High Tech Systems & Equipment Inc. - Systems & Equipment 
Description
Watlow Screw Plug Heaters
Watlow Screw Plug User Manual (PDF)
Ideal for Direct Immersion Heating of Liquids
Call 513-353-9955 for pricing or email sales@htsei.com
Screw plug immersion heaters are ideal for direct immersion heating of liquids, including all types of oils and heat transfer solutions. Available in a variety of sizes, screw plug immersion heaters feature both WATROD round and FIREBAR flat tubular elements. Heating elements are hairpin bent and either welded or brazed into the screw plug, depending on element sheath and plug material compatibility. General purpose terminal enclosures are standard with optional moisture resistant, explosion resistant and explosion/moisture resistant enclosures available to meet specific application needs. Optional thermostats provide convenient process temperature regulation to the screw plug immersion heater.
Watlow Screw Plug Specifications
| Description | Information |
|---|---|
| Material | Alloy 800/840 |
| Maximum Operating Temperature – C | 870 ºC |
| Maximum Operating Temperature – F | 1600 ºF |
| Maximum Watt Densities | 18.6 W/cm^2 |
| Maximum Watt Densities | 120 W/in^2 |
| Description | Information |
|---|---|
| Material | N/A |
| Maximum Operating Temperature – C | 175 ºC |
| Maximum Operating Temperature – F | 350 ºF |
| Maximum Watt Densities | 18.6 W/cm^2 |
| Maximum Watt Densities | 120 W/in^2 |
| Description | Information |
|---|---|
| Material | Stainless Steel |
| Maximum Operating Temperature – C | 650 ºC |
| Maximum Operating Temperature – F | 1200 ºF |
| Maximum Watt Densities | 18.6 W/cm^2 |
| Maximum Watt Densities | 120 W/in^2 |
| Description | Information |
|---|---|
| Material | Steel |
| Maximum Operating Temperature – C | 400 ºC |
| Maximum Operating Temperature – F | 750 ºF |
| Maximum Watt Densities | 18.6 W/cm^2 |
| Maximum Watt Densities | 120 W/in^2 |
