Product Details
Caloritech™ CX series screwplug immersion heaters are designed primarily for water heating in tanks or vessels, featuring brass screwplugs with NPT-style threads and copper sheath elements. The heaters are available with factory-installed thermostats to regulate liquid temperatures and are intended to be fully immersed in liquid at all times. They typically utilize standard 1" - 2-1/2" NPT tapered plugs, with other sizes available on special order. Thermostat-equipped screwplug heaters with moisture or explosion-proof housings include a convenient terminal block mounted on a slide-out trolley. The installation of these heaters involves using threaded half couplings located in the vessel wall, positioned below the minimum liquid level to prevent sludge from covering the heating elements. Preferred installation is horizontal, though vertical installation may be possible with prior consultation. For optimal operation, the immersion heater must maintain a balance between convection currents and the temperature differential between the heater and the liquid, with particular care needed for viscous liquids that impede convection currents.
