What is a Screw Plug Immersion Heater? Screw plug immersion heaters are a specific type of immersion heater also sometimes referred to as immersion heaters for water are ideal for direct heating by immersion of liquids and processes including all types of oils and solutions involving the transfer of heat.
Watlow Immersion Heaters
These types of heaters are available in a wide assortment of sizes, screw plug immersion heaters by Watlow® feature both WATROD™ round and FIREBAR® flat tubular elements.
Heating elements are hairpin bent and either welded or brazed into the screw plug — depending on the elements particular sheath and plug material compatibility. Terminal enclosures are standard; but custom moisture resistant or explosion resistant enclosures are also available based on your individual needs or your specific application. Optional thermostats provide convenient and easy process temperature regulation to the screw plug immersion heater.
Common Types of Screw Plug Immersion Heaters
Common types of screw plug immersion heaters include:
- Standard screw plug heater
- General purpose hot water tank heater
- Self contained screw plug heater
Screw Plug Heater Sheath Materials
Sheath materials for these types of heaters include Incoloy 800, 316/316L stainless steel, 304/304L stainless steel, copper, and steel.
Screw Plug Component Materials
Common screw plug materials for these immersion heaters include brass screw plug, 304 stainless steel, 316 stainless steel, and steel.
In addition to screw plug immersion heaters, Hi-Watt Inc. carries a wide variety of other types of immersion heaters including over the side immersion heaters, and flanged immersion heaters. Contact us today for more information on industrial heaters and industrial electric heaters and how we can help you.
|Material||Maximum Opening Temperatures||Maximum Watt Densities|
|Features & Benefits:|
|A wide variety of element sheath and screw plug materials||
|Welding or brazing WATROD and FIREBAR elements to the screw plug||
|WATROD hairpins are repressed (recompacted)||
|2 ½ in. (64mm) NPT screw plug assemblies feature element support(s)||
Immersion Heaters for Water
Hi-Watt carries the most extensive inventory of immersion heaters for water in the US. We are leading Watlow distributors and carry a wide variety of Watlow heaters. Contact us today for more information on screw plug immersion heaters.