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Screw Plug Immersion Heaters

 Heating liquids effectively demands components that perform under pressure. Our Screw Plug Immersion Heaters are built to tackle the toughest challenges in liquid heating, offering powerful, consistent warmth that ensures precise temperature control and system reliability.

Heating Element Material

Nickel-Chromium (NiCr) alloy or Stainless Steel (Grade 304/316) for reliable heat transfer

Sheath/Outer Material

Stainless Steel (SS 304/316), Incoloy, or Brass for corrosion resistance in liquids

Voltage Rating

120 V – 240 V (single-phase); up to 480 V (three-phase) for industrial applications

Power Rating

500 W to 50 kW, scalable based on tank size and heating requirements

Temperature Range

0°C to 200°C for water/oil heating; up to 400°C for high-temperature fluids/processes
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Product Description

Our screw plug heaters address these issues with durable, corrosion-resistant sheathing and a heat-up time of 10-30 minutes, reaching temperatures from 0°C to 200°C. Engineered to withstand harsh liquids like acids or oils, they minimize upkeep, providing procurement teams with a cost-efficient option that keeps processes flowing and budgets in check. 

Heat-Up Time

10 to 30 minutes to reach target temperature, depending on power and liquid volume

Watt Density

5 W/in² to 60 W/in², customizable based on fluid type and heating needs

Insulation Material

Magnesium Oxide (MgO) for high-temperature insulation and electrical safety

Corrosion Resistance

High resistance to water, oils, acids, and alkaline solutions; material-specific options

Dimensions

Length – 150 mm to 1500 mm; Diameter – 8 mm to 25 mm (customizable per tank/vessel)

Shape/Configuration

U-shaped, straight, or hairpin tubular; designed for immersion in liquids

Current-Carrying Capacity

5 A to 150 A, depending on power rating and conductor sizing

Heat Transfer Method

Direct conduction; efficient heat transfer to liquids via immersion

Mounting/Fitting Type

Screw plug (NPT/BSP threads – 1″ to 2.5″ standard); flange options for larger units

Safety Features

Overheat protection (thermal cutoff), grounded sheath, and optional liquid level sensor

Standards Compliance

Meets or exceeds UL 1030, IEC 60335-1, and ASME B31.3 standards for immersion heating

Technical Advantages

Immersion heating faces aggressive fluids and constant submersion that test heater longevity. Our screw plug heaters are crafted with tough materials like stainless steel or Incoloy, resisting corrosion and delivering power ratings from 500 W to 50 kW. 

Inefficient heat transfer or mismatched designs can waste energy and delay processes. With a watt density of 5-60 W/in² and direct conduction heating, our heaters provide fast, uniform warmth tailored to your fluid type and tank size. 

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Industry Applications

Chemical Processing Tanks

Powers heaters in mixing vessels, maintaining fluid temperatures for chemical reactions. 

Oil and Gas Heating

Integrates into storage tanks, ensuring consistent heat for viscous oils and fuels. 

Food and Beverage Processing

Supports water or solution heating in production vats, meeting hygiene and temperature standards. 

Water Treatment Systems

Enhances heaters in treatment tanks, preventing freezing or aiding chemical dosing. 

Pharmaceutical Manufacturing

Equips sterile vessels with precise heating for drug formulation and processing. 

Industrial Cleaning Systems

Drives heaters in wash tanks, delivering reliable heat for degreasing or sanitizing. 

Consistent Heat for Liquid Efficiency

Fitting heaters into your tank designs shouldn’t slow your production line. Our screw plug heaters feature adaptable configurations such as U-shaped or straight and standard NPT/BSP thread sizes (1″ to 2.5″), ensuring a seamless fit into vessels or pipes. 

Inconsistent heating or safety risks can disrupt fluid processes and reliability. Our heaters include safeguards like thermal cutoffs and deliver steady, safe heat, maintaining precise temperatures even in demanding conditions.

Screw Plug Immersion Heaters

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Having Doubts? Our FAQ

Check all our Frequently Asked Question

How do your heaters handle aggressive fluids like acids or oils?

Our heaters feature sheathing options like Incoloy or stainless steel, designed to resist corrosion from acids, oils, and other harsh liquids. This durability ensures long-term performance in tough applications, giving sourcing teams a reliable component that cuts replacement costs and keeps processes running smoothly. 

What’s the advantage of your screw plug design over flanged heaters?

The screw plug design, with standard NPT/BSP threads (1″ to 2.5″), offers easier installation and removal in smaller tanks compared to bulkier flanged heaters, saving time and labor. For procurement heads, this means lower assembly costs and greater flexibility, making it a cost-effective choice for compact systems.

Can your heaters be swapped out quickly during maintenance shutdowns?

Yes, the screw plug mounting allows for fast removal and replacement without extensive disassembly, minimizing downtime in production schedules. This quick-swap capability helps purchasing managers keep maintenance efficient, ensuring your systems get back online with minimal disruption.

How do your heaters improve throughput in liquid heating processes?

With heat-up times of 10-30 minutes and power ratings up to 50 kW, our heaters deliver rapid, consistent heat to fluids, speeding up processes like chemical mixing or oil warming. This efficiency boosts client productivity, offering sourcing professionals a component that enhances your systems’ appeal in high-output industries.

What flexibility do we have in matching heaters to different tank sizes?

Our heaters come in lengths from 150 mm to 1500 mm and power options from 500 W to 50 kW, letting you tailor them to small vessels or large tanks with ease. This customization simplifies sourcing for procurement teams, ensuring a perfect fit across your product line without overcomplicating inventory.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

  • Bhilai
  • Chennai
  • India
  • Germany
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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

  • Bangalore
  • Chennai
  • India
  • Germany
Become a Frigatian
Become a Supplier

GENERAL ENQUIRIES

  • +91 96778 64606
  • manufacture@frigate.ai
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Screw Plug Immersion Heaters

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Screw Plug Immersion Heaters

Need reliable Machining for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

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