Open coil elements are the most efficient type of electric heating element while also the most economically feasible for most heating applications. Used predominantly in the duct heating industry, open coil elements have open circuits that heat air directly from the suspended resistive coils. These industrial heating elements have fast heat up times that improve efficiency and have been designed for low maintenance and easily, inexpensive replacement parts.
Open coil heating elements from Wattco are typically made for duct process heating, forced air & ovens and for pipe heating applications. Open coil heater elements are made to fit inside standard 2’’ or 3’’ schedule 40 NPS pipe. Open coil heaters are used in tank and pipe heating and/or metal tubing. A minimum clearance of 1/8’’ is required between the ceramic and the inside wall of the tube. Installing an open coil element will provide excellent and uniform heat distribution over a large surface area.
Open coil heater elements are an indirect industrial heating solution to decrease watt density requirements or the heat fluxes on the surface area of the pipe connected to the heated section and prevent heat sensitive materials from coking or breaking down.
Get a quote on an open coil element today. WATTCO also manufactures other industrial heating products such as infrared heaters, control panels, circulation heaters and more. Click here to view all of our products
High Quality grades of NiCr resistance wire (80-20) & (65-35)
Resistive wire gauges from 6 Gauge wire up to 38 Gauge available
Coil diameters from .250 inch dia up to 0.875 inch dia
Arrow Ceramic/steatite clips (insulators) or rounded ceramic clips available
Termination options include screw type or other alternatives
Custom stretch ratios available
Air Duct heating
Quick heat up time & easily replaceable
Outside diameters: 1 7/8’’ and 2 ¾’’
Lengths: 60-320’’ (5-26 ft)
Single element ratings: 4-20 kW
Pipe Surface: 3-12 W/In2
Voltages: 240, 480 and 600V, 3 PHASE
Used in horizontal 2’’ or 3’’ schedule 40 NPS pipe
Equipped with high density electrical ceramic insulating supports
Can be bent in a vertical plane on at least 12’’ radius
Heavy gauge bus bars
Heavy gauge resistance wire
Special ratings and lengths available upon request
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
SituationA popular chemical compound that often requires heating is wax, which is an organic compoun...
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 mainly compri...
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...
Immersion Heaters and Mechanisms of Heat Transfer
Immersion heaters are a popular application in the oil & gas, petrochemical and manufacturing in...
Electric Heaters For Steam Pressure Systems
Steam pressure systems are essential in the food and beverage industry, as well as any precis...
Electric Pipe Heaters in the Asphalt Industry
Pipe heaters are designed to fit inside of a pipe, making it possible to provide heat where other he...
Choosing the Best Heater for Heating Chemicals
Process heating is an important part of chemical production and it’s important to have the mos...
COME VISIT US AS THE 2017 ADIPEC SHOW IN ABU DHABI – STAND #2470
Electric Heating Coils: Selection & Design
Electric heating coils transfer energy into heat in a variety of heating applications. They’re an ...
What is a Pressure Vessel?
Pressure vessels are carefully fabricated, enclosed containers designed for the purpose of holding e...
Duct Heating in HVAC and Building Construction
Heating, ventilation, and air-conditioning (HVAC) systems are used for heating and cooling residenti...
Radiant Heaters VS Convection Heaters
For area heating, convection and radiant heaters are both common options. They can even use s...
Temperature and Power Controls for Industrial Electric Heating
A control system is an essential part of every industrial heating system. Whereas some applications ...