PHCo Lo-Density Rigid Tubular Drywell Tank Heaters

Process Heating Company (PHCo) Lo-Density® Rigid Tubular Drywell Tank Heaters provide an efficient and safe form of heat for asphalt and emulsion distributor truck tanks, according to the manufacturer. With the Lo-Density heating system, the operator simply plugs the heater in at the end of the day, and it maintains the emulsion at the correct temperature overnight or over a weekend. The result is that the truck is ready to begin work immediately in the morning, without waiting on burners to heat the asphalt at the beginning of the shift.

With no open flame, these heaters eliminate concerns associated with lighting and operating burners. PHCo’s unique drywell-style elements reside inside the heater’s sheath. The low-watt-density heaters dissipate controlled heat on the sheath, providing even heat distribution throughout the reservoir to prevent coking or damage of temperature-sensitive asphalt and emulsion material. The drywell-style heating elements also are easily accessible from outside of the tank, eliminating the need to drain the tank to service them.

The tank heaters can be installed as new or retrofit equipment. In fact, in just the past few years, distributor truck manufacturers have increasingly promoted their ability to provide an electric heat option on their units. PHCo also offers a drop-in heater option for current truck owners who are interested in converting their trucks to either all-electric heat, or a combination of electric and fossil-fuel heat.

UL-listed controls located on the distributor truck fender offer easy-to-use complete automation of temperature regulation. The main indicating temperature control regulates the product temperature and includes a high-limit control for safety. The main disconnect and individually fused heat circuits provide overcurrent protection. All components are mounted and prewired in a UL-listed, weatherproof enclosure.

Each heating unit is designed for the individual application, and can be customized to meet the specific needs of the manufacturer or user for sheath diameter, number of elements and sheath length, or applications. Rigid Heaters can be made from mild steel or various grades of stainless steel, depending on the application. The sheath wall thickness ranges up to 0.3 inch for durability and corrosion resistance. The heating units are suitable for a kilowatt rating of up to 1,000 kW; voltages up to 600 VAC, in single- or 3-phase; and watt densities of 3 watts per square inch of heater surface being standard. Terminal enclosures come standard with moisture resistance. Process Heating Company stands behind its equipment, offering an industry-exclusive five-year element replacement guarantee.

For more information, visit www.processheating.com.