PPI Engineering’s market leading Purge and Pressurisation safety device ensures the safe operation of electrical machines and enclosures within Zone 1/21 and 2/22 hazardous areas. The unique attributes of this system provide numerous advantages over its competitors.
PP1214 is designed in accordance with IEC 60079-2:2014 Ed 6/ EN 60079-2:2007, ensuring a pressurised and leakage compensated enclosure. This creates a non-hazardous atmosphere inside the enclosure by keeping a positive differential pressure between the pressurised enclosure and atmospheric pressure to ensure that no potentially explosive gases enter the electrical equipment.
Activated when the electrical machine is OFF prior to being switched ON. Clean air/inert gas is blown through the machine and monitored to ensure compliance with IEC 60079-2:2014 Ed 6/ EN 60079-2:2014.
Once purge cycle is satisfactory the machine is considered non-hazardous and ready to be switched ON. A positive differential pressure to atmospheric has to be maintained. This is achieved by compensating for any air/inert gas leakages that the machine might have.
|PPI214.1.1||Remote||Manual Ball Valve|
|PPI214.2.1||Local||Manual Ball Valve|
|PPI214.3.1||Remote||Automatic Electrical Solenoid Valve|
|PPI214.4.1||Local||Automatic Electrical Solenoid Valve|