Screw plug immersion heaters utilize an NPT screw plug for direct immersion into liquids, oils, or other heat transfer mediums. These heaters utilize a rugged tubular heating element with sheath materials of copper, stainless steel, or Incoloy. The elements are formed and welded or brazed into the screw plug fitting for a liquid tight seal.
These heaters are available in 1-phase or 3-phase designs. The standard terminal enclosures are NEMA 1 for general purpose applications. Other terminal enclosures such as NEMA 4 for moisture resistance or NEMA 7 for explosion resistance are available.
In addition, these heaters can be provided with integral thermowells for thermostats or electronic temperature controls .
| Durex Industries | |
|---|---|
| Product Category | Electric Heaters |
| Product Number | MS201B-A40ON-7500 |
| Product Name | Screw Plug Immersion Heater |
| Heater Type | Explosion-proof Heater (optional feature); Immersion Heater |
| Maximum Operating (Sheath) Temperature | 750 F (399 C) |
| Heating Capacity | 7.50 kW (25.59 MBH) |
| Sleeve (Sheath) Material | Steel; Carpenter, Monel, Inconel, Hastelloy, Ti |
