1 / 4Screw Plug Heater
Screw Plug Heaters represent advanced compact immersion heating technology featuring precision-engineered hairpin tubular heating elements permanently welded or brazed into NPT/BSP threaded hex plugs for direct installation in tanks, vessels, and process systems. These sophisticated heating solutions are specifically designed for efficient direct immersion heating of oils, water, chemicals, and diverse process fluids where space constraints and installation simplicity are critical requirements.
High watt density up to 100 W/in² for intensive heating
Universal NPT/BSP thread installation (½″ to 4″)
Replaceable elements without tank drainage
- Direct immersion heating for maximum thermal efficiency
- Replaceable heating elements without complete tank drainage
- Comprehensive alloy selection for diverse chemical compatibility
- Optional explosion-proof and flameproof certifications available
- See all 14 features
Product Description
Key Features
- Direct immersion heating for maximum thermal efficiency
- Replaceable heating elements without complete tank drainage
- Comprehensive alloy selection for diverse chemical compatibility
- Optional explosion-proof and flameproof certifications available
- Rapid thermal response with uniform heat distribution
- Compact design optimizing installation space requirements
- Low maintenance requirements with extended operational life
- Integrated temperature control and safety protection systems
- Universal NPT/BSP threading for worldwide compatibility
- Custom power ratings and voltage configurations available
- Advanced sealing systems preventing leakage and contamination
- Professional terminal enclosures with IP65/67 protection
- Comprehensive technical support and application engineering
- Cost-effective heating solution with superior energy efficiency
Construction
- 01
Precision Hairpin Heating Element
High-performance NiCr or FeCrAl tubular coils with compacted MgO insulation in precision-drawn stainless steel or Inconel sheaths for efficient heat transfer and superior electrical isolation.
- 02
Engineered Threaded Plug Assembly
Precision-machined carbon steel, SS304/316, brass, or Incoloy hex plug with NPT/BSP threads providing leak-tight mounting and superior mechanical strength.
- 03
Professional Terminal Enclosure
IP65/67-rated weatherproof housing with high-temperature ceramic terminal block, cable gland, and optional integrated control systems for secure wiring and environmental protection.
- 04
Advanced Sealing System
High-performance PTFE, graphite, or Viton gaskets engineered for chemical resistance, temperature cycling, and leak prevention in demanding process applications.
- 05
Precision Element Mounting Collar
Engineered locknut and support assembly ensuring stable vertical or angled immersion positioning without element movement or mechanical stress.
Specifications
- 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, PESO, IECEx, UL (hazardous area approved)
Applications
- Industrial water and oil heating tanks
- Chemical process vessels and reactors
- Steam generation and boiler systems
- Lubrication oil conditioning systems
- Food and beverage processing equipment
- Pharmaceutical manufacturing vessels
- Grease and solvent heating applications
- Hydraulic fluid and oil reservoir heating
- Power plant auxiliary heating systems
- HVAC and building services equipment
- Automotive and aerospace component heating
- Marine and offshore platform heating systems
- Laboratory and research equipment heating
- Petrochemical and refinery process heating
Frequently Asked Questions
Available In
We manufacture the Screw Plug Heater in India and export it to 20 countries. Choose yours for local supply details.
Australia
Russia
Brazil
Canada
Germany
Japan
Kuwait
Mexico
Oman
Qatar
Saudi Arabia
South Africa
Turkey
United Arab Emirates
United Kingdom
United States
China
Denmark
India
ThailandRequest a Quote for Screw Plug Heater
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