Watlow announced that its tubular flange heater product received the IECEx e certification indicating increased safety protection. A partial list of the available features now includes capability for Ex e IIC: T1–6 Gb, up to 80 °C, enclosure/anti-condensation heaters and IP 66. The principles of the increased safety protection concept are no sparking contacts, no semiconductor devices (the failure mode is not possible to ascertain), no hot surface above temperature class, high integrity electrical connections, increased creepage (distance over insula-tion surface) between live parts and to earth potential, increased clearance distance (through air) between live parts and to earth potential, and high quality materials that have a rated continuous operating temperature of at least 20 °C greater than that achieved under rated voltage and at maximum ambient conditions. Watlow’s flange heaters are designed for heating liquids and gases in tanks, pressure vessels, vaporisers and similar for applications from 40 to 4000 kW.
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