Steel Four-Column Round Radiator
Radiator Material Selection | Header: Material ST14 (mild steel plate), supplied by Tianjin Zhengda Technology Co., Ltd. Vertical Tubes: High-quality low-carbon steel pipes, material SPCC, manufactured by Tianjin Zeao Metal Products Co., Ltd. | ||
Wall Thickness | Header | ≥ 1.8 mm, up to 2.5 mm | |
Vertical Tubes | Vertical pipes adopt Φ25 round tubes with a wall thickness of 1.5 mm, which can be maximally processed up to 2.0 mm. | ||
Threaded Connection | Minimum thickness 2.0 mm, thread length ≥ 6 turns | ||
Heat Dissipation Method | Radiation-convection combined type | ||
Welding Process | 1.Argon arc welding, single-side welding with double-side forming; smooth weld seams and stable quality. 2.Flash resistance welding without filler; high strength and stable quality. | ||
Pretreatment Process | Degreasing, rust removal, etc. | ||
Anti-Corrosion Material & Coating Process | TY-3318 anti-corrosion coating developed by Wuhan Research Institute of Materials Protection is adopted with the automatic vacuum filling process and applied twice, with a coating thickness of 145μm. | ||
Surface Coating Process | Epoxy resin hybrid powder electrostatic automatic spraying process is adopted with two coating passes on an automatic spraying line equipped with Swiss Gema spray guns, followed by baking at 180–200°C, and the surface coating thickness is 100–120 μm. | ||
Pressure Test | Three test cycles are conducted at a constant test pressure of 1.8 MPa | ||
Inlet/Outlet Thread | Internal thread, nominal diameters: DN15, DN20, DN25, etc. | ||
Connection Methods | It includes four connection modes: same-side top inlet and bottom outlet, opposite-side top inlet and bottom outlet, opposite-side bottom inlet and bottom outlet, and 90° vertical bottom inlet and outlet. | ||
Appearance | Straight type, curved type, or 90°bent | ||
Application Range | Applicable to hot water heating systems with medium temperature ≤ 95°C and water quality complying with national standard GB1576 (Low-Pressure Boiler Water Standard). | ||
Prohibited Applications | Steam systems, Geothermal water systems | ||
System Maintenance & Water Quality Requirements | Suitable for closed heating systems with a medium temperature not exceeding 120°C, a pH value of 9–12, chloride (Cl⁻) ≤ 300 mg/L, sulfate (SO₄²⁻) ≤ 150 mg/L and dissolved oxygen ≤ 0.1 mg/L, and it must be kept filled with water during non-heating periods. | ||
Accessories | Each unit is equipped with an air vent valve, a plug and model-matched mounting brackets. | ||
Packaging | It adopts EPS foam packaging, and customized non-returnable packaging is available on request. | ||
Service Life | Up to 15 years under normal operating conditions | ||
Warranty | The warranty period is 24 months from the delivery date, with free repair or replacement for manufacturing defects, while only material costs will be charged for non-quality issues. | ||
Test Reports & Certification Bodies | Thermal performance and full inspection reports are issued by the National Building Materials Hardware & Plumbing Quality Supervision and Testing Center and the National Radiator Quality Supervision and Inspection Center. | ||
Production & Delivery Capacity | Daily production capacity about 8,000 sections | ||
Annual Production Capacity | About 2.5 million sections per year | ||
Remarks | It features a smooth and aesthetic appearance, easy cleaning performance and non-directional design for convenient installation. | ||
How to Install a Steel Four-Column Radiator
Installing a steel four-column radiator correctly is essential for achieving efficient heating performance, long-term durability, and safe operation. Although professional installation is recommended for complex heating systems, understanding the basic installation process can help homeowners and contractors prepare properly.
The first step is selecting the correct installation location. Steel four-column radiators are commonly installed beneath windows or along exterior walls because these areas experience the greatest heat loss. Proper positioning helps improve heat circulation and maintain comfortable room temperatures. Before installation, ensure the wall or floor can support the weight of the radiator, especially for larger models.
Next, carefully measure the space and mark the mounting points. Accurate measurements are important to ensure the radiator is level and properly aligned. Most steel radiators include wall brackets or floor supports, depending on the design. Install the brackets securely using appropriate wall anchors and hardware suitable for the wall material.
Once the brackets are fixed, the radiator can be mounted in place. It is important to leave enough clearance between the radiator and the floor or wall to allow proper airflow and maximize heating efficiency. After positioning the radiator, connect it to the central heating pipework using compatible valves and fittings. Thermostatic radiator valves are often recommended because they allow better temperature control and improved energy efficiency.
After all pipe connections are completed, the system should be checked carefully for leaks. The heating system can then be filled with water and pressurized according to the manufacturer’s recommendations. Bleeding the radiator is an important step, as trapped air inside the system can reduce heating performance. Once air is removed, test the radiator to ensure even heat distribution and stable operation.
Proper maintenance after installation is also important. Regularly checking valves, cleaning the radiator surface, and monitoring system pressure can help extend the radiator’s lifespan and maintain optimal efficiency.
Overall, installing a steel four-column radiator requires careful planning, accurate positioning, secure mounting, and proper connection to the heating system. When installed correctly, it provides reliable heating performance, energy efficiency, and a stylish addition to modern interiors.
Common Problems with Column Radiators and Solutions
Column radiators are known for their durability, strong heat output, and timeless design, but like any heating system component, they can occasionally develop problems. Understanding these common issues and their solutions can help maintain efficient performance and extend the radiator’s lifespan.
One of the most frequent problems is uneven heating, where parts of the radiator feel hot while others remain cold. This is often caused by trapped air inside the system. The solution is simple: bleeding the radiator using a radiator key to release the air and restore proper water circulation. Regular bleeding, especially at the start of the heating season, can prevent this issue.
Another common issue is leakage around valves or joints. This may result from loose fittings, worn seals, or corrosion over time. In most cases, tightening the connections or replacing faulty washers and valves can solve the problem. If corrosion is severe, professional repair or replacement may be necessary.
Noise from the radiator, such as banging or gurgling sounds, is another typical concern. This is usually caused by trapped air, water flow imbalance, or pressure changes in the system. Bleeding the radiator and balancing the heating system often eliminates these noises. In some cases, adjusting the boiler pressure may also help.
Cold spots at the bottom of the radiator can occur due to sludge buildup inside the system. Over time, debris and rust particles may accumulate and block water flow. A system flush or chemical cleaning can effectively remove this buildup and restore full heating performance.
Finally, reduced heat output may result from thermostat issues or inefficient water circulation. Checking the thermostat settings, ensuring valves are fully open, and servicing the central heating system can improve performance.
Overall, most column radiator problems are minor and can be resolved with simple maintenance. Regular care, including bleeding, cleaning, and system checks, ensures reliable heating efficiency, longer service life, and consistent comfort.
How to Maintain Steel Round Radiators
Maintaining steel round radiators is essential to ensure long-lasting performance, energy efficiency, and a clean appearance in your home or commercial space. With regular care, these radiators can operate efficiently for many years while providing consistent and comfortable heating.
One of the most important maintenance tasks is regular cleaning. Dust and dirt can accumulate on the surface and between the round columns, which may reduce heat efficiency. To clean the radiator, use a soft cloth or a vacuum cleaner with a brush attachment to remove dust from hard-to-reach areas. Avoid using harsh chemicals, as they may damage the protective coating. A mild soapy solution is usually sufficient for surface cleaning.
Another key maintenance step is bleeding the radiator. Over time, air can become trapped inside the system, causing uneven heating or cold spots. Using a radiator key to release trapped air helps restore proper water circulation and improves heating performance. It is recommended to bleed radiators at the beginning of the heating season or whenever you notice reduced efficiency.
Checking for leaks is also important. Inspect valves, joints, and pipe connections regularly to ensure there are no signs of water leakage or corrosion. If any issues are found, they should be addressed immediately to prevent further damage.
Maintaining proper system pressure is another factor that affects performance. Low pressure can reduce heating efficiency, while excessively high pressure may strain the system. Monitoring the boiler pressure and adjusting it according to manufacturer guidelines helps maintain stable operation.
Finally, consider scheduling periodic professional servicing for your central heating system. A professional inspection can help identify hidden issues, remove sludge buildup, and ensure all components are working efficiently.
Overall, regular cleaning, bleeding, inspections, and system maintenance are key to keeping steel round radiators in excellent condition, ensuring efficient heating performance, energy savings, and long-term reliability.
