Core Value

In commercial catering equipment and industrial water baths, liquid levels frequently fluctuate. When standard straight or inline U-shaped heaters are mounted through the side wall of a tank, they remain suspended at the height of the mounting hole. If the water level drops below this hole, the exposed element will rapidly overheat, warp, and destroy itself—a catastrophic failure known as “dry-firing.”

The Industrial 2kW Offset Double U Tubular Water Heater brilliantly solves this spatial and safety challenge through advanced geometric forming. By utilizing a precision CNC-bent “offset” , the heater can be mounted securely through a standard side-wall port, while the active Double U heating zone drops down to sit virtually flush against the tank floor.

This offset geometry ensures the heating element remains safely submerged in the water for as long as possible, even in severely depleted, shallow basins. Furthermore, the folded Double U design packs a substantial 2kW of heating power into a highly condensed footprint, effectively expanding the surface area. This lowers the watt density (surface load), which significantly slows the accumulation of destructive calcium scale in hard-water commercial kitchens.

To ensure absolute leak prevention under commercial vessel pressure, the heater features precision-machined brass or stainless steel threaded bulkhead fittings that are deeply silver-brazed to the sheath. When clamped down with the heavy-duty red silicone gaskets and locking nuts, they create a 100% watertight mechanical seal.

• ✓ Stepped Offset Geometry: Drops the active heating zone flush with the tank floor, maximizing usable water depth and drastically reducing the risk of dry-firing.
• ✓ Maximized Surface Area: The Double U profile delivers a rapid 2kW boil while maintaining a low, scale-resistant watt density.
• ✓ Leak-Proof Threaded Mounting: Precision-machined fittings with resilient red silicone washers guarantee a drip-free seal through the vessel wall.
• ✓ Secure Electrical Terminals: Upward-facing threaded studs with ceramic insulators provide a rock-solid, vibration-proof connection for ring terminals.
• ✓ Direct OEM Manufacturing: Fully customizable offset drop-depths, insertion lengths, and wattages supplied directly by HT HEATER.

Technical Specifications & Performance Data

Industrial Applications & Solutions

This specially contoured offset immersion heater is the premier thermal solution for shallow fluid equipment:

• Commercial Steam Tables & Bain-Maries: Mounts through the side wall but heats from the very bottom of the shallow water pan, providing continuous steam for buffet lines.

• Countertop Food Warmers: Fits perfectly into tight commercial catering appliances, ensuring rapid heat recovery without interfering with standard-sized food inserts.

• Industrial Parts Washers: The offset allows the heater to drop beneath internal basket ledges, keeping the active heating zone safely away from the metal parts being cleaned.

• Laboratory & Medical Water Baths: Delivers stable, highly distributed 2kW heating for precision fluid incubation and sterilization.

HT HEATER Advantage: Why Choose Our Offset Elements?

Installation & Handling Guidelines

• Orientation is Critical: The heater must be installed so that the offset “step” drops downward toward the floor of the tank. Installing it upside-down will push the heating element toward the surface of the water, drastically increasing the risk of dry-firing.

• Proper Gasket Sealing: Position the red silicone sealing washers on the inside of the tank wall (between the tank interior and the heater’s fixed flange). Pass the threaded fittings through the holes, and firmly tighten the locknuts on the outside of the tank to compress the seal.

• Elevate Slightly from the Floor: While the offset is designed to lower the element, ensure it hovers slightly (e.g., 5-10mm) above the actual tank bottom. Resting directly on the metal floor will trap mineral sediment, causing the heater to insulate itself and overheat.

• Routine Descaling Schedule: Even with a lowered watt density, boiling water will leave calcium scale behind. Establish a strict maintenance schedule to soak the element in commercial descaling acid (e.g., citric acid) to maintain thermal efficiency and prevent premature burnout.

Customer Success Stories

Case 1:

Commercial Buffet Equipment OEM (USA)

• Application: Multi-well drop-in steam tables for high-volume casino buffet lines.

• Challenge: Kitchen staff were frequently forgetting to refill the shallow steam pans during peak service hours. Standard straight immersion heaters were becoming exposed to the air, glowing red hot, and melting the plastic drain valves below the pans.

• Solution: Partnered with HT HEATER to integrate the 2kW Offset Double U Tubular Water Heater. The specific 2.5-inch offset drop allowed the heater to hug the absolute bottom of the pan.

• Results: DRY-FIRE FAILURES REDUCED BY 85%. By resting at the lowest possible point in the water reservoir, the elements remained submerged much longer during low-water events, saving the OEM thousands in warranty claims and protecting the end-users from equipment fires.

Case 2:

Industrial Degreasing Tank Manufacturer (UK)

• Application: Small-batch heated ultrasonic cleaning tanks for aerospace fasteners.

• Challenge: The tank design required a side-wall electrical penetration, but the internal cleaning basket sat too low, constantly colliding with standard straight heaters and damaging the metal sheaths.

• Solution: HT Heater supplied custom-engineered offset elements. The cranked Z-bend allowed the heater to enter through the high side-wall port, drop instantly, and tuck safely underneath the suspension ledge of the cleaning basket.

• Results: PERFECT INTERNAL CLEARANCE. The heater delivered the required 2000W of rapid heating without ever coming into physical contact with the heavy metal parts baskets, drastically extending the heater’s operational lifespan.

Pricing & Procurement Options

• OEM Customization: Tailored shapes, custom cutout holes for pipe nozzles, specialized voltage/wattage configurations, and custom strap lengths.
• Lead Times: Custom samples: 3–5 working days. Bulk production orders: 8–12 working days upon technical drawing sign-off.
• Packaging & Shipping: Individually bagged with protective foam padding and packed into heavy-duty 5-ply export cartons to prevent bending or lead wire stress during international transit.
• Minimum Order Quantity (MOQ): Low MOQ starting at 5–10 units for custom dimensions; competitive volume pricing tiers for equipment manufacturers.

Global Certifications & Compliance

• CE Marking
  Fully compliant with European safety and environmental standards.
• LVD Compliance
  Low Voltage Directive tested for continuous thermal load safety.
• RoHS Compliant
  Constructed using environmentally safe, lead-controlled brass alloys.
• ISO 9001
  Certified quality control covering CNC machining, coil pressing, and electrical testing.

Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.

Comprehensive After-Sales Support

• • Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.

  • Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.

  • Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.

Ready to Optimize Your Injection Molding?

Next Steps:

• 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
• 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
• 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
• 📞 Contact Hot Runner Experts – Response within 2 hours

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