Design Patent Certificate
Shaded pole 35W reverse fan (iron)
Rated: voltage 220V
Frequency: 50Hz
Load input power: 35(1+10%)W
Speed: 2050±150r/min
Wind speed: ≥11.5m/s
The boiler centrifugal fan is a crucial part of the wall-mounted boiler system. Its main job is to help with ventilation and air intake. To put it simply, the fan spins around to create airflow inside the boiler. This is important because it helps get rid of the smoke that's made when fuel is burned. If the smoke can't escape, it can build up inside and cause air pollution and safety problems. The fan also helps bring in fresh air from outside. This is necessary because the boiler needs oxygen to burn fuel properly. When the fan sucks in fresh air, it helps the boiler work better and use less energy. This means the boiler can heat things up more efficiently. So, the centrifugal fan is important for both getting rid of smoke and bringing in the air that the boiler needs to work well. It's worth noting that the fan's role in ventilation is just as important as its role in air intake. By creating a smooth flow of air, the fan helps prevent smoke from building up and causing problems. At the same time, it brings in the oxygen that's needed for combustion to happen. This balance is key to the boiler working safely and efficiently.
Company Introduction
Foshan Shunde Nianxun Electric Appliance CO., LTD is a company that specializes in making electrical components. With years of experience and knowledge in the field, we have a strong position in the market for parts used in boilers, gas water heaters, and similar products. Our ability to manufacture high-quality products, our presence in the market, and our stable product lineup make us a company to watch in the electrical component industry. Since we started in 2008, our company has grown to cover an area of 1000 square meters. We have a team of around 50 skilled and innovative professionals who can quickly respond to changes in the market. Our team provides customized solutions to our clients and has a lot of expertise and experience in the industry. We export our products to over 36 countries around the world and have a lot of experience making supporting products like stainless steel exhaust pipes, centrifugal fans, and air pressure switches. This gives us a significant influence in the electrical component sector. We have a wide range of products and services that cater to the needs of our clients. Our team is dedicated to providing the best possible solutions and support to our customers.
Centrifugal Fan Selection
1. Select a fan with high efficiency, small size, and a wide adjustment range to meet the system's acceptable performance, efficiency, and quality requirements.
2. The fan's operating point should be selected near its high-efficiency point to ensure stable operation and avoid operation in the surge zone.
3. To reduce noise, the fan speed must be reduced, and a larger fan should be selected.
4. Selecting a large fan often results in the fan operating in a low-airflow range, with a large pressure difference between the fan inlet and outlet, causing operational instability and noise pulsation, leading to higher noise levels.
5. Selecting a small fan will result in a higher fan speed, with air exiting the blades at higher velocities, also generating higher noise levels.
6. The average air velocity at the fan outlet is typically 10-15 m/s, and should ideally not exceed 17 m/s.
7. For fan speeds ≤ 450 rpm, select an 8-pole motor; for 451~799 rpm, select a 6-pole motor; for 800~1500 rpm, select a 4-pole motor; and for speeds above 1500 rpm, select a 2-pole motor.
R&D Capabilities
Nianxun Electric is really focused on making sure their production processes and technology are top-notch. They have their own team of experts who work on coming up with new ideas and making their products better. With advanced machines and quality control systems, they can guarantee that their products are consistent and reliable. From choosing the right materials to testing the final product, they make sure to follow strict quality control rules throughout the entire production process. This way, they can ensure that every product that leaves their factory meets their high standards. The company has state-of-the-art facilities, including production workshops, assembly lines, and quality testing equipment. This allows them to do everything in-house, from assembling electronics to making hardware and molding plastic parts. They're experts in making commercial thermal energy equipment, as well as parts for home appliances like pressure switches and wall-hung boiler fans. Nianxun Electric has a strong foundation in international trade and exporting, and they're always looking for ways to innovate and improve their technology. They also support custom product development and manufacturing, which means they can work with clients to create tailored products that meet their specific needs. With their advanced processing capabilities, including stamping, mold making, and laser cutting, they can bring these custom products to life.


Design Patent Certificate


A Commercial Kitchen Fan


A Commercial Kitchen Fan Housing


Air Pressure Switch Performance Detection Device


A Device For Testing Air Pressure Switch


Authoritative Certification


CCC Certification


Transfer Leisheng ODM Report
The air pressure switch is a device in the safety protection measures of the wall-mounted boiler. When the fan stops unexpectedly or the exhaust volume is insufficient due to channel blockage, the air pressure switch will automatically disconnect, thereby ensuring the safe operation of the wall-mounted boiler.
The boiler centrifugal fan is responsible for discharging the exhaust gas generated by the boiler's working combustion state to the outside, while absorbing the required fresh air to provide power for exhaust and ensure the normal operation of the boiler.
When purchasing, pay attention to the brand, quality, performance parameters and after-sales service of the product. At the same time, we can ensure that the quality and performance of the product are more reliable.
We select suitable accessories for you according to the model and power of the wall-mounted boiler to ensure its compatibility and adaptability. In addition, timely technical support and maintenance services are also provided.
You can put forward specific parameter requirements according to your own needs, and we will do our best to customize exclusive products for you.
Yes, if you have an authorized trademark, we can also carry out OEM production to meet your brand expansion needs.
All products provide up to two years of after-sales protection. We will provide you with professional and efficient services to solve any problems you encounter during product use.
We strictly adhere to international trade regulations (such as EU CE, US FCC, and Middle East SASO certifications). We provide product compliance documentation and assist customers with customs clearance, tax, and other issues to ensure smooth order delivery.


Delivery in Time


Cargo Supply Capacity

It is produced with advanced design concepts, fully automated production equipment and advanced testing equipment.

The international fully automated industrial production line has top-notch equipment production capacity.

Master the pre-sales product technology and after-sales solutions of the product.

Welcome to join our brand and become a member of our team.

Establish after-sales service centers around the world, covering the whole country.

We are at your service 24 hours a day, anytime, anywhere, whenever you need us.