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Screw Plug Immersion Heater - GRIN
Gaumer's newest screw-plug design incorporating stainless steel fittings and swedged cartridge heaters (1/2" NPT and 3/4" NPT).
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Watlow, a leading designer and manufacturer of heaters, controllers and temperature sensors, has added a miniature version cartridge heater to its existing line of FIREROD® cartridge heaters. The new 1/8-inch FIREROD cartridge heater features a unique swaged design, which maximizes heat transfer and allows for quicker response time. Additionally, its helically wound resistance wire produces higher watt densities and contributes to longer service life in space-restricted applications.
Applications
Medical
Analytical
Aerospace
Semiconductor
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Immersion heater with ceramic core element
These immersion heaters consist of a ceramic core heating element incorporated in a cylindrical sheath made of materials adapted to the heated fluid.
This arrangement offers many advantages :
- A wide choice of materials for the sheath : steel, all stainless steel, titanium, pyrex®, teflon®, etc.
- A low watt density for "fragile" fluids.
- A wide tolerance to the clogging of the heating circuits.
- The possibility of replacing the heater without having to empty the container.
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Watlow's mica and 375 strip heaters are the versatile solution for a number of applications. They can be bolted or clamped to a solid surface for freeze and moisture protection, food warming and other applications. The 375 finned strip heaters are commonly used for air heating, drying ovens and space heaters.
Applications
Dies and molds
Tank and platen heating
Thermoforming
Packaging and sealing equipment
Ovens
Food warming equipment
Vulcanizing presses
Duct, space and air heaters
Incubators
Autoclaves
Freeze and moisture protection
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Hairpin or "U" shaped element used to heat liquids, air and solids.
Applications
Used for heating liquids, air and solids, limited only by the space available and the general limitations concerning maximum sheath temperature and watt density.
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Heatflon® Serie PH 1 - 9
Heatflon® heaters of the PH series consist of a stainless steel tubular radiator sheated in PFA. The head of the heater is made of PTFE and the connecting cable of PFA. Heating zone, head and connecting cable are welded together watertightly as a result a complete immersion in aggresive media is possible.
All devices of the PH series are earthed and approved by association of German engieers (VDE).
As an optional extra, all heaters can also be pre-equipped for a thermal monitoring. Users who purchase a special controller are then able to monitor the internal temperature between the stainless steel heater and the PFA tube, thereby reducing substantially the risk of fire. Heatflon® tubular radiators of the PH series are available for various surface loads, eg:
2,2 W/cm² - 1,5 W/cm² - 1,0 W/cm², applicable dependent on the specific media.
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Watlow's WATROD tubular heater elements and flat FIREBAR elements are designed primarily for direct immersion in liquids such as water, oils, solvents and process solutions, molten materials as well as air and gases. By generating all the heat within the liquid or process, these heaters are virtually 100 percent energy efficient. These versatile heaters can also be formed and shaped into various geometries for radiant heating and contact surface heating applications. UL® and CSA component recognized elements available.
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Applications:
These can be fabricated for use in warming tables, cabinets heaters, cooling tables, heating plates for form carriers or even radiating heaters for household use.
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U.L. Recognized - E56973 C.S.A. Certified - 016386-0-000
Applications:
Cylinders, Dies, Drums, Holding Tanks, Injections and Blow Molding Machines, and Plastic Extruders.
Features:
-The Hotwatt Standard Band Heaters are manufactured in one or two piece constructions with maximum inside diameters of 11 1/2" and 22 1/2" respectively. Three or more sections are employed when heaters of larger diameters are needed (as for blown film extrusion dies).
-Holes and cutouts are available. Maximum wattage may be reduced with the addition of holes and cutouts. Drawing required for specific location.
-Made in U.S.A
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Band heaters grip tightly to cylindrical surfaces to supply uniform heat transfer. Chromalox band heaters come in one or two-piece construction for easy installation and removal. Stainless steel braids and conduit protect terminations and resist contamination.
Application Guidelines
500 – 5,000 Watts
120 – 600 Volt
Chrome Steel and INCOLOY® Sheaths
Maximum Temperature: 1500°F
Watt Density: Up to 50 W/In2
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Calor cartridges
Modular conception
Ceramic cartridge heater
Several fixings and terminal casings
Tubes available in steel, stainless steel or titanium
Power from 0,5 kW to 9,5 kW
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U.L. Recognized - E56973 C.S.A. Certified - LR-16386
Applications:Compressor Crankcase Heating, Copiers, Dies, Food Processing, Glue Pots, Heat Sealing, Hot Melt Adhesive, Labeling, Medical Equipment, Packaging, Photographic Processing, Plastic Molding, Platens, Wax Pots.
-Hotwatt Precision Cartridge Heaters provide localized heat to restricted work areas requiring close thermal control. Dies, Platens, and a variety of other types of processing equipment are efficiently heated. Closely controlled work temperatures up to 1250°F are obtained by a combination of heater location and proper wattage output.
-Basic designs are readily adaptable to a wide variety of special requirements, sizes, or ratings.
-Maximum surface temperatures up to 1250°F.
-Designations are etched on the sheath to preserve accurate shape.
-Heating elements arranged just beneath outside surface for maximum heat transfer, minimum core temperature and faster heating.
-Made in U.S.A.
-Where specified, units can be supplied liquid tight.
-Long, trouble free service.
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Vulstar® cartridges are used to heat metal like moulds, dies, plates and bolts or liquid.
Supply voltage up to 450 V 1P or 3P.
Load up to 40 W/cm2.
Length from 25 mm to 2500 mm depending on diameter.
Diameter from 6,35 mm (1/4") up to 31,8 mm (2" 1/4).
Different types of connection to fit with the ambient temperature.
This cartridges can be provided with a thermocouple .
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Slectionnez une ligne du tableau ci-dessous :
L (mm) A (mm) P (230 V) (W)
1 300 45 255
2 350 45 305
3 400 45 355
4 450 45 405
5 500 45 455
6 550 45 505
7 600 45 555
8 700 45 655
9 800 45 755
10 900 45 855
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Type : Material : Hardness : Surface Treatment RoHS CAD Data
MCHZ 304 Stainless Steel - - Compliant
MCHZA 304 Stainless Steel - - Compliant
MCHZB 304 Stainless Steel - - Compliant
MCHZC 304 Stainless Steel - - Compliant
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OZARK extrudes insulators from MgO, Al2O3, and HfO2 for use in production of mineral insulated thermocouple cable, cartridge heaters, and other high temperature and electrical applications. Extrusion is a ceramic manufacturing technique which produces any shape with a constant cross section and theoretically
unlimited length. A mix containing the desired ceramic powder and various organic additives is forced through a die opening configured to give the required geometry which may include holes of precise shape and size. The extrudate is subsequently dried, fired, cut, inspected and packaged for shipment. Precise control of process variables is required to obtain high quality extrusions meeting purity, microstructural, and dimensional specifications.
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Applications:
Air Heating, Air Ovens, Load Banks
U.L. Recognized - E56973 C.S.A. Certified - 016386-0-000
Construction:
-Seamless stainless steel sheath
-Post terminals
-Ceramic element support
-Element wire is situated in close proximity to outside surface for maximum heat transfer and minimum internal temperature while preserving good dielectric qualities.
-Magnesium oxide packing
-Aluminum fins offering maximum radiating surface and providing for rapid heat transfer to the surrounding medium. Stainless steel fins are available for corrosive environments.
Aluminum fins are standard.
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Ideal for generating steam and heating gases and liquids in pressure vessels and tanks, flanged immersion heaters are hairpin-bent tubular elements welded or brazed into a flange and provided with electrical enclosures. Chromalox flanged immersion heaters are available in a wide selection of flange sizes and with a variety of electrical enclosures. Most units are UL-listed and CSA-certified or can have ATEX certification. ASME or PED code construction is also available for high-pressure applications. Chromalox can also rebuild large flanged heaters to save you money. Many models in stock.
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Teflon® heaters/ Galvatek flat heaters
ASSEMBLY TYPE F
Standard : heating cable insulated with Teflon® FEP
PP or PVDF rod frame
Non heating cable position either on the small side (J) or on the large one (K)
Power from 0,5 kW to 15 kW
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Tubular heating elements are versatile and transfer heat exceptionally well by conduction, convection, or radiant heating to heat liquids, air, gases, and surfaces. Round, triangular, flat press, and formed bends are made to customer requirements. A multitude of sheath materials are available. More than 20 optimal terminations and many stocked accessories are available. Can be furnished as UL-listed and CSA-certified. VDE and CE certification also available.
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Applications:
Dies, Heat Sealing, Hot Melt Adhesive, Plastic Molding, Platens, Shoe Machinery.
U.L. Recognized - E56973 C.S.A. Certified - 016386-0-000
Features :
-Elements are designed for maximum: Watt density, temperature, heat transfer, and heater life.
-The useful life of a cartridge heating element is determined by how quickly the heat generated in the resistance
wire can be dissipated to the outside sheath. With low and moderate watt density elements, such as Hotwatt's
standard line, the conventional method of inserting helical coils in formed ceramics is an entirely satisfactory
method of construction because the wire temperature relative to sheath temperature even though considerably
higher, is still well within safe long-life operating temperatures.
-The Superwatt cartridge heater accelerates the transfer of heat from the resistance wire to the sheath. This is
accomplished by relocating the wire so that it is closer to the sheath; and swaging the outside diameter of the
heater, thereby compressing the magnesium oxide filler so that it becomes an improved conductor of heat from
the wire while maintaining its dielectric properties. (See diagram below). By improving the heat transfer rate, it
is possible to manufacture elements of higher densities because the differential between the wire temperature
and the sheath temperature has been minimized.
-Long, trouble free service.
-Made in U.S.A.
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Teflon® heaters / Galvatek cylindrical heaters
ASSEMBLY TYPE R
Ideally suited to all installations on the side of the tank.
Standard : heating cable insulated with Teflon® FEP
Structure materials : PP or PVDF
Power from 0,5 kW to 15 kW
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U.L. Recognized - E56973 C.S.A. Certified - 16386-0-000
-The Hotwatt Immersion Heater may be supplied with various junction boxes for additional terminal or lead protection.
-For corrosive environments, units can be supplied in other special alloys best suited to the operating conditions.
-The lead end of the unit may be sealed for extreme environmental conditions.
-Units may be supplied for three phase or three heat operation.
Made in U.S.A.
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Electric immersion heaters are especially suitable for heating fluids via natural or forced convection. They are mainly used for water heaters, heating tanks and for fluid circulation heaters.
Depending on the application, they exist in different materials.
Their layout of heating elements allows an optimum heat exchange.
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Heaters with built-in regulation / Control-Therm
A complete device combining heating and regulation
Standard : heating cable insulated with Teflon® FEP
Structure materials : PP or PVDF or PP/PVDF
Control range 0 °C to 90°C
Temperature settings in the terminal casing
From 0,5 kW to 3 kW single-phase
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Applications
Dies, Heat Sealing, Hot Melt Adhesive, Plastic Molding, Platens, Shoe Machinery.
U.L. Recognized - E56973 C.S.A. Certified - 016386-0-000
Features
Elements are designed for maximum: Watt density, temperature, heat transfer, and heater life.
The useful life of a cartridge heating element is determined by how quickly the heat generated in the resistance
wire can be dissipated to the outside sheath. With low and moderate watt density elements, such as Hotwatt's
standard line, the conventional method of inserting helical coils in formed ceramics is an entirely satisfactory
method of construction because the wire temperature relative to sheath temperature even though considerably
higher, is still well within safe long-life operating temperatures.
The Superwatt cartridge heater accelerates the transfer of heat from the resistance wire to the sheath. This is
accomplished by relocating the wire so that it is closer to the sheath; and swaging the outside diameter of the
heater, thereby compressing the magnesium oxide filler so that it becomes an improved conductor of heat from
the wire while maintaining its dielectric properties. (See diagram below). By improving the heat transfer rate, it
is possible to manufacture elements of higher densities because the differential between the wire temperature
and the sheath temperature has been minimized.
Long, trouble free service.
Made in U.S.A.
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U.L. Recognized - E56973 C.S.A. Certified - 016386-0-000
The Hotwatt Square and Rectangular Cartridge Heater is designed to distribute maximum heat within a desired area. Because they are completely enclosed, square units will furnish more usable heat for a given wattage than a comparable strip heater attached to the exterior of a mod, platen, or other equipment.
The units are inserted in a milled slot, permitting greater lengths than would be feasible with a drilled or reamed hole. Close dimensional tolerances are held to permit intimate fit for best heat transfer to surrounding medium.
Heating elements arranged just beneath outside surface for maximum heat transfer, minimum wire temperature, and faster heating.
Maximum surface temperatures up to 1200°F. Designations are etched on the sheath to preserve accurate shape.
Long, trouble free service.
Made in U.S.A.
Construction:
-Sealed end.
-Mica.
-Series 300 stainless steel sheath for non-oxidizing, stable service in cavities machined for them.
-Element wire situated in close proximity to outside surface for maximum heat transfer, minimum wire temperature, and faster heating.
-Magnesium oxide packing.
-Ceramic element support.
-Teflon insulated leads: 1/4" square.
Fiberglass insulated leads: 3/8" to 1/2" square, 1/4" x 5/8" and 1/4" x 1" rectangular.
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Other heaters / Rotkappe heaters
Rotkappe : other materials
Tubes available with a small or a large diameter
Stainless-steel tube coated with hard porcelain (PS) or technical glass (TG) or stainless steel (KB) or titanium (TI)
Also available in PTFE
The tube coating is to be chosen according the chemicals heated. Please consult us.
Standard range : from 0,4 kW to 7 kW
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U.L. Recognized - E56973 C.S.A. Certified - LR-16386
Features:
-The Hotwatt Stainless Steel Strip Heater provides clean, dependable heat with sheath temperatures up to 1200°F and watt densities up to 40 watts per square inch.
-Because of the seamless stainless steel sheath, Hotwatt Ceramic Insulated Strip Heaters are dimensionally stable in milled slots.
Applications:Dies, Molds, Plastic Forming and Sealing, Tank and Kettle Heating. For specific applications, correctly rated elements should be used to prevent overheating and to ensure long life. A guide to correct watt densities for specific applications is shown below.
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