Purge & Pressurization Panel

This method of explosion protection is a process which ensures that the pressure inside the enclosure is sufficient to prevent the entrance of a flammable gas, vapour, dust, or fibre and prevent a possible ignition. Another process maintains a constant flow  of air (or an inert gas) to dilute to take away any potentially explosive atmosphere.

Equipment where during normal operation sparks, electric arcs or hot surfaces are generated and complex industrial equipment (controls) which must be operated in a potentially explosive atmosphere protected by this type of protection. Large machines, slip ring or collector motors, switch cabinets and control cabinets and analytical apparatus.

Categories:

Additional information

Product Certifications

ATEX
IECEX
Area Classification

Gas: Zone 1 & 2
Dust: Zone 21 & 22
Type of Protection

:-pxb
""pxb"" is pressurized encapsulated equipment with a device protection level of ""Gb"" or ""Db"". It protects normal industrial components which can be operated in zone 1/21 due to the pressurized enclosure.
:-pyb
""pyb"" is pressurized encapsulated equipment with the device protection level ""Gb"" or ""Db"". It protects components which correspond to the device protection level ""Gc"" or ""Dc"". The protection level ""pyb"" therefore permits the operation of approved components of zone 2/22 in zone 1/21
:-pzc
""pzc"" is pressurized encapsulated equipment with the device protection level ""Gc"" or ""Dc"". It protects normal industrial components that can be operated in Zone 2/22 due to the pressurized enclosure"
Standards / Norms

IEC / EN 60079-0
IEC / EN 60079-1
IEC / EN 60079-2
IEC / EN 60079-7

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