Outdoor enclosures handle extreme cold

10 June 2015 Enclosures, Racks, Cabinets & Panel Products

A new easy-access enclosure from Intertec provides a versatile alternative to free-standing cabinets for the environmental protection of field-based process instrumentation.

The enclosures are made from tough glass reinforced polyester (GRP) and include highly insulated options for use in extremely cold climates. They also offer more space than typical instrument enclosures, to allow personnel to use gloved hands when accessing the equipment.

The new enclosures are the latest addition to Intertec’s Diabox range, which are moulded two-part enclosures that open diagonally to provide easy access for operating and maintenance staff. The new Diabox 277 measures 600 x 750 x 600 mm (H x W x D) and has an internal volume of approximately 277 litres, depending on the level of insulation specified.

Despite its large size, the Diabox 277 has a very low heat transfer coefficient of 13 W/K, which minimises the power rating and operational cost of any freeze protection, anti-condensation, or temperature regulation heating that may be fitted. In the case of the ‘arctic’ version of the enclosure, its GRP-PU foam-GRP walls provide uniform and near-perfect insulation, resulting in an exceptionally low heat transfer coefficient of just 2,4 W/K.

The enclosure features a continuous double seal, comprising a mechanical tongue and groove plus a flexible silicon insert strip, which is incorporated in the mating edges to ensure high-integrity closure. As standard, it is rated to IP65 against the ingress of contaminants such as dust and moisture; for more severe applications involving prolonged exposure to driving snow or rain, IP66/67 versions are available. The ‘arctic’ version is also available with an IP68 rating.

Hundreds of accessories are available to configure the enclosure for specific applications. Among the options are viewing windows available in acrylic-, safety- or insulation-glass variants, and a special insulated adaptor to prevent heat loss at the point where impulse lines and heat tracing cables enter the enclosure.

For more information visit www.intertec.info

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