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.
Screw 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.
Copper, Steel, Incoloy, Inconel, Stainless steel and Titanium available
NEMA 1, 4, 4x, 7 terminal boxes are available
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
|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|
|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
• Designed and built for safety
|CSA, CSA US and UL approved
• NEMA 1, 4, 4x, 7 terminal boxes are available
|CSA™ and UL approved|
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