Mecair Enclosures for Hazardous Locations

Mecair Enclosures for Hazardous Locations

DESCRIPTION

The CXD explosion-proof solenoid enclosure is designed for those applications where the atmosphere may present the possibility of combustion. The CXD enclosure is explosion proof with the following grade of protection: II 2 G Ex d IIB T5 - II 2 D Ex tD A21 IP67 T100°C. This ensures that any spark, resulting from the electrical activation of the solenoid, will be restricted within the interior of the enclosure.

The CXD explosion-proof enclosure is certified in accordance with the European Directive 94/9/CE (ATEX).

The CXD Series is available in two models/sizes:

  • CXD 4: from 1 to 4 solenoid pilots
  • CXD 8: from 5 to 8 solenoid pilots

Each solenoid pilot, energised in sequence, commands a corresponding VEM type diaphragm valve, by way of a 6 mm internal diameter pneumatic tube being less than 2 metres in length. The control consists in releasing the compressed air from the upper chamber of the valve and its piping. The CXD enclosure is supplied complete with fixing brackets. The common terminal is pre-wired.

The CXD solenoid base is made of extruded aluminium, while the cover is in diecast aluminium. Both are anodised for protection against aggressive agents. The CXD enclosure features a common exhaust port, located on the underside of the unit. The exhaust is open to the atmosphere and can be piped or muted with a silencer. Within the enclosure a safety device is installed in order to cut off the power supply to the solenoids in case of an abnormal increase in temperature within the enclosure. This device is recognised as GTRM-1. It is possible to install within the enclosure a heat resistor group complete with thermostat for installation in cold climates where low temperature is a problem. GTRM-2 maintains an internal temperature of approximately +4°C, and is available in two models:

  • GTRM 50, for CXD 4
  • GTRM 120, for CXD 8

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