Product Details
Caloritech™ CX series screwplug immersion heaters are designed primarily for water heating in tanks or vessels and feature brass screwplugs with NPT-style threads and copper sheath elements. These heaters can be equipped with factory-installed thermostats for precise control of liquid temperatures, and are intended to be fully immersed in liquid at all times. Typical heaters come with standard 1" to 2-1/2" NPT tapered plugs, with other sizes available upon request. Thermostat-equipped models with moisture or explosion-proof housings include a terminal block mounted on a slide-out trolley for ease of access. The immersion heater's installation involves a threaded half coupling positioned in the vessel wall, well below the minimum liquid level, while allowing space above the bottom to prevent sludge buildup over the elements, which should remain uncovered. Horizontal installation is preferred, although vertical installation may be possible with prior consultation from the factory. The heater operates by establishing a balance between convection currents and the temperature differential between itself and the liquid; care must be taken to maintain the necessary heat transfer rate to avoid overheating.
