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.DOWNLOAD BROCHURE
ATEX Quality Assurance Certificate
Concept – Refer to brochure for more details
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.
This type of protection consists of two main stages:
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.
Leakage Compensation and Pressurisation Cycle:
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.
|MODEL||MODEL CONTROL||LEAKAGE COMPENSATION||CERTIFICATION|
|PPI214.1.1||Remote||Manual Ball Valve||*ATEX|
|PPI214.2.1||Local||Manual Ball Valve||*ATEX|
|PPI214.3.1||Remote||Automatic Electrical Solenoid Valve||*ATEX|
|PPI214.4.1||Local||Automatic Electrical Solenoid Valve||*ATEX|
|PPI214.1.2||Remote||Manual Ball Valve||*ATEX and IEXEC|
|PPI214.2.2||Local||Manual Ball Valve||*ATEX and IEXEC|
|PPI214.3.2||Remote||Automatic Electrical Solenoid Valve||*ATEX and IEXEC|
|PPI214.4.2||Local||Automatic Electrical Solenoid Valve||*ATEX and IEXEC|