Faqs

How to protect CPVC plastic pipes after winter shutdown?

During the construction of CPVC pipes in winter, due to the low-temperature brittleness of plastic pipes, the lower the temperature, the faster the toughness and impact resistance of the pipes decrease. Therefore, construction personnel need to strictly follow the construction specifications. During winter construction, in addition to requiring construction workers to carry out construction in accordance with construction specifications, protection after the construction site is shut down in winter is also required to prevent pipeline damage due to improper protection.

What are the angles and materials of commonly used elbows?

Elbows are used to change the direction of pipes.

According to angle, there are three most commonly used elbows, 45 degrees, 90 degrees and 180 degrees. In addition, there are also very commonly used angles such as 60 degrees according to project needs. We see that the newly produced elbows are mainly 45-degree elbows and 90-degree elbows.

The materials include UPVC, CPVC, PVC, PPF, RPP, etc. The pipe wall is designed with overall thickening to increase crack resistance and pressure resistance, and has a longer service life. The inner wall is transparent and has no structure, with low resistance, allowing water flow to pass through and smooth pipe joints. Make construction easier.

In addition to the forked butt welding loop flange, which flange is more commonly used?

The more commonly used ones are blind flanges.

The blind flange is very different from all flanges. The middle of the blind flange is solid, surrounded by bolt holes, and looks like a cover. The blind flange is mainly used to block the pipe opening and prevent the flow and overflow of liquid in the pipe. It is generally used at the end of the water supply branch pipe. Our blind flanges produced by Nanyi have high toughness, light texture, smooth ground, and are not easy to absorb scale. They are made of high-quality raw materials and are not easy to corrode or age. They can withstand great mechanical stress and can still maintain appearance quality after long-term use. Installation and maintenance All are very convenient and suitable for a variety of working environments.

Are there any flanges with better sealing properties?

For flanges with better sealing properties, you can look at countersunk flanges. The countersunk flange refers to the flange in which the end of the pipe is inserted into the flange and bonded with special adhesive. It is generally used in occasions with high sealing requirements, such as petrochemical, shipbuilding, pharmaceutical, metallurgy, machinery and other industries. Our Nanyi multiplication method is produced according to the national standard GB, American standard amsi, German standard Di and Japanese standard GIS. We have many years of production and processing experience. The product surface is smooth and three-dimensionally formed, without affecting the strength and sealing properties. Materials such as CPVC/UPVC are selected, including multiple sizes from DN15 to DN600, with complete specifications and various styles, and can be customized according to customer needs.

If you want a flange with good corrosion resistance, which one should you choose?

Butt welding flanges are recommended. The obvious feature of the butt welding flange is that it has a raised cylindrical socket, which is suitable for environments with large temperature and pressure fluctuations and corrosive media. Our Nanyi butt welding flange has a reasonable structure and high compressive strength. It is made of all-plastic thermoplastics. It not only has high corrosion resistance, but also has stronger welding. In addition, the product size specifications are also very complete, ranging from DN15 to DN600.

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