
Enclosure Doors

Enclosure doors may need to be replaced from time to time and it is important to order the correct replacement door that matches the existing enclosure so that the NEMA rating is maintained. When additional security is needed, replacement doors may also include padlocking handles. Enclosure door latches, handles and locks play a big part in enclosure security and safety. In many applications, the value of the equipment housed in the enclosure is significant enough to justify the cost of additional security features. Also, any unauthorized or accidental operation of a control system could have severe consequences. To better secure enclosure doors, there are key locking door latches and key locking wing knobs, as well as, handles that have padlocks, key locks and combinations locks.
Hoffman Replacement Doors for SSLP and SSLP3PT style enclosures maintain the NEMA Type 4X rating and converts clamp covers to a 3-point latch. The replacement doors are 14 gauge Type 304 or type 316L stainless steel and are ideal for corrosive enclosure installations that require frequent access and the security of a PowerGlide padlocking handle.
Products
304 Stainless Steel contains 18% chromium and 8% nickel. It is the most widely used stainless steel within industrial applications. 304 stainless steel resists corrosion and oxidizing agents, which can cause rusting. However, it can tarnish. 304 stainless steel is very strong and can be bent without decreasing the strength, but it can be difficult to manipulate.
Because of its corrosive resistance, 304 stainless steel enclosures are commonly used in dairy plants, mills, bakeries, and many other food processing industries.
316 Stainless Steel. This is a much higher grade of stainless steel containing 16% chromium, 10% nickel and 2% molybdenum, which significantly increases its resistance to pitting and cracking. It has increased corrosive resistance to chloride pollutants, such as salt. 316 stainless steel enclosures are ideal for areas there may have a high salt content, such as coastal areas and areas that use de-icing salts. This type of stainless steel is much more resistant to chemical environments that include sulphuric acid, phosphoric acid or many other chemicals. These types of stainless steel enclosures can be found in areas with high levels of corrosive agents, such as water, wastewater, chemical plants and fertilizer plants. Both 304 and 316 stainless steel enclosures are NEMA 4X rated due to their corrosion resistance, however it is important to remember to never use any chemicals that contain chlorine.