. In contrast, non-metallic vent drains, such as those made from polyester, may be used in less demanding situations. The choice between these materials often depends on the specific requirements of the enclosure, including its UL type rating, which indicates the level of protection provided against various environmental factors.

The design of the enclosure drain is tailored to its specific application. For hazardous location enclosures, the design ensures that any drainage does not compromise the enclosure's ability to prevent the ingress of hazardous materials. This is where the enclosure's UL type rating becomes crucial, as it must align with the specific safety requirements of the hazardous location.

Enclosure drains, whether made of stainless steel or non-metallic materials, function as an air pressure equalizer, reducing the harmful effects of temperature-induced vacuums and enabling accumulated water to drain effectively. Their importance is particularly pronounced in hazardous locations, where they help to maintain the safety and functionality of the enclosures.

Purge System Basics 

3 common reasons to use purge systems 

They allow electrical enclosures to be installed in hazardous areas without the need for explosion proof enclosures.

They recycle the air inside of an enclosure, reducing the internal temperature.

They help reduce the effects of corrosion on components housed within the enclosure.

How does a purge system work?

Purge systems use incoming air from a supply line, solenoid valves, pressure gauges and pumps, to constantly maintain a positive pressure inside an enclosure. This prevents any flammable gases from entering the enclosure potentially causing an ignition event to occur. By maintaining a positive pressure within the enclosure, moisture and corrosive gases are also prevented from entering the enclosure and damaging components. Most purge systems will ensure that the air inside the enclosure is recycled a certain amount of times within a given time period. This air recycle function assists in maintaining a cooler temperature within the enclosure.