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PURGE AND PRESSURIZATION SYSTEMS

PANELS





MINI Z-PURGE - LEAKAGE COMPENSATION

For purged enclosures in Class I Division 2 Gp A-D, Zone 2 IIC Ex [pz] Ex [py] and Zone 22 Ex pD.

The Leakage Compensation (LC) Pressurizing system has an initial High Purge Flow rate to remove the gasses which may be present when the purged enclosure is initially closed. The high purge rate is initiated manually.

When the purge is turned off a small amount of air flow maintains the enclosure pressure. This compensates for leaks, conserving compressed air.

Typical Enclosure Size:
60 ft3 (1.35 m3) @ 8 scfm = 225 Nl/min
120 ft3 (2.70 m3) @ 16 scfm = 450 Nl/min
240 ft3 (5.40 m3) @ 32 scfm = 900 Nl/min

Note: Enclosure sizes are based on 30-minute purge period.
There is no restriction on this purge period.

Features

  • One Model number includes the Control Unit (CU) and Relief Valve (RLV)
  • Simple integrated mounting with little or no piping needed.
  • IECEx , ATEX, FM, INMETRO and cULus approvals covering IEC/EN 60079-2 & NFPA 496.
  • Clear visual status indication.
  • Remote Alarm contacts.









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