Product Details
Caloritech™ CX series screw plug immersion heaters are specifically designed for water heating in tanks or vessels, featuring brass screw plugs with NPT-style threads and copper sheath elements. These heaters can be equipped with factory-installed thermostats for accurate temperature control of the liquid and are intended for full immersion in the liquid at all times. Typical units include standard 1" to 2-1/2" NPT tapered plugs, with other sizes available upon special order. The heaters designed with moisture or explosion-proof housings incorporate a convenient terminal block mounted on a slide-out trolley for easy access. Installation is facilitated through a threaded half coupling located in the vessel wall, positioned well below the minimum liquid level to prevent sludge build-up over the heating elements. Although horizontal installation is preferred, vertical installation may be an option; consultation with the factory is recommended before purchase. To operate effectively, immersion heaters must achieve a balance between convection currents and the temperature differential between the heater and the liquid, with careful considerations for viscous liquids that may hinder heat transfer. The electric heater offers close to 100% efficiency, enhanced safety, ease of control, and typically lower installation costs.
