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NATIONAL PLASTIC HEATER, SENSOR & CONTROL INC. Industrial Process Heating, Temperature Sensing & Control Technology For Industry |
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Flange Immersion Heaters & CSA Listed Explosion Proof/Hazardous Area, Nema 7 Flanged Immersion Heaters-For Industrial Applications
Hazardous Area/Explosion Proof Flanged Heaters & Custom Flanged Immersion Heaters
Flanged 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
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:
Standard and Custom Flanged Immersion Heaters-Construction Components
Custom Flanged Immersion Heaters: Specifications, Installation,
Maintenance and Operation Guide, Technical Letters & Tips:
Customer Response Questionare Form-Industrial Immersion Heaters.pdf
- Hot Water Storage Tanks
- CSA Listed Explosion Proof/Hazardous Area Heaters
- All Oil Grades
- Equipment for Food Processing
- Heat Transfer Systems
- Cleaning/Rinsing Tanks
- Equipment for Process Air
- Boiler Equipment
- Freeze Protection of Fluids
- Application for Petro Chemical
- Oil Heating Loops
- Water/Recycling and Sewage Processing Application
- Purification & Caustic Solutions
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.
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:
NEMA 1 -3"-150 LB ANSI Flanged Heater, General Purpose Enclosure |
NEMA 4 -3"-150 LB ANSI Flanged Heater, Moisture Resistant Enclosure |
NEMA 1 -4"-150 LB ANSI Flanged Heater, General Purpose Enclosure |
NEMA 4 -4"-150 LB ANSI Flanged Heater, Moisture Resistant Enclosure |
NEMA 1 -5"-150 LB ANSI Flanged Heater, General Purpose Enclosure |
NEMA 4 -5"-150 LB ANSI Flanged Heater, Moisture Resistant |
NEMA 1 -6"-150 LB ANSI Flanged Heater, General Purpose Enclosure |
NEMA 4 -6"-150 LB ANSI Flanged Heater, Moisture Resistant |
NEMA 1 -8"-150 LB ANSI Flanged Heater, General Purpose Enclosure |
NEMA 4 -8"-150 LB ANSI Flanged Heater, Moisture Resistant |
NEMA 7 -5"-150 LB ANSI Flanged Heater, Hazardous Location Enclosure |
NEMA 7 -6"-150 LB ANSI Flanged Heater, Hazardous Location |
NEMA 7 -8"-150 LB ANSI Flanged Heater, Hazardous Location |
Non Ansi Flanges-Boiler and Thermolator Immersion -Round Flange-Available in Various Diameters-6 Elements |
Non Ansi Flanges-Boiler and Thermolator Immersion -Round Flange-Available in Various Diameters-3 Elements |
Non Ansi Flanges-Boiler and Thermolator Immersion -Square Flange-Available in Various Diameters-6 Elements |
Non Ansi Flanges-Boiler and Thermolator Immersion -Square Flange-Available in Various Diameters-3 Elements |
Safe operation of heaters (including explosion proof/hazardous areas) equipped with these enclosures depends on employment of electrical wiring meeting National Electric Code and limiting maximum operating temperatures (including temperatures on outside of vessel, piping, flanges, screw-plugs, enclosures and other heat conducting parts) as dictated by flammable liquids, vapors, or gases present. Approved pressure and/or temperature limiting controls must be used to assure safe operation in the event of system malfunction.
Common Flanged Immersion Heaters-Nema Enclosure Types–See Below:
NEMA 1- General purpose, sheet metal, painted with enamel. NEMA 4- Moisture Resistant. These enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and windblown dust); to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (rain, sleet, snow, splashing water, and hose directed water); and that will be undamaged by the external formation of ice on the enclosure. NEMA 4X- Enclosures are primarily intended for indoor/outdoor use and offer a superior level of protection from corrosion and extreme environments. Provide a degree of protection against windblown dust and rain, splashing water, hose directed water, and damage from external ice formation. NEMA 7- Explosion Proof Enclosures are designed to contain an internal explosion without causing an external hazard. These enclosures are intended for indoor use in hazardous locations classified as Class I, Division I, Groups A,B,C, or D.Grounding Connector Standard - A solid terminal connector is standard on all NPH immersion heaters insuring positive ground and personal safety.
Special Flanged Immersion Heaters-Features Available:
Kilowatt Ratings - 500 KW and above availableFlanges:
Materials - 316, 321, 347 stainless steel. Inconel, IncoloyRatings - 300 lb. up to 2500 lb., pressure classes available
Sizes - 10" , 12", 14", 16", and 18" available. Please contact NPH for other materials or ratings.
Elements Materials - 316, 321, 347 stainless steel. Inconel. Other materials available, please contact NPH
Other Features - ASME Sections I, IV, and VIII designed and certified. Baffles on elements to distribute flow. Passivation on stainless steel. Immersion lengths up to 240". Underwriters Laboratories U.L./CSA listing available. Consult NPH.
National Plastic Heater Corrosion Policy:
NPH does not warrant any of its flanged immersion heaters against damage from corrosion, contamination, misapplication, improper specification or operating conditions beyond our control. NPH will suggest/recommend sheath materials and watt densities from time to time however, it is the responsibility of the purchaser and his engineer to make the ultimate choice of sheath material based on his knowledge of chemical composition of corrosive solution, character of materials entering the solution, and controls which he maintains on the process. Further, since NPH has no control over the use and sometimes misuse of the heaters, we cannot guarantee against burnouts.
How To Order Flanged Immersion Heaters
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| Flange Size and Number of Elements | Select Flange Size and Number of Elements3" Flange=7.5" Flange diameter with 3 elements in flange3" Flange with 6 elements in flange4" Flange=9" Flange diameter with 6 elements in flange4" Flange with 9 elements in flange5" Flange=10" Flange diameter with 6 elements in flange5" Flange with 9 elements in flange6" Flange=11" Flange diameter with 12 elements in flange6" Flange with 15 elements in flange8" Flange=13.5" Flange diameter with 18 elements in flange8" Flange with 21 elements in flange8" Flange with 24 elements in flange8" Flange with 27 elements in flange | ||
| Pressure Class | Select Pressure Class150lbs. pressure class300lbs. pressure class600lbs. pressure class1500lbs. pressure class | ||
| Flange Materials | Select Flange MaterialsCarbon Steel304/316 Stainless SteelTitanium | ||
| Sheath Material | Select Sheath MaterialCopper sheathIncoloy sheathSteel sheath304/316 Stainless Steel sheathTitanium sheath | ||
| Enclosure Type | Select Enclosure TypeNema1-General purpose enclosureNema4-Water tight & dust tightNema4x-Water tight, dust tight & corrosion resistantNema7-Explosiong proof, hazardous class1 | ||
| "B" Dimension Immersed length |
Wattage (kw) | Select Wattage4.5kw6kw7.5kw9kw10.5kw12kw15kw18kw21kw22.5kw24kw30kw36kw45kwother | |
| Voltage | Select Voltage120V240V480V600V | Phase | Select Phasesingle phasethree phase |
| Thermostat | Select Thermostatyes-10-120ºCno thermostat | Thermowell | Select Thermowellyesno |
| High Limit Thermocouple | Select High Limit T/Cyes-type "J"no T/C | Quantity | Select Quantity36122450100250500other |
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