
Screw plug heaters are compact, high-efficiency immersion heaters designed for direct heating of liquids and gases in tanks, vessels, and pipelines. The heating elements are brazed or welded into a threaded plug, allowing easy installation into standard NPT or BSP threaded openings.
These heaters offer rapid heat-up, uniform temperature distribution, and minimal heat loss, making them ideal for applications ranging from water and oil heating to chemical processing. Available in a variety of sheath and plug materials, screw plug heaters can be configured for safe operation in hazardous or corrosive environments.
As a premier manufacturer, Subhot Enterprises Pvt. Ltd. specializes in designing and engineering high-performance Screw Plug Heater in Biratnagar tailored for demanding applications. Built using top-grade elements, our solutions focus on long-term sustainability and heavy load compliance for units across Biratnagar.
Whether your facility requires standard configurations or highly customized specifications, our range of Screw Plug Heater delivers consistent performance under harsh industrial environments. Engineering compliance and custom fitments are double-tested before shipping the batch to your exact industrial site in Biratnagar. Contact our technical expert team today for standard pricing or a tailored business quotation for your operations.
| Parameter | Value / Range |
| Heating Element Materials | High-grade NiCr and FeCrAl alloy tubular coils |
| Sheath Construction | SS304/316/316L, Incoloy 800/825, Inconel, Copper |
| Plug Materials | Carbon Steel, SS304/316, Brass, Incoloy (zinc plated) |
| Thread Configurations | NPT and BSP threads from ½″ to 4″ |
| Power Range | 0.5 kW to 25 kW (single and three-phase) |
| Voltage Options | 110V, 230V, 415V, 480V (single and three-phase) |
| Watt Density | Up to 100 W/in² (application optimized) |
| Maximum Operating Temperature | 400°C (750°F) continuous operation |
| Element Length Range | 50mm to 3000mm immersion depth |
| Insulation Type | Compacted high-purity MgO powder |
| Terminal Rating | IP65/IP67 weatherproof and explosion-proof options |
| Control Integration | Built-in thermostat, over-temp sensing, dual-element switching |
| Gasket Materials | PTFE, Graphite, Viton (application specific) |
| Certifications Available | ATEX, CIMFR, PESO, IECEx, UL (hazardous area approved) |