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. Screw plug heater is usually installed in smaller liquid containers that require precise heater control. This type of electric heater is capable of heating various liquids such as water, oil or other chemical medium and maintaining a pre-set temperature under mildly or severe corrosive condition. When the tubular heating elements are exposed to the medium, a natural convection current is generated as soon as the sheath starts to heat. This heat dissipates around the medium uniformly up to the top of the equipment.
In contrast to flanged immersion heaters, the hairpin shaped tubular element is welded into a casing or a pipe threaded fitting instead of a flange. Additional thermowells can be installed in order to provide more accuracy for the temperature controlling in order to prevent issues such as the thermal degradation of the medium. Screw plug heater is very efficient in terms of cost and performance for freeze protection, water storage and boilers.
Our standard models are categorized under different specifications based on the application ranging from municipal water temperature control to fuel oil storage. Each model varies in power, immersed length, watt density, terminal enclosure type and other parameters for the purpose of fitting into different application needs. In addition, a temperature control thermostat can be installed to include an additional heating control in order to maintain the desired temperature setpoint of the medium.
A Screw plug heater can be used in small vessel containing temperature sensitive medium. In order to consistently regulate the fluid temperature, control panels are installed to prevent overheating the chemical in unique heat transfer systems. This overheating reaction is known as the thermal decomposition, which is usually an endothermic reaction that involves with excessive heat causing the chemical bonds to break over an undetermined period. Installing a control panel is generally the best solution to protect both your valuable chemicals and electric heater from potential thermal damages.
Our control panels are designed to be simple to use while including multiple functions for different industrial heating applications. Examples of important features include electrical unit metering (Current, voltage and wattage), remote setpoint control, alarm, proportional control signal, etc. The selection of the control panel housing is based on the application’s operating environment. A variety of terminal enclosure types are available for the control panel housing, ranging from general purposes use (NEMA type 1) to explosion/moisture proof (NEMA type 7). And of course, by contacting our office, we are more than happy to assist our clients for the selection of our electric heater products and thermal control systems.
Why is Mineral Oil Used in Thermal Heaters?
Thermal heaters, also known as thermal fluid heaters, employ the use of a thermal liquid such as wat...
What to Use When Heating Wax
Situation A popular chemical compound that often requires heating is wax, which is an organic compou...
What is Passivation? Why do We Need to Passivate Flanged Heaters?
Most of the parts of flanged heaters are made of stainless steel—an alloy that is mainl...
What is a Digital Controller?
Control panels are essential elements of any electrical device. Control panels are especially i...
Vegetable Oil Heating
Food Industries and Vegetable Oil Viscosity In Cleveland Ohio, a large food manufacturer called WATT...
Bitumen Recovery For about forty years now, electrical heaters have been used in the petroleum indus...
Waste Oil Heaters
Waste Oil Heaters Waste oil is initially believed as an excessive synthetic product that should be d...
Heat Transfer: Immersion Heaters in the Food Industry
Immersion heaters represent a near-necessity for food processing and the food industry in general. I...
Duct Heaters: Did you know?
Duct Heaters are heating units that are installed in close proximity to air ducts in commercial or i...
In addition to the needs for oil and gas industries in places like Houston Texas, circulation oil he...
.Crude oil, unprocessed fossil fuel, is one of the most important natural resources. In its unproces...
Duct Heating in HVAC and Building Construction
Heating, ventilation, and air-conditioning (HVAC) systems are used for heating and cooling residenti...
Temperature and Power Controls for Industrial Electric Heating
A control system is an essential part of every industrial heating system. Whereas some applications ...
Wattco’s Guide to Industrial Heaters for the Chemical Industry
In the 21st century we have our ability to control heat to thank for much of the technology which im...
Preheaters of Natural Gas
Natural gas is one of the most commonly used fossil fuel and a nonrenewable source of energy....