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MI mineral insulated heating cable
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MI mineral insulated heating cable
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- Description
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- Commodity name: MI mineral insulated heating cable
MI mineral insulated heating cable is made of single or multiple alloy electric wire as heat source, high purity, high temperature, electrofusion crystalline magnesium oxide as heat conductive insulator, seamless continuous stainless steel or copper pipe as sheath, manufactured by special production process. There is a strong corrosive effect of the place can be added PE or low-smoke halogen-free jacket. Its advantage is that it has excellent mechanical strength and corrosion resistance.
► Product Structure
Heating wire core: nickel-chromium alloy, Inconel 600, pure nickel, 310S or 310H;
Insulation layer material: high-purity magnesium oxide powder (MgO), aluminum oxide powder (Al2O3) or silicon oxide powder (SiO2);
Outer sheath material: 304L, 321, 316L, 310S, 310H, Inconel 600 or 825 alloy.
► Product model meaning
► Technical Parameters
► Product Categories
1. 825 alloy sheathed mineral insulated heating cable
Alloy 825 Sheathed Armored Heating Cable is a metal sheathed, mineral insulated (MI) cable designed to provide heating solutions for applications in a variety of industries. MI heating cables are typically used when high power output, exposure to high temperatures, or extreme resistance to environmental corrosion are required.
Typical applications include: pipeline antifreeze, process temperature maintenance, long-line heating
Alloy 825 MI electric heating cable can meet the needs of high temperature heating and high power (up to 269W/m) under certified regional classification and design. Its maximum withstand temperature can reach 800℃, and the conductor resistance ranges from 28000-19.2Ω/km.
2. Copper-nickel sheathed mineral insulated heating cable
Copper-nickel alloy sheathed mineral insulated heating cable can meet the needs of high temperature conditions and long-distance pipeline heating. Its maximum withstand temperature can reach 450℃, the conductor resistance range is from 28000-19.2Ω/km, and it has excellent mechanical strength and corrosion resistance.
3. Copper sheathed mineral insulated heating cable
Copper sheathed mineral insulated heating cables can meet the needs of high temperature conditions and long-distance pipeline heating. The maximum withstand temperature of copper sheathed heating cables can reach 250°C, and the conductor resistance ranges from 480-0.5Ω/km. For occasions requiring corrosion protection or buried applications, high-density polyethylene HDPE outer sheath (MIHC) is required, and the maximum withstand temperature of MIHC can reach 90°C.
4. Stainless steel sheathed mineral insulated heating cable
Mineral insulated (MI) heating cable stainless steel sheath series mineral insulated heating cable can meet the needs of high temperature conditions and large heating power (up to 269W/m). The high-endurance temperature of stainless steel sheath heating cable can reach 600℃, and the conductor resistance value ranges from 28000-19.2Ω/km. Mineral insulated cable has excellent mechanical strength and corrosion resistance.
5. H600 alloy sheathed mineral insulated heating cable
YMI mineral insulated heating cable H600 alloy sheath series mineral insulated heating cable can meet the needs of high temperature conditions and large heating power (up to 269W/m). The maximum withstand temperature of H600 alloy sheath heating cable can reach 800℃, and the conductor resistance value ranges from 28000-19.2Ω/km. Mineral insulated cable has excellent mechanical strength and corrosion resistance.
6. HDPE mineral insulated heating cable
HDPE sheathed mineral insulated heating cable can meet the needs of long-distance pipeline heating. Its maximum withstand temperature can reach 90℃, and the maximum maintenance temperature can reach 65℃. It has excellent mechanical strength and corrosion resistance.
► Product Features
1. The maximum temperature limit of the heating cable itself is the maximum temperature that the core and the metal outer sheath can withstand. The maximum temperature that can withstand is 800℃.
2. The insulation layer is magnesium oxide, and the core and sheath are made of metal, which fundamentally solves the aging problem and extends the service life of the cable to the greatest extent. It can be used for decades under specified conditions.
3. The product adopts different outer sleeves to resist the corrosion of oils, solvents and most acids. It has good chemical stability, resistance to solar radiation and nuclear radiation.
4. Good mechanical properties, due to its strong structure, it can withstand twisting, extrusion, bending, pulling, friction and general rough handling.
5. It adopts series resistance type electric heating element, so the heat is even, the temperature difference of the whole length is very small, and the heating power is large, generally between 20~300W/m.
6. The heating power is large, generally above 50W/m. The cable is not in danger of freezing due to the stop of steam supply like the steam heating pipeline. Just turn on the power when needed.
7. Resistant to low temperatures, easy to construct and maintain in winter.
8. Since the heating cable is made entirely of non-combustible inorganic substances, the product is fireproof, flame retardant, does not release toxic gases, and has zero combustion energy. It is more energy-saving and environmentally friendly.
9. The metal sheath has excellent explosion-proof and electromagnetic shielding properties and can also serve as a grounding loop.
10. Mineral insulated heating cables are prohibited from being crossed or overlapped during installation. MI cold end connectors are prohibited from being bent, and the cold end and junction box should be placed outside the insulation layer.
11. High mechanical strength
High-strength metal tube is used as the sheath, which forms a dense whole with the conductor and mineral insulating powder during the processing. It has a solid structure, high mechanical strength, and is resistant to mechanical extrusion and bending.
12. Stable physical and chemical properties
The constituent materials are all inorganic materials with good thermal stability. When used at rated temperature and set environment, their mechanical, physical and chemical properties such as structure, conductivity, dielectric strength and chemical composition are quite stable.
13. Small temperature difference between inside and outside
The thermal resistance coefficient of magnesium oxide insulation is 3-5 times smaller than that of most organic insulation materials. The smaller thermal resistance can rapidly transfer heat from the internal conductor to the metal sheath, so the temperature difference between the conductor and the sheath surface is very small, allowing a larger current density.
14. High electric-heat conversion efficiency
Using the thermal effect principle of electric current (Joule-Lenz law), pure resistance heating can convert almost 100% of electrical energy into heat energy.
15. Convenient electrical control
The working voltage is 50-60HZ industrial frequency power supply. ON/OFF or PID temperature control can be selected according to actual needs. It has mature technology, reliable operation and low maintenance.
16. Corrosion resistance
The best corrosion resistance can be achieved by selecting appropriate metal sheath materials according to the temperature of the operating environment and the corrosive medium.
17. Radiation resistance
The inorganic materials used have good radiation resistance. Literature shows that when this type of cable operates at 200℃-700℃ and a neutron flux of 1021 neutrons/cm2, its technical performance does not actually change, and it can be used in the core radiation area of a nuclear power plant.
► Applications
Chemical Industry
Heating or tracing of process pipelines, accessories and pumps;
Heating or tracing heat for reactors, cracking furnaces, vaporizers, flash evaporators, storage tanks, storage tanks and other devices and containers.
Oil field
Heating or tracing of Christmas trees, crude oil technical pipelines, valves, oil pumps, storage tanks and related processing equipment;
Increase temperature and reduce viscosity of heavy oil wellbore;
Wax prevention and plugging removal for oil and gas wells.
Metallurgical industry
Heating or tracing of chemical pipelines, storage tanks, etc.;
Coal-fired dust hopper heating.
Power Station
Oil-fired power plants: oil pipelines, container oil supply heating and tracing;
Hydropower station: pipeline antifreeze heating and heating;
Nuclear power plant: heating or tracing of pipelines, valves, pumps, storage tanks, etc. of various systems, preheating of reactor sodium loop;
Solar thermal power station: heating and tracing of lava pipes and accessories, lava pumps, collectors, storage tanks, etc.
natural gas
Vaporization heat compensation for gas stations;
Gas tank water seal heating;
Catalytic reaction heating;
Heating or tracing of natural gas product pipelines and related accessories and devices, etc.
Construction sector
Rapid drying of cement, pre-drying and heating of refractory bricks;
Floor heating for residential and industrial buildings;
Melting ice and snow on the roof reduces load;
Gutters and downpipes are heated to prevent ice and blockage.
Shipbuilding
Anti-condensation heating for decks and cabins;
Heating or tracing water, steam pipelines and related equipment.
Horticulture
Winter heating for greenhouse crops;
Protect the greenhouse from ice and snow;
Heating to promote seed growth;
Lawn maintenance and insulation.
Road and transportation
Road, ramp, sidewalk, steps, bridge and tunnel pavement ice and snow melting and anti-skid heating;
Melting ice and snow and heating for sports fields, airport runways, and helipads;
Antifreeze of railway switches, melting of ice columns on tunnel domes and heating of ice and snow melting on open-air platforms.
► Application Cases
Chemical pipeline valve insulation and heating project
Melamine pipe insulation and heating project 
Xinjiang oil storage tank insulation and heating project
Urumqi oil tank insulation and heating project 
Power plant ash hopper insulation and heating project Inner Mongolia chemical storage tank heating and temperature maintenance project
Key words:- MI mineral insulated heating cable
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