ABOUT
Introduction
A screw plug immersion heater is a compact and efficient variant of the immersion heater, where the mounting flange is replaced by a threaded plug. The hexagonal threaded head has one or more tubular heat sources & screws into the side of the tank, container or processing line using a standard external thread coupling.
Tempsens Screw Plug Heater are used to heat liquid within small tanks/containers, & are supplied as single phase or three phase powered devices. They can be installed in either a horizontal or vertical configuration, and can be supplied with a thermowell for the purpose of containing a temperature sensing device or thermostat for automatic on/off control.
Tempsens is a manufacturer of high quality electric heating elements, and engineers each electric heating element to deliver an exceptionally consistent, safe and energy efficient method of delivering heat energy in an industrial atmosphere including the high-ambient-temperature and corrosion-intensive conditions prevalent across the UAE and Gulf region.
About Screw Plug Immersion Heater
Key Features of Screw Plug Immersion Heaters
| Parameter | Details |
|---|---|
| Power Rating | 0.1 kW to 50 kW to suit a wide range of process requirements |
| Screw Plug Fittings | NPT or BSP sizes: 1″, 1¼”, 1½”, 2″, 2½”, 3″ and equivalent metric threads |
| Voltage | 120V to 690V AC, single-phase or three-phase configurations |
| Sheath Materials | Stainless Steel (SS), Alloy 600 series, Alloy 800 series (INCOLOY), Hastelloy, Titanium, Copper |
| Screw Plug Materials | Cast Iron, Carbon Steel, Brass, Stainless Steel |
| Watt Density Range | 0.7 W/cm² to 15 W/cm² depending on fluid characteristics |
| Max Operating Temperature (SS Sheath) | Up to 1200°F |
| Terminal Enclosure | Suitable for safe area and hazardous area installations |
| Control Options | Thermostat, RTD, Thermocouple integration |
| Optional Feature | Thermowell for external thermostat knob access and easy adjustment |
Industrial Applications of Screw Plug Immersion Heater
- Crude oil, HFO and lubricant oil preheating in storage tanks at refineries and terminals across the GCC.
- Clean water heating in commercial and industrial facilities.
- Alkaline and corrosive solvent heating in chemical processing plants.
- Water and other liquid vaporiser systems including desalination pre-treatment stages.
- Gas heating systems and process preheaters at LNG and upstream gas facilities.
- Anti condensation heating in electric motors and switchgear in offshore and coastal environments.
- Oil preheating in compression and hydraulic units.
- Solar water bath systems.
- Chemical heating across process industries in industrial zones such as KIZAD, JAFZA, and JUBAIL.
- Storage chamber and enclosure heating.
- Small industrial ovens and batch heating systems.
If you want to know more about the applications of Screw Plug Immersion Heater you can refer to our Guide :- Link
Benefits of Screw Plug Immersion Heater
- Direct thread mounting eliminates the need for flanges and reduces installation complexity and on-site labour costs.
- Compact design of screw plug types makes them exceptionally well suited for use in small tanks and vessels where space is limited.
- Lower material and installation costs than would be associated with flanged immersion heaters.
- Easy to maintain because of the easy removal of the screw plug on the threaded plug.
- Integrated temperature control option eliminates need for separate control panel.
- Seals using ceramic, soft seal or sealant type prevent the entry of moisture.
- High purity magnesium oxide filled heater offers the highest quality electrical insulation and thermal conductivity.
- Resistance wire is formed in a concentric (closely spaced) coil configuration around the heated area of the heater to promote consistent heat distribution.
- Very energy efficient with very little heat loss while heating, supporting operational cost reduction targets across Gulf industrial facilities.
- Can be used for both corrosive and non-corrosive fluids. Select the right sheath material based on application.
Why Tempsens Is the Leading Manufacturer of Screw Plug Immersion Heater in UAE?
Tempsens has established itself as a reliable partner for industrial heaters suppliers and end-users across the Middle East, backed by the following:
- Certified by ISO 9001:2015, CE, IEC, CCOE, UL, and ATEX (Ex) to ensure products comply both globally and Gulf-specific regulatory requirements.
- Custom engineering support available for proper watt density selection, sheath materials, and fitting sizes particularly important in high-temperature or corrosive Gulf process environments..
- Experienced suppliers of heaters in oil and gas, chemical, power, and water treatment industries across the GCC.
- Products can be used in safe and hazardous areas from the same line, a key requirement for upstream and downstream energy facilities.
FAQ
Frequently Asked Questions
Find answers to frequently asked questions related to Screw Plug Immersion Heater.
The immersion heater attaches to the tank or vessel wall through a threaded fitting. Heating occurs through electric resistance coils inside the sheath transferring heat energy to the fluid surrounding the immersion heater. The result is quick and efficient heating of the fluid.
A screw plug immersion heater can be used to heat any type of fluid including water/oil and solvent-based fluids as well as gas heating systems, however you will need to ensure you have the right sheath material and watt density selected for your specific medium to use it correctly.
A screw plug immersion heater installs using a threaded plug and is primarily designed to heat smaller tanks. Flanged heaters install using a bolted flange and are most commonly used with larger tanks while inline heaters are integrated directly into pipelines so they can heat continuously as fluid flows through them.
