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What is a screw plug immersion heater? A screw plug heater is a type of electric immersion heater designed to be installed in a tank, container, or pipe. The heating element in an immersion heater is usually controlled by a thermostat, which maintains the liquid at a preset temperature.
WATTCO delivers a series of screw plug immersion heaters for process heating of liquid and gas in tanks and vessels. The WATTCO screw plug immersion heaters have hairpin tubular elements and are manufactured by welding or brazing these tubular elements into a screw plug.
Screw plug immersion heaters provide heating solutions for fluid freeze protection and winterizing, hot or warm water storage, parts cleaning, plating and finishing chemicals, waste oil, wash systems and numerous other thermal heating applications.
Aug 26, 2023 · The screw-plug heater is a convenient method for heating solutions in smaller containers that call for automatic temperature control. Used as a direct heating element, they are ideal for heating gases and liquids in tanks or vessels.
Screw Plug Immersion Heaters consist of hairpin tubular elements welded or brazed into a screw plug and provided with terminal enclosures for electrical connections. They can be screwed through a threaded opening into a tank wall or vessel.
- Stainless steel, Brass, Steel, Titanium
- Copper, Steel, 304 Stainless steel, INCOLOY
- 1 to 4 inches
- Up to 120 W/inch²
Screw plug immersion heaters are ideal for direct immersion heating of liquids, including all types of oils and heat transfer solutions. Available in a variety of sizes, Watlow screw plug immersion heaters feature both WATROD round and FIREBAR flat tubular elements.
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Jan 9, 2023 · A screw plug heater is a subcategory of immersion heaters, which typically requires small space to operate. The principle of screw plug heaters is similar to the flanged immersion heaters. The heater is immersed into the wall of the equipment, such as vessels, water tanks or chemical containers.