Watlow's immersion heaters are designed primarily for direct immersion in liquids such as water, oils, solvents and process solutions, molten materials as well as air and gases. By generating all the heat within the liquid or process, these heaters are virtually 100 percent energy efficient. These versatile heaters can also be formed and shaped into various geometries for radiant heating and contact surface heating applications. UL® and CSA component recognized elements are available.

General Industrial Applications:

Product		Material	Maximum Operating Temperatures		Maximum Watt Densities
			°F	°C	W/in2	W/cm2
	Screw Plug Immersion Heaters	Incoloy®	1600	870	120	18.6
		Stainless steel	1200	650	120	18.6
		Steel	750	400	120	18.6
		Copper	350	175	120	18.6
	ANSI Flanged Immersion Heaters	Incoloy®	1600	870	100	15.5
		Stainless steel	1200	650	100	15.5
		Steel	750	400	100	15.5
		Copper	350	175	100	15.5
	Flanged Immersion Heaters	Incoloy®	1600	870	100	15.5
		304 stainless steel	1200	650	100	15.5
		Steel	750	400	30	4.7
		Copper	350	175	45	6.9
	Over the Side Heaters	Incoloy®	1600	870	60	9.3
		Titanium	1400	760	43	6.7
		Steel	750	400	23	3.6
		316 stainless steel	1200	650	60	9.3
	Firerod Immersion Heaters	Incoloy®	212	100	300	46.5

Process Technology electric immersion heaters are designed for the demands of corrosive chemical heating.   Open tank, screw plug and flange configurations are available.  A wide variety of sheath materials ensure long life regardless of the chemistry.  Materials include: fluoropolymer, quartz, titanium, 316 stainless steel, 304 stainless steel and plain steel.  Sizes as small as 100 watts for laboratory environments and as large as 54,000 watts (flange heater up to 270,000 watts) for industrial applications are available.  Many standard configurations are available from stock.  Quick lead times are available for custom configured heaters.  (Manufacturing lead times can be as short as two or three days.)  Heaters are UL, CSA and CE.

Chemical & Plating Applications:

		Fluoropolymer Heaters: Compatible with virtually any chemistry. Sizes up to 27 kW. Large variety of standard and custom configurations for over the side and bottom installations.
		Metal Heaters: Variety of materials to match your application (titanium, 316 stainless, 304 stainless and plain steel). Sizes up to 54 kW. Standard and custom configurations for over the side and bottom installations.
		Quartz Heaters: Ideal for most acidic chemistries. Metal grounded quartz sheathed heaters up to 30 kW. Polypropylene guards standard.
		Special Application Heaters: Unique or difficult applications are our specialty. Configurations available include: lab heaters, flexible riser heaters, phosphate heaters, deep tank heaters, VaripowerTM heaters, EasyPlugTM heaters, etc.