Type 4 and Type 6 Enclosures: As with other standards, an X designation means the enclosure will protect against corrosion. Type 4 and Type 6 enclosures are designed for use in areas where hosedowns are required and limit the ingress of water. Type 6 enclosures can also be partially submerged and Type 6P enclosures provide extended submersion protection.
Issues with Hazardous Materials
There are four NEMA enclosures for use in applications where hazardous materials can be an issue, listed as Types 7 through 10. Types 8 and 9 require the sheet metal enclosures be able to prevent combustion when certain materials are introduced into the system, with type 8 allowing a box to function and limit explosions when it is submerged in oil and type 9 doing the same with flammable particles near or on the enclosures. Types 7 and 10 protect the environment around the devices if an explosion or fire occurs within the box itself.
Unique features of stainless steel enclosures :
Brushed Finish 240 grit as standard, mirror polished and other grains available
Folded and seam welded construction
Manufactured in various thickness
High integrity "one piece" sealing gasket
Integral draining channel prevents liquids or other solid contaminants from running into the enclosure
Another advantage of metal enclosures is that they’re resistant to the elements. If your box will be located outside, a metal enclosure will protect it from rain, snow, sleet, and extreme weather fluctuations. Plastic, on the other hand, expands when exposed to harsh conditions. While metal does cost more than plastic, it is longer lasting and more durable.
If you’re concerned about rust, the experienced professionals at Midwest Metal Products can create an enclosure built with aluminum. Aluminum provides the durability of metal and does not rust. Stainless steel is also a good option to prevent corrosion.
At Midwest Metal Products, we can custom design any project. Wish to include your company logo? Want the enclosure to blend in to your surroundings? Need a certain size for your facility? We can handle any specification or request.
You can also choose from a variety of finishes. Powder coating, wet paint and silk-screening are all completed in-house.
Midwest Metal Products will help you decide about the best enclosures for your purpose and environment. We’ll discuss whether steel or aluminum is the best option for your enclosure and what finish makes the most sense.