Over the Side Heaters are used in applications where drilling a hole into the tank wall is not possible or desirable. The heater can be installed resting at the bottom of the tank or hanging from the lip. Over the side heaters are available in a variety of sizes, materials. and configurations The heating elements are offered in a number of materials suited to a variety of fluid heating applications. Terminal housings are available for indoor, outdoor (weather-proof NEMA 4) and explosive (NEMA 7) environments. Many options are available including thermostats, high limit and process thermocouples or RTD sensors. Since we are a made to order company, we can offer a large selection of sizes and configurations which are not listed below. Please contact us for assistance with your application.

COMMON SHEATH MATERIALS

	SHEATH MATERIAL Copper Steel Stainless Steel Incoloy 800® Inconel 600® Titanium	APPLICATION WATT DENSITY Watt.in² Potable water 40-80 Fuel Oils Hydraulic Oils 20-25 12-25 De-Ionized, R-O, Process Water, Mild Acids 40-80 12-25 Water, Mild Alkaline Solutions, Air And Gases Maximum Sheath Temperature 1400ºF 10-125 Water, Very Alkaline Solutions, High Temperature Air And Gases Maximum Sheath Temperature 1500ºF 10-50 Sea Water, Very Alkaline Solutions, Some Acid Solutions 10-45

BUILT IN THREMOSTAT OPTIONS

	Power Ratings	Up to 240 volts, 25-amp single pole, single throw (SPST) Up to 240 volts, 25-amp double pole, single throw (DPST) Up to 600 volts, 15-amp triple pole, single throw (TPST)

	Temperature Ratings	-16 to 40°C (0-100°F) 10 to 10°C (50-250°F) 70 to 280°C (160-540°F) 160 to 370°C (320-700°F)

BUILT IN SENSOR OPTIONS

	Sensors	"K" calibration thermocouple for high limit sheath protection and fluid sensing and temperature control. "J" calibration thermocouple for high limit sheath protection and fluid sensing and temperature control. 100 Ohm RTD Sensor for fluid sensing and temperature control.

TERMINAL HOUSING

	Terminal Housing	NEMA 4 (weather proof) terminal housings are standard on all units. NEMA 4X (moisture and corrosion) and NEMA 7 (hazardous) are available.

OPTIONAL CONSTRUCTION

- 6 Element Design Horizontal - Thermostat for Process Control - Dual High Limit Thermocouples - Sludge Legs		- 6 Element Design Horizontal - Gooseneck Riser - Sludge Legs		- 9 Element Design Stacked - Thermostat for Process Control - Sludge Legs

- 6 Element Design Stacked - Thermostat for Process Control - Sludge Legs		- 3 Element Design Horizontal - Gooseneck Riser - Sludge Legs		- Single Element - Shallow Tank Design - Thermostat & Mounting Flange

- Hangs Over The Lip of Tank - 1 Element Design		- Hangs Over The Lip of Tank - 3 Element Design