Mineral Insulated Heating Element for Heating Solution of Crude Oil Industry is designed and fabricated heating element for the solutions to the problems in the oil industry including on heating or heat tracing for trees, crude oil pipelines, valves, oil pumps, storage tanks and related treatment devices; heavy oil wellbore heating and viscosity reduction; oil and gas wells' paraffin plugging prevention.
Mineral insulation Heating Element is to be designed based on selection of mineral insulated heating cable which is prefabricated in the manufacturer's workshop into a heating element that can be directly connected to the power supply. It is usually composed of heating cables, cold and hot joints, cold end cables, terminals, tail ends and lead wires, etc. There are the following types can be selected from including type A, Type B, Type C, Type D, Type E, Type F and Type G structures. Among them, Type A, B and C are only suitable for single-core heating cable, while type D, E, F and G are only suitable for double-core heating cable. It can be widely used on heating or heat tracing of process conveying pipes and accessories, pumps, reactor, cracking furnace, carburetor, flash evaporator, storage tank, storage tank, other devices and vessels etc.
Common structure of the heating cable for the heating element is of single core and two core, while the customization can be according to clients’ needs to design and provide MI heating cable of three core or more.
The CML IEC Ex and ATEX explosion-proof certificates have granted for the mineral insulated heating cable products
.
Table 1 Heating Cable Specification (600V Single Conductor)
| Cable Code | Diameter | HDPE Diameter | Standard resistance value at +20℃ | Maximum Production Length | Unit weight |
| mm | mm | Ω/m | m | kg/km |
| 16C1.7 | 8.2 | 10 | 0.0017 | 350 | 366.54 |
| 16C2.2 | 7.6 | 9.4 | 0.0022 | 380 | 307.77 |
| 16C2.9 | 7.0 | 8.8 | 0.0029 | 400 | 264.45 |
| 16C4 | 5.9 | 7.7 | 0.004 | 600 | 190.88 |
| 16C7 | 5.3 | 7.1 | 0.007 | 600 | 154.08 |
| 16C11 | 4.9 | 6.7 | 0.011 | 600 | 132.25 |
| 16C13 | 4.6 | 6.4 | 0.013 | 600 (300)☆ | 125.7 |
| 16C17 | 4.6 | 6.4 | 0.017 | 600 (300)☆ | 117.16 |
| 16C21 | 4.6 | 6.4 | 0.021 | 600 (300)☆ | 111.9 |
| 16C25 | 3.7 | 5.5 | 0.025 | 600 (480)☆ | 68.83 |
| 16C33 | 3.7 | 5.5 | 0.033 | 600 (480)☆ | 63.76 |
| 16C40 | 3.4 | 5.2 | 0.04 | 600 (560)☆ | 58.87 |
| 16C63 | 3.2 | 5 | 0.063 | 600 | 51.47 |
| 16K80 | 6.8 | 8.6 | 0.08 | 370 (140)☆ | 254.18 |
| 16K100 | 5.2 | 7 | 0.1 | 450 (240)☆ | 162.11 |
| 16K140 | 4.9 | 6.7 | 0.14 | 600 (270)☆ | 122.55 |
| 16K197 | 4.45 | 6.25 | 0.197 | 600 (330)☆ | 111.32 |
| 16K220 | 4.5 | 6.3 | 0.22 | 600 (330)☆ | 102.89 |
| 16K315 | 4.3 | 6.1 | 0.315 | 600 (350)☆ | 91.44 |
| 16K345 | 4.2 | 6.0 | 0.345 | 600 (370)☆ | 85.9 |
| 16K450 | 4.0 | 5.8 | 0.45 | 600 (400)☆ | 80.73 |
| 16K630 | 4.0 | 5.8 | 0.63 | 600 (400)☆ | 77.26 |
| 16K800 | 3.5 | 5.3 | 0.8 | 600 (530)☆ | 61.48 |
| 16K1250 | 2.8 | 4.6 | 1.25 | 600 | 40.83 |
| 16K2000 | 2.8 | 4.6 | 2.0 | 600 | 38.96 |
Table 2 Heating Cable Specification (600V Double Cores)
| Cable Code | Diameter | Nominal resistance at +20℃ | Maximum manufacturing length | Unit weight |
| mm | Ω/m | m | kg/km |
| 26C3.4 | 12.9 | 0.0034 | 150 | 783.76 |
| 26C4.4 | 12.2 | 0.0044 | 160 | 701.56 |
| 26C5.8 | 11.3 | 0.0058 | 170 | 606.16 |
| 26C8.6 | 9.90 | 0.0086 | 180 | 451.43 |
| 26C11.4 | 9.30 | 0.0114 | 200 | 400.05 |
| 26C13.8 | 9.00 | 0.0138 | 210 | 375.20 |
| 26C17.2 | 8.60 | 0.0172 | 220 | 344.90 |
| 26C23 | 8.00 | 0.023 | 250 | 303.25 |
| 26C34.4 | 7.50 | 0.0344 | 280 | 269.20 |
| 26C49.2 | 7.10 | 0.0492 | 300 | 243.84 |
| 26K240 | 9.90 | 0.24 | 180 | 451.43 |
| 26K320 | 9.30 | 0.32 | 200 | 400.05 |
| 26K384 | 9.00 | 0.384 | 210 | 375.20 |
| 26K480 | 8.60 | 0.48 | 220 | 344.90 |
| 26K640 | 8.00 | 0.64 | 250 | 303.25 |
| 26K960 | 7.50 | 0.96 | 280 | 269.20 |
Table 3 Heating Cable Specification (300V Double Cores)
| Cable Code | Diameter | Nominal resistance at +20℃ | Maximum manufacturing length | Unit weight |
| mm | Ω/m | m | kg/km |
| 23C3.4 | 12.0 | 0.0034 | 200 | 708.10 |
| 23C4.4 | 11.3 | 0.0044 | 220 | 629.07 |
| 23C5.8 | 10.4 | 0.0058 | 240 | 537.73 |
| 23C8.6 | 9.00 | 0.0086 | 260 | 392.56 |
| 23C11.4 | 8.40 | 0.0114 | 280 | 343.89 |
| 23C13.8 | 8.00 | 0.0138 | 300 | 314.57 |
| 23C17.2 | 7.60 | 0.0172 | 320 | 286.27 |
| 23C23 | 7.10 | 0.023 | 340 | 252.98 |
| 23C34.4 | 6.60 | 0.0344 | 360 | 221.19 |
| 23C49.2 | 6.20 | 0.0492 | 380 | 197.64 |
| 23K160 | 10.4 | 0.16 | 220 | 508.37 |
| 23K240 | 9.00 | 0.24 | 240 | 392.56 |
| 23K320 | 8.40 | 0.32 | 265 | 343.89 |
| 23K384 | 8.00 | 0.384 | 280 | 314.57 |
| 23K480 | 7.70 | 0.48 | 300 | 291.91 |
| 23K640 | 7.10 | 0.64 | 320 | 252.98 |
| 23K960 | 6.50 | 0.96 | 350 | 216.11 |
Note: the resistance value of 2-core cable in the above table is the measured value after the ends are twisted (i.e., single-core resistance X2);
For the use of 660V voltage occasions, please contact our company professionals;
Mark of (300)☆ is a recommended production length by MICH
Table 4 terminal specifications
| | Model: A, D, E | Model: B | |
| Maximum Voltage(V) | Maximum Current (A) | Terminal Specification | Maximum Voltage(V) | Maximum Current (A) | Terminal Specification | Maximum Voltage(V) |
| | | | |
| 600 | 15 | E2 | 20 | E1 | 15 | E1 |
| 600 | 20 | E2 | 25 | E2 | 20 | E1 |
| 600 | 30 | E3 | 40 | E2 | 30 | E2 |
| 600 | 50 | E3 | 70 | E2 | 50 | E2 |
| 600 | 70 | E3 | 100 | E3 | 70 | E2 |
Note 1: E1 means 1/2 "NPT;E2 means 3/4 "NPT;E3 represents 1 "NPT (taper thread);Additional connection thread requirements are available.
Note 2: the length of cold end cable with standard configuration is 2 meters. If you increase or decrease of length required, please contact our professional personnel.
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