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America Watlow electric heating tube

The core component of the electric boiler electric heating tube, and its main requirements are: reliable, automatic cleaning, do not burn, long life.
1. guarantees electric tube service life:
① nichrome alloy components
The INCO800 nichrome heat resistance up to 816 ° C, even if the scaling is not easy to burn out, high mechanical strength, corrosion resistance, chemical stability, is suitable for various water electric boiler.
② The optimal power density design
The basic parameters of the heating tube is the power density, it is per square inch electric wall heat transfer of power. Power density is too low, bring oversize electric tube furnace and boiler room covers an area of increased heating tube expansion is small, not easy to automatic cleaning affect the life span; high watt density, high temperature resistance wire tube also affect life expectancy. I am using the heating tube optimal power density design, both to ensure the life of the heating tube to ensure that its cleaning function. Its life expectancy is much higher than a similar level of the heating tube.
③ electrode structure
Nickel-chromium resistance wire welding on large diameter electric extreme, through the power of extreme and power connections, power extreme ensure that the beginning part of the electric tube flange plate 80mm long heating part, so that the junction temperature of the nickel-chromium wire low, to prevent the joints burn.
④ The U type tube design
Electric heating tube diameter 8mm, structure for U type tube design, smooth tube wall, between pipe and pipe have spacious space, not easy scaling, not easy to accumulation of impurities, the steam boiler, the pipe wall is not easy to accumulate" steam bag", which led to the joint burn.
U type tube structure permits free expansion, using optimal power density, U type tube has sufficient volume to scale expansion, not the result of scaling and burned-out electric heating tube.
⑤ high purity and high density magnesium oxide filler
The concentric configuration of the nickel-chromium resistance wire in the heating tube, between the resistance wire and the tube filled with high purity magnesium oxide powder insulation and heat transfer effects. The packing density of magnesium oxide on heating pipe work reliability is critical. High-density padding to ensure good insulation, heat evenly.
2, stainless steel flange connection
The stainless steel S304 sealing flange connection. Nichrome element allows a higher operating temperature of the heating tube, and thus the work is compact, the diameter of only 8mm, the flange size is only 2-1/2 "x 2-1/2", this will enable compact furnace, boiler room station area and small series of advantages. Replacement of electric tube flange size is small, the drum does not turn on the water situation, replacement of water.

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