Explosion-proof NEMA 7/8/9 enclosure
- Brand
- Avantia Metales
Environments classified as hazardous.
Explosion-proof NEMA 7 / 8 / 9 enclosure
Used in locations classified as Class I, Division 1 and 2, which contain explosive gases or vapors (for example, in chemical plants, refineries or natural gas processing facilities). As manufacturers, we can design the shape and the application you require.
Ex proof metal enclosures
NEMA 7/8/9 enclosures: customized protection. NEMA 7/8/9 enclosures are designed for specific applications in hazardous environments, mainly where there is a risk of explosion from flammable gases, vapors or combustible dust. Need a unique design? As manufacturers, we customize every detail to fit your project.
Specifications
- Dimensions: standard or custom
- Mounting: wall-mount or free-standing
- Material: carbon steel with electrostatic paint, 304 or 316L stainless steel
- Modifications: drilled holes, viewing window, mounting panel and entries, among others
The area classification (class, division and group) is defined by your engineering: with it in the request, we quote on the correct specification. Every piece is tested at our plant in San Juan del Río, Querétaro, before it ships.
What you can configure
Everything is defined from your drawing or from whatever you know today.
Dimensions and mounting
Height, width and depth; base, plinth or legs; front access or double-front.
Material and finish
Painted carbon steel (safety orange included) or 304 / 316L stainless steel.
Doors and viewing window
One or two doors, bolted flange, inspection window.
Entries
Threaded NPT or metric, in the number and on the face you specify.
Mounting panel and equipment
Mounting panel; push buttons, selector switches and pilot lights per your list.
Nameplates
Identification and warning nameplates with your text.
To get a quote faster, have on hand
- Drawing or sketch with dimensions
- Area classification (you specify it)
- Entries: quantity, size, NPT or metric
- List of components that go inside
- Quantity and the date you need it
How we build and test it
Hydrostatic and pneumatic
Per ASME Section VIII, Division 1.
Liquid penetrant testing
On welds and flanges, by personnel qualified per SNT-TC-1A.
From your request to delivery
Built at our plant
Frequently asked questions
What do I need to request a quote?
Approximate dimensions, material and quantity are enough to start. If you have a drawing, attach it as a PDF; if not, mark it as “Not yet” and an engineer will call you.
Who defines the area classification?
You or your engineering team specify it, based on where it will be installed. We build the enclosure to that specification.
What tests are done before it ships?
Hydrostatic and pneumatic testing per ASME Section VIII, Div. 1, and liquid penetrant inspection.
Do you build it in 316L stainless steel?
Yes: painted carbon steel, 304 or 316L stainless steel.
Do you invoice and ship throughout Mexico?
Yes, with a CFDI invoice. Large items go by freight, quoted with your order, or you can pick up at our plant in San Juan del Río.