Over-the-Side Immersion Heater
Over-the-side heaters are ideal for heating water, oils, solvents, salts and acids. Application versatility is enhanced with optional sheath materials, kilowatt ratings, terminal enclosures and mounting methods. The L and O shaped installed-from-the-top heaters slide easily into tanks, with the heated portion immersed along the side or at the bottom. The drum immersion heaters are designed for direct immersion in a standard 55-gallon steel drum. Watlow vertical loop immersion heaters are well-suited for open tank applications.
Performance Capabilities
- Alloy 800 sheath element watt densities up to 60 W/in (9.3 W/cm)
- Wattages up to 50 kilowatts
- Voltages up to 600VAC
Features and Benefits
- Rugged, light-weight construction resists damage during installation or removal
- 0.475 in. (12 mm) diameter WATROD heating elements offers one- or three-phase operation
- Repressed (recompacted) WATROD hairpins maintain MgO density, dielectric strength, heat transfer and heater life
- Four inch (100 mm) sludge legs keep heating elements off the tanks bottom to help avoid being covered with sediment
- RTV riser seal prevents moisture from infiltrating electrical areas
- Standardized size 1 in. (25 mm) conduit openings facilitate wiring
- SRG insulated flexible lead wires, rated to 390F (200C) allow factory or field wiring for three- or one-phase operation
- Riser materials are compatible with element sheath materials such as stainless steel with alloy 800 sheath and steel with steel sheath to meet varying application needs, ensuring ease of use
- Integral thermowells provide convenient temperature sensor insertion and replacement without draining the fluid being heated
- Moisture resistance standardizes enclosures
- UL and CSA component recognition 480 and 600VAC maximum under file numbers E52951 and 31388 respectively
Typical Applications
- Water heating
- Solvents
- Freeze protection
- Salts
- Viscous oils
- Caustic solutions
- Storage tanks
- Paraffin
- Degreasing tanks
Download the Over-the-Side Immersion Heater Datasheet
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Over-the-side heaters are versatile and ideal for heating water, oils, solvents, salts and acids, with the heated portion immersed along the side or at the bottom