Product Details
Caloritech™ CX series screwplug immersion heaters are primarily designed for water heating in tanks or vessels, featuring brass screwplugs with NPT-style threads and copper sheath elements. These heaters come with factory-installed thermostats to control liquid temperatures and are intended to be fully immersed in liquid at all times, facilitating water heating through natural convection currents. The typical heater configuration includes standard 1" - 2-1/2" NPT tapered plugs, with other sizes available upon special order. Heaters equipped with moisture or explosion-proof housings also incorporate a convenient terminal block mounted on a slide-out trolley. The installation process involves using a threaded half coupling positioned in the vessel wall below the minimum liquid level, ensuring adequate spacing above the bottom to prevent sludge buildup. While horizontal installation is preferred, vertical installation may be feasible with prior consultation. For optimal operation, immersion heaters must achieve a balance between convection currents and temperature differences, with careful attention required for viscous liquids that may impede heat transfer.
