DELLOK Yonghui High temperature resistant U-type elbow header coiler, support for customisation

FAQ

1. How do you clean a U-tube coil?

Cleaning a U-tube coil involves several steps to ensure efficient heat transfer and prevent fouling:

Disconnect Power and Drain Fluids: Ensure the system is safely shut down and fluids are drained.

Flush with Water: Use high-pressure water to remove loose debris and deposits.

Chemical Cleaning: Apply suitable cleaning chemicals based on the type of fouling (e.g., scale, algae, grease).

Rinse Thoroughly: Flush the system with clean water to remove all traces of cleaning agents.

Inspect and Test: Check for any damage and test the system before returning it to service.

2. What are common issues associated with U-tube coils?

Some common issues that may arise with U-tube coils include:

Fouling and Scaling: Build-up of deposits on the coil surface can reduce heat transfer efficiency.

Corrosion: Exposure to aggressive fluids or environments can lead to material degradation.

Leakage: Cracks or welding defects can cause fluid leakage, affecting system performance.

Freezing: In low-temperature applications, water within the coil can freeze, causing damage to the tubing.

DELLOK YONGHUI Radiating Pipe Manufacturing Co.,Ltd, was established in 2003, which is located in Jiangsu, China.We joined HARBIN AIR CONDITIONING CO., LTD.and became the most professional industry manufacturer in China., international bussiness more than 20 years, with it serves in the oil refinery, petrochemical industry, chemical industry, heat ex-changer industry, anti-corrosion engineering and environmental protection etc.. Our main products include pipe, tubes,  U bend tube, finned tube and pipe fittings made of Carbon Steel, Stainless Steel, Copper & Copper Alloy, Titanium, Inconel & Incoloy, Aluminium Alloy and so on.

Dellok Yonghui has successfully achieved this by offering our clients a range of high quality, environment friendly products from a diverse list of reputable, international principals, that sell by their own merit. By maintaining close contacts with our clients and providing dedicated technical support in time, we continue to meet and at times, exceed our clients' expectations. With an objective to provide piping material and tower packing to the oil and petrochemical industries, we strictly carry out a series of quality control measures and material control. The raw materials are purchased from well known, local famous mills such as TPCO, Tisco, Baosteel, Valin Group, Wuyang Steel and Luoyang Copper,..etc . We greatly value the repeat orders from commendable references and above all, the trust of our valued clients earned over the years. Our products are well accepted by customers from many countries

Due to our excellent quality, reliable performance and reasonable prices, we've established long-term relationships with our customers. Being the far-sighted and with a development vision of internationalization, Dellok Yonghui will always sticks to the idea of pursuit of value & cooperation is based on mutual benefits". We warmly welcome friends from all over the world to give counsel for development, and sincerely hope the realization of close cooperation on each field.

Quality is the theme of eternal pursuit of winner

- Production workshop-

Meticulous works, standardized management system and systematic quality assurance are Dellok Yonghui's best commitment to quality. In Dellok Yonghui, the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.

- Production process-

Quality reflects Dellok's strength, outstanding quality rejects mediocrity, each set of advanced equipment and each unique process condenses the spirit of excellence of Dellok Yonghui people. Dellok Yonghui deeply understands that only near-perfect products can realize the core connotation of Dellok's commitment to "achieve your value" , which guarantees your interests and values.

- Quality Control-

In order to ensure that the quality exceeds the standard, Dellok Yonghui has perfect product management monitoring equipment in the facility, mainly including advanced equipment such as spectrometer, material testing machine, thermal performance tester, and water pressure and air pressure testing machine, Webster hardness meter and so on.

- Perseverance and trust-

Dellok products are widely used in petroleum, chemical, natural gas, metallurgy, electric power, grain and oil machinery, food freezing and automobile industries. High-quality products and perfect after-sales service have been praised, favored and supported by users in China and abroad. Dellok Yonghui promises that we regard customers' needs and opinions as work goals, and serve customers with a conscious behavior and potential consciousness at the base of 100% sincerity, quality, and service. Dellok Yonghui has now developed into a professional manufacturing enterprise integrating scientific research, manufacturing and sales. Dellok people will, as always, use advanced high-tech products and dedicated business philosophy to serve the whole society.

Inheritance and innovation are the driving force for progress

Choosing Dellok Yonghui is choosing quality assurance.

Choosing Dellok Yonghui is choosing to make extraordinary.

Let's go ahead together with Dellok Yonghui.

Contact:Brian Wanqian.

T:+86 13761381662 (Whatsap,Wechat,)

M:dellok@fins-tubes.com