Product Details
Caloritech™ CX series screwplug immersion heaters are primarily designed for water heating in tanks or vessels and feature brass screwplugs with NPT-style threads and copper sheath elements. These heaters come with factory-installed thermostats for controlling liquid temperatures and are intended to be fully immersed in liquid at all times. Typical heaters utilize standard 1" to 2-1/2" NPT tapered plugs, with other sizes available upon special order. All thermostat-equipped screwplug heaters that include moisture or explosion-proof housings feature a convenient terminal block mounted on a slide-out trolley. The installation process involves using standard 1 in. to 2-1/2 in. NPT tapered plugs, with other plug types available upon request. For optimal performance, heaters should be installed through a threaded half coupling in the vessel wall, positioned below the minimum liquid level but above the tank bottom to prevent sludge build-up on the elements. Horizontal installation is recommended, although vertical installation may be possible with prior consultation. The operation of immersion heaters relies on establishing a balance between convection currents and the temperature difference between the heater and the liquid, with special attention required for viscous liquids that impede heat transfer.
