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Industrial Process Electric Heaters - Products
Flanged Immersion Heaters
Screw-Plug Heaters
Duct Heaters
Circulation Heaters
Over-the-Side Heaters
Finned Tubular Heaters
Pipe Insert Heaters
Tubular Heaters and Elements
Temperature/Power Control Panels
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Finned Tubular Heaters:
PRODUCT DESCRIPTION
Finned
Tubular Heaters are normally used in forced circulation heating of low
temperature air, other atmospheres and gases. Typical applications include
forced convection heating of air, process atmospheres, and oven atmospheres in
duct environments. Steel finned tubular heaters are standard with surface
temperatures limited to about 425ºC (797ºF) compared to 815ºC (1500ºF) for an
alloy sheathed non-finned heater. Some applications require
stainless steel materials for corrosion resistance. The most efficient finned
heaters are made with steel sheath and steel fins. Steel is normally used for
air heating, stainless steel for atmospheres which are humid or corrosive and
monel for salt-laden humid atmospheres. Keep in mind that stainless heaters
with stainless fins are very inefficient since the heat transfer rate of
stainless is less than one quarter that for steel. Finned Tubular Heaters
offer distinct advantages over open coil heaters: (a) they are safer to operate
in that the risk of fire or electrical shock are minimized; (b) they have a
much longer service life; and (c) they are more rugged requiring less
maintenance than open coil heaters. We offer a standard
carbon steel construction and a high temperature/ corrosion resistant stainless
steel construction. As with regular tubular elements, they can be bent to a
number of shapes and are available with fittings and mounting brackets as
required. Typical Applications Wattage Required to Heat Air
Flows: http://www.nphheaters.com/quote/industrial_process_heaters/wattage_required.pdf To Order Finned Tubular Heaters
Please Specify:
Bend Formations Below:
NPH Tubular Heater Bend Formations.pdf
Telephone: 905-859-8225
Facsimile: 905-859-4691 Toll Free:
1-877-674-9744 Our industrial process electric heaters consist of the
following product categories: flanged
immersion heaters, screw-plug immersion heaters, over-the-side heaters,
circulation heaters, duct or
air process heaters, pipe insert heaters, tubular heaters ,
finned tubular heaters and Temperature
Control Power Panels. Industrial process heaters are available with adjustable thermostats, digital temperature controls;
SCR, mercury relay or mechanical temperature control power panels with process and high limit thermocouples. Industrial process heaters from National Plastic Heater, Sensor and Control Inc. are Hydro approved
and CSA or C UL recognized. Terminal enclosures can be NEMA 1 (General Purpose), NEMA 4,
( Moisture resistant) NEMA 4X (Corrosion/Moisture Resistant), NEMA 7 (explosion proof) and NEMA 12
(Dust and Oil Resistant). Industrial heater sheath materials like Titanium, Incoloy, Stainless Steel, Steel, and Copper can be
used as required for specific applications. Standard Flanged Immersion Heaters have a 150 lbs flanges but
300, 600 and 1500 lbs flanges are also available. Below a brief description of most of our industrial process heaters line-up: Screw plug immersion heaters consist of hairpin bent tubular elements brazed or welded into a screw plug
and provided with terminal boxes for electrical connections. Screw plug immersion heaters are screwed directly through a threaded opening in a tank wall or through
matching pipe coupling, half coupling or welding flange. Circulation Heaters offer the following: High efficiency heat transfer, Pressure ratings to 600 lbs,
ANSI Standard NPT or ANSI Class 150 connections, Heaters could be screw plug or flanged, Stainless steel
construction with Canadian Vessel Registration, Various housing options available NEMA 4, 4X, explosion proof, Suitable for steam, oils, chemicals, gases, corrosive solutions. Over-the-side immersion heaters are designed for vessels where through the side immersion heaters cannot be
conveniently installed. These heaters are installed through the top of the vessel with the heated portion of the
unit along the side or at the bottom of the tank. NPH Tubular heaters can be used in their straight form or bent into various shapes. Tubular heaters can be used in free air, clamped to a surface, placed inside a groove or cast into metal. Finned tubular heaters offer distinct advantages over open coil heaters: (a) they are safer to operate in
that the risk of fire or electrical shock are minimized; (b) they have a much longer service life; and (c) they
are more rugged requiring less maintenance than open coil heaters. Duct heaters from National Plastic Heater are composed of, tubular, finned tubular or open coil heating elements
that are either flanged or inserted in the duct. Duct air heaters are generally an assembly of tubular heating
elements ready to mount into a duct but it can also be an open-coil resistance wire assembly mounted into a duct. Temperature Control Power Panels, for a wide variety of applications are designed and engineered by National
Plastic Heater, Sensor and Control Inc. Entire systems are available for the most complex process heating control
applications that require electric heaters, temperature controls, and temperature sensors. Control power panels
can be built with as little as one zone to as many as 36 or even more temperature control sensing points. |
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