Water Heater Flange Developed for Water Tank Integration
- Electric / Solar / Gas / Heat pump water heater tanks
- Tank-based heating systems
- Water tank opening sealing
- Heating element installation
- Maintenance and inspection access
Flange for Water Heater Tanks
Our water heater flanges are designed specifically for water heater tanks, not generic industrial pipe connections. They are applied to mount heating elements, seal water tank openings, and support stable assembly during mass production.
As a professional water heater flange, we provide OEM/ODM and customized flange solutions for water heater and hot water tanks applications.
Water Heater Flange by Different Hole Pattern
Different water heaters and heating elements require different hole patterns. Choosing the correct hole numbers and pitch circle is critical for installation accuracy and sealing performance.
Designed for small-capacity, low-pressure water heaters. 4 hole flange offers a cost-effective and easy-to-install solution for our customers.
Provides improved stress distribution compared to 4-hole designs and is mainly used for compatibility.
The most commonly used configuration, delivering balanced mechanical strength and reliable sealing. Designed for medium to large capacity and pressurized water heaters.
Engineered for large-capacity, high-pressure or commercial water heaters, ensuring maximum structural stability and long-term sealing reliability.
Water Heater Flange by Different DN
We manufacture water heater flanges in commonly used DN sizes to match different tank opening designs.
Suitable for small-capacity water heaters with low flow demand, typically used in compact residential water heating systems.
One of the most widely used sizes for hot water tanks. Compatible with many standard immersion heating elements.
Applied in medium-capacity water heater tanks where larger openings are required for installation or maintenance.
Designed for large hot water tanks. Provide sufficient opening size for assembly and inspection. Customizable details according to your requirements.
Why Choose Haoha as Your Water Heater Flange Supplier?
We are not just a supplier, we are a manufacturer with deep expertise in water heater components.
Engineered specifically for water heater tanks, not generic flanges.
Ensures proper installation and sealing for immersion heating elements.
4, 5, 6, 8 hole configurations available for different applications.
DN40, DN50, DN65, DN80 and custom sizes to fit your tank.
Supports customized orders and mass production for manufacturers.
Maintains dimensional accuracy across sample and mass production.
Thickness, flatness, and hold positions verified to prevent installation issues.
Powerful Manufacturing Capability
Haoha provides all solutions for your water heater and specializes in every component including water heater flanges. Our manufacturing capability supports OEM/ODM water heater flange production with custom size, thickness, and hole pattern. In addition, we can supply stable batch consistency for long-term supply.
Strict Quality Control for Your Water Heater Flange
Water heater flanges are typically welded or integrated into tanks at an early production stage. We focus on the quality control points such as hole position accuracy and pitch circle control, thickness and flatness inspection, visual inspection, and welding edge condition. By controlling key points, we help customers reduce installation issues, leakage risk, and production losses.
Yes. We can provide a small order for your sample water heater flanges for technical verification and fit testing before mass production.
Lead time depends on size and customization, typically 2-4 weeks for standard water heater flanges, and 3-5 weeks for fully customized OEM orders.
Yes. Our technical team can guide you on correct hole alignment, gasket selection, and installation tips for reliable sealing.
We accept PDF, CAD, or hand sketches. Our engineers will review, confirm key tolerances and flange-tank compatibility before production.
