These Heaters are all rated at 23 watt/Sq. In. for Air & Gas Heating
Please consult Bluewater Heater for gas flow rates and pressure drops.
Watlow circulation heaters combine the popular Watlow WATROD® or FIREBAR® heating elements together with a tank, insulation, terminal enclosure, mounting brackets, inlet, and outlet connections to form a complete assembly. Watlow circulation heaters, therefore, provide a ready-made means to install electric heating with a minimal amount of time and labor.
Other Circulation Heaters Available from WATLOW – Please Inquire
| Material | Maximum Operating Temperatures | Maximum Watt Densities | ||
|---|---|---|---|---|
| °F | °C | W/in2 | W/cm2 | |
| 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 |
These Heaters are all rated at 23 watt/Sq. In. for Air & Gas Heating
Please consult Bluewater Heater for gas flow rates and pressure drops.
Watlow circulation heaters combine the popular Watlow WATROD® or FIREBAR® heating elements together with a tank, insulation, terminal enclosure, mounting brackets, inlet, and outlet connections to form a complete assembly. Watlow circulation heaters, therefore, provide a ready-made means to install electric heating with a minimal amount of time and labor.
Watlow circulation heaters are designed to force circulated air and gases over a heating element. Watlow circulation heaters are ideal for either in-line or side-arm operations. By using industry-leading FIREBAR® or WATROD® heating elements, these Watlow circulation heaters deliver fast response and even heat distribution.
Watlow circulation heaters maintain the high performance capabilities for which all Watlow heaters are known. Watlow circulation heaters are rated up to one megawatt, generating watt densities up to 23 watt/sq. In. for Air & Gas and sheath temperatures of up to 1600°F (depending upon sheath material). The tanks are insulated with one inch of thermal insulation rated to 750°F to reduce heat loss. A heavy gauge steel jacket protects the entire assembly. A wide range of sheath materials, wattages, vessel sizes and materials, pressure ratings, terminal enclosures and controls are available to the Watlow circulation heaters to meet virtually all your circulation heater assembly needs.
Circulation heaters provide a ready-made means to install electric heating with a minimal amount of time and labor. This is accomplished by combining heating elements, vessel, insulation, terminal enclosure, mounting brackets and inlet and outlet connections into a complete assem
Watlow® meets virtually all your circulation heater assembly needs with made-to-order units. These units can be made from a wide range of heating element sheath materials, wattages, vessel sizes and materials, pressure ratings, terminal enclosures and controls.
| Features | Benefits |
|---|---|
| Catalog screw plug and flange part numbers |
|
| ANSI B16.5 Class 150 on 4 or 6 inch FIREBAR element flanges and 3 to 14 inch WATROD element flanges |
|
| FIREBAR assemblies pack more wattage in a smaller heater bundle |
|
| Compacted MgO insulation filled elements |
|
| 1 inch (25 mm) thermal insulation rated to 750°F (400°C) |
|
| Heavy-guage steel jacket (shroud) |
|
| All catalog units rated to ANSI pressure Class 150 |
|
| Standard offering includes units rated for up to and including ANSI pressure class 600 (application review required) |
|
