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screw plug immersion heater
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Product Catalog
Screw Plug Immersion Heater
Our Screw Plug Immersion Heater is designed to provide reliable and efficient heating for a wide range of applications, including water, oils, and other liquids. Engineered for durability and high performance, this immersion heater is ideal for industries such as manufacturing, chemical processing, food and beverage, and more.
Application scope
Water tank heating
Boiler heating
Water tank heating
Air energy heating
Thermal oil furnace heating
Sandwich pot heating
Product Information
Product name: DN40/50 Screw Plug Immersion Heater
Rated voltage: 220V/380V
Power: 3-24KW
Water pressure test: 8kg without leakage
Pipe material: 304 stainless steel, copper, 316 green
Thread size: DN40=47MM, DN50=58MM
Scope of application: Applicable to electric heating auxiliary heating such as thermal oil boilers, solar energy, air energy, engineering water tanks, etc.
Note: If the purpose is special, you can contact customer service for customization
Product Specifications
| Model | Thread Size | Specification | Material | Pipe Diameter | Length |
| EKH-304-3KW-10 | DN40 (1.5″) | 220V/380V 3KW | 304 Stainless Steel | 10mm | 200mm |
| EKH-304-6KW-10 | DN40 (1.5″) | 220V/380V 6KW | 304 Stainless Steel | 10mm | 250mm |
| EKH-304-9KW-10 | DN40 (1.5″) | 220V/380V 9KW | 304 Stainless Steel | 10mm | 300mm |
| EKH-304-12KW-10 | DN40 (1.5″) | 220V/380V 12KW | 304 Stainless Steel | 10mm | 350mm |
| EKH-COP-3KW-10 | DN40 (1.5″) | 220V/380V 3KW | Copper | 10mm | 200mm |
| EKH-COP-6KW-10 | DN40 (1.5″) | 220V/380V 6KW | Copper | 10mm | 250mm |
| EKH-COP-9KW-10 | DN40 (1.5″) | 220V/380V 9KW | Copper | 10mm | 300mm |
| EKH-COP-12KW-10 | DN40 (1.5″) | 220V/380V 12KW | Copper | 10mm | 350mm |
| EKH-316-3KW-10 | DN40 (1.5″) | 220V/380V 3KW | 316 Green Treated | 10mm | 200mm |
| EKH-316-6KW-10 | DN40 (1.5″) | 220V/380V 6KW | 316 Green Treated | 10mm | 250mm |
| EKH-316-9KW-10 | DN40 (1.5″) | 220V/380V 9KW | 316 Green Treated | 10mm | 300mm |
| EKH-316-12KW-10 | DN40 (1.5″) | 220V/380V 12KW | 316 Green Treated | 10mm | 350mm |
| EKH-304-3KW-12 | DN50 (2″) | 220V/380V 3KW | 304 Stainless Steel | 12mm | 200mm |
| EKH-304-6KW-12 | DN50 (2″) | 220V/380V 6KW | 304 Stainless Steel | 12mm | 250mm |
| EKH-304-9KW-12 | DN50 (2″) | 220V/380V 9KW | 304 Stainless Steel | 12mm | 300mm |
| EKH-304-12KW-12 | DN50 (2″) | 220V/380V 12KW | 304 Stainless Steel | 12mm | 350mm |
Support non-standard customization
It can be customized according to customer requirements and drawings and can provide customers with thoughtful solutions
Our Custom Non-Standard Heating Elements are designed to meet the unique requirements of customers across various industries. Whether you need specific sizes, shapes, or material choices, we provide tailored solutions that ensure optimal heating efficiency and reliability.
Screw Plug Immersion Heater Thread Selection
Screw Plug Immersion Heater is a high-power, detachable electric heating tube that is formed by welding or screwing multiple heating tubes onto a hexagonal thread. When replacing, twist the heating tube into the hole for installation. It is non-standard and convenient and is usually selected by hot water engineering installation companies as a heating element. The common thread standards are: DN40 and DN50, which can be purchased as needed, and customized non-standard threads are also supported.
Installation Method
Prepare the Tank/Vessel:Clean and dry the tank. Ensure the threaded hole matches the heater’s size.
Inspect the Heater:Check the heater for any visible damage and verify specifications.
Install the Heater:Lubricate the threads (optional) and screw the heater into the tank’s threaded hole.Tighten by hand, then use a wrench to secure it, ensuring a snug fit.
Electrical Connections:Connect the heater to the power supply according to instructions. Ensure secure, insulated wiring.
Check for Leaks:Fill the tank and check for leaks around the heater. Tighten the plug if needed.
Test the Heater:Turn on the power and check for proper heating. Monitor the first cycle for smooth operation.
For the top-mounted type, pay attention to the length of the cold zone to avoid local high temperatures that may burn the heating tube.
Wiring Method
Home use
220V electric heating tube connected to 220V voltage
Star shape
220V electric heating pipe connected to 380V voltage
Triangle
380V eleciric heating pipe connected to 380V voltage
Material selection
1. 304 stainless steel is thickened 304 material, not 201 and other general stainless steel; 2. Copper material has good thermal conductivity, fast heat dissipation, certain anti-scaling functions, and longer life than ordinary stainless steel;
2. 316 green type is 316 stainless steel that has been treated with high-temperature nitriding, not coating ① The green treatment makes the magnesium oxide powder crystallize at high temperatures in the electric heating tube, and it is not easy to leak electricity.
3. The green treatment forms a dense hexagonal crystal on the surface of the tube, which enhances thermal radiation, slows down the formation of water, and increases the service life of the heating tube.
4. It is recommended to use 316 green types for poor water quality
Things to note
When heating liquids, it is strictly forbidden to dry-burn or dehydrate. When the heating tube is not used for a long time, please place it in a cool and dry place, seal it with a plastic bag, and do not place it in a humid environment. If the insulation is low, it can be placed in a 200℃ oven to dry.
Have a Question?
At ELEKHEAT, we’re here to provide the answers you need. Whether you’re looking for product information, technical specifications, or need assistance with maintenance, our team of experts is ready to help. Don’t hesitate to reach out—we’re committed to ensuring you get the support you need for the best heating solutions.
