PurgEx™ Z, Y, & X Purge Indicators/Controllers
Ideal method of explosion protection where components internal to the enclosure cannot be specifically rated for the area
Purged and pressurized systems are an ideal method of explosion protection where components internal to the enclosure cannot be specifically rated for the area. They provide a light weight, corrosion resistant alternative to tradional explosion proof enclosures. The protection concept maintains an above atmospheric pressure within the enclosure not allowing hazardous gas and/or dust to enter and to come into contact with possible sources of ignition.
The Purge Process
1. Purge Phase: In this phase, hazardous gases are removed from the enclosure by diluting the inside of the enclosure with a purge gas source. The enclosure is diluted between 4 to 5 times its cubic capacity with this purge gas, eliminating ignitable amounts of hazardous materials from being present inside the enclosure.
2. Pressurized Phase: In this phase, ignitable amounts of hazardous materials have been eliminated from being inside the enclosure. To prevent outside hazardous materials from entering the enclosure, the enclosure is then slightly pressurized above the outside environment.
• Stainless steel or anodized aluminum construction for superior corrosion resistance (NEMA 4,4X)
• Small Profile and light weight reduces installation footprint
• Global Certifications; Certified to: ATEX/IECEx /NEC/CEC in a single part number - Ideal for global companies looking to standardize on a single design
• Dry contact outputs for remote monitoring comes standard.
