Emergency
1-800-492-8826

Our Products

Quote Me Now
Online Catalog

Screw Plug Heaters

Click to Enlarge

Screw Plug heaters from WATTCO™ consist of hairpin tubular elements that are brazed or welded into a machined pipe thread fitting, (normally an NPT fitting for North American standards) which are then screwed directly through a threaded coupling in the tank wall or vessel, or installed in pipe. Screw plug heaters are an easy way to heat up solutions in smaller containers that also require controls. Mechanical thermostats or Digital control panels can be used with these immersion heaters to help reach target temperatures with great accuracy meeting your project objectives. Additional thermowells can be installed for high limit temperature probes to help protect your liquid and processes.

WATTCO™ Screw Plug Heater in a TankScrew Plug industrial heaters from WATTCO™ are used for heating gases and liquids in tanks or vessels. These submersible heating elements have been designed so that heat transfer will occur at a rapid rate, enabling quick liquid heat up times. Typically they are implemented in the food and beverage industry, laboratory clinics, applications involving hydraulic oils and lubricants as well as more sophisticated uses such as heating up flammable liquids or gases which require explosion proof housing.

Get a quote on a screw plug heater solution today or feel free to contact us today for any additional information.

  • Options
  • Sheath Material

    Copper, Steel, Incoloy, Inconel, Stainless steel and Titanium available

  • Terminal Boxes

    NEMA 1, 4, 4x, 7 terminal boxes are available

  • Controls

    Mechanical Thermostats, Thermocouples and RTD sensors

  • Screw plug NPT Fittings

    1 inch, 1 1/4 inch, 1 1/2 inch, 2 inch, 2 1/2 inch, 3 inch and 4 inch available

  • Screw Plug Material

    Stainless Steel, Brass, Steel or Titanium Screw plugs available

TERMINAL HOUSINGS
Screw Plug Heater 1 inch NEMA 1 1el
Screw Plug Heater 1 inch NEMA 4 1el
Screw Plug Heater 2 inch NEMA 1 2el
Screw Plug Heater 2 inch NEMA 1 2el pic3
Screw Plug Heater 2 inch NEMA 1 3el
Screw Plug Heater 2 inch NEMA 1 3el no button
Screw Plug Heater 2 inch NEMA 4 2el
Screw Plug Heater 2 inch NEMA 4 3el
Screw Plug Heater 2 inch NEMA 7 2el
Screw Plug Heater 2 inch NEMA 7 3el
Specifications Applications Features & Benefits Literature & Downloads

Sheath materials:

Copper
Steel
Incoloy®
Inconel®
Stainless steel
Titanium

 

Applications Sheath Material Screw Plug Material
Clean water, Freeze protection, hot water storage, Boiler and water heaters, cooling towers, Solutions not corrosive to copper Copper Steel
Hot water, steam boilers, mildly corrosive solutions (in rinse tanks, spray washers) Incoloy Steel
Oils, Gases, Mildly corrosive liquids, stagnant or heavy oils, high temperature, low flow gas heating Steel Steel
Process water, soap and detergent solutions, Soluble cutting oils, demineralized or deionized water Stainless Steel Stainless Steel
Mildly corrosive solutions Stainless Steel Stainless Steel
Severe corrosive solutions, demineralized water Incoloy Stainless Steel
Light Oil, Medium Oil Steel Steel
Food Equipment, Food Equipment with cut out Incoloy Stainless Steel

 

 

KEY FEATURES BENEFITS
NPT screw plugs: 1”, 1 ¼”, 1 ½”, 2”, 2 ½”, 3” and 4’’ Energy efficient
Stainless Steel, Brass or Steel Screw plugs Easy to regulate
0.260”, 0.315”, 0.375”, 0.430” and 0.475” diameters available Easy to install or remove
Sheath materials: Copper ,Steel ,Incoloy®, Inconel®, Stainless steel, Titanium Easy to maintain
Available explosion and/or moisture resistant terminal enclosures upon request. Custom-designed

  • Compact
  • Designed and built for safety
CSA, CSA US and UL approved

  • NEMA 1, 4, 4x, 7 terminal boxes are available
 CSA™ and UL approved

 

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

A Closer Look at the Flange Heater
The flange heater takes the basic principles of immersive thermal fluid systems and applies it on an...
Read More..

Global Electric Heating Elements Continued Growth is Predicted Up to 2025
Electric heating elements are in a state of growth. Over the past decade, there has been a significa...
Read More..

Immersion Heaters for Process Fluids
  Process fluids are found in every major industry, and process fluid heating is an essential t...
Read More..

Achieving Carbon Neutrality With Electric Air Heaters
137 countries have joined in the race to net–zero carbon emissions. So far, only two countries...
Read More..

Electric Heaters for the Beer & Wine Industry
No matter what type of grapes or grain, one of the most important ingredients for producing beer and...
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.