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Flange Immersion Heaters & CSA Listed Explosion Proof/Hazardous Area, Nema 7 Flanged Immersion Heaters-For Industrial ApplicationsFlanged Immersion Heaters (Custom Flanges) - Description Review:ANSI round flange and non ANSI square flange models in reference to flanged immersion heaters are often the right choice for most applications requiring higher wattages like the heating of water, oil and rinsing tanks. These custom flanged Immersion heaters are designed to install into a pipe body, pressure vessel or a tank using any standard pipe size. Most custom fabricated flanged immersion heaters are available in various flange sizes and sheath materials suitable for the heating requirements of water, air, gas and other liquids/substances. Also available with a wide selection of pressure rates/ranges and for hazardous or explosion proof environments. If you are looking for efficient heaters then go with flanged immersion heaters since all energy generated is transferred directly into the heated medium.Construction of custom fabricated flange/flanged immersion heaters incorporates tubular heater design which are either welded or brazed into a ANSI carbon steel pipe flange. General purpose (NEMA 1) termina/electricall enclosures come with all standard units. Also available in moisture resistant (NEMA 4) and explosion proof/hazardous area (NEMA 7) models. Titanium, Incoloy, Stainless Steel, Steel, and Copper sheath materials can be used as required for all custom and customer specific applications.
The most common or standard flanged immersion heaters come with 150 lbs flanges, however, other flange pressure ratings like 300 lbs and 600 lbs flanges are also available. To determine applicable watt density and proper sheath materials to be chosen for your application consult NPH. Our flanged and hazardous area/explosion proof immersion heaters are CSA/NRTL and UL recognized Construction-Custom Flanged Immersion Heaters:Custom Flanged Immersion Heaters: Specifications, Installation,Maintenance and Operation Guide, Technical Letters & Tips:![]()
Standard Flanged Immersion Heaters-Construction Features:Elements Materials - Copper, Steel, 304/316 Stainless Steel, IncoloyNumber of Elements in Flanges - 3, 6, 9, 12, 18, 21, 27, 36, 45 plus Element Diameter - 0.315" – 0.430" Watt Density - 6.5, 15, 23, 45, 75W/in2 Flange - Materials - Carbon Steel, Stainless Steel,
Flange Rating - 150 lb. Pressure Class per ANSI B16.5 Flange Sizes - 3", 5", 6", 8" 10", 12", 14", 150 lb. Our Flanged Immersion Heaters offer Highly Conductive Tubular Heating Elements - NPH custom flanged immersion heater elements use the purest blends of magnesium oxide (MgO) powder. In addition this refractory is compacted to a rock hard like density. This is important because it ensures (i) maximum thermal conduction and (ii) maximum electrical resistance, promoting long coil/resistance wire life. NPH Flanged Immersion Heaters offer Heavy Coil Construction - Heating coils are designed for low watt density operation. This is accomplished by increasing the coil diameter and length and thereby increasing the surface area of the coil, limiting the surface temperature of the resitance wire yielding longer coil and therfore heater life. Common Industrial Process Heater Terminal Enclosure Types - See Images Below:
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