Emergency
1-800-492-8826

Our Products

Quote Me Now
PDF Catalog

Open Coil Elements

Click to Enlarge

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

  • Options
  • Large diameter coils

    NiCr wire (80-20) or (65-35) with larger diameters

  • Small diameter coils

    NiCr wire (80-20) or (65-35) with smaller diameters

TERMINAL HOUSINGS
Open Coil (style 3)
Open Coil angle 2
Open Coil angle 3
Open Coil angle 4
Open Coil element (style 2)
Open Coil Element with bracket
Open Coil Heating - Skewed
Open Coil Heating Rack
Specifications Applications Features & Benefits

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

Furnace heating

Tank heating 

Pipe heating 

Metal tubing

Ovens

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

BENEFITS 

  • Easy installation
  • Very long – 40 ft or greater
  • Very flexible
  • Equipped with a continuous support bar that ensures proper rigidity
  • Long service life
  • Uniform heat distribution

 

Latest blogs

Common Industries that Wattco works with

Case Studies View All

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...
Read More..

What to Use When Heating Wax
SituationA popular chemical compound that often requires heating is wax, which is an organic compoun...
Read More..

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...
Read More..

What is a Digital Controller?
Control panels are essential elements of any electrical device. Control panels are especially i...
Read More..

Vegetable Oil Heating
Food Industries and Vegetable Oil Viscosity In Cleveland Ohio, a large food manufacturer called WATT...
Read More..

Wattco News View All

Wastewater Treatment
In addition to the needs for oil and gas industries in places like Houston Texas, circulation oil he...
Read More..

Improving Control Panel Design for Heater Systems
Control panels are responsible for ensuring that industrial heating systems function properly, safel...
Read More..

Thermal Fluid Degradation: Causes and Prevention
Hot oil heating systems operate within a closed loop, with the heat transfer fluid recirculating thr...
Read More..

Wattco Executive Offers Expert Testimony for Federal Government
Ilan Toledano, Vice President of Sales and Marketing for WATTCO, testified on behalf of the Minister...
Read More..

A Closer Look at the Efficiency of Flanged Heaters
Are you unsatisfied with your current methods for process heating? Maybe you need something more dur...
Read More..

Most Popular Blogs View All

Downloads

Disclaimer:

Legal

NOTE: All information in CONDEX WATTCO INC ("WATTCO") catalog was considered accurate and correct at printing time. WATTCO is committed to product research and development. WATTCO therefore has the right to make changes to specifications, designs and the Sales Terms and Conditions without prior notice. Should a conflict arise, WATTCO Sales Terms and Conditions will prevail. WATTCO is not responsible for any typographical errors.

For Any questions feel free to
call us at

1-800-492-8826

Copyright © 2022 Wattco. All Rights Reserved.