Nowadays, the valve market is a mixed bag of fish and dragons, and illegal vendors counterfeit and refurbish valves to make huge profits, posing great safety risks to installation projects. Therefore, it is necessary to introduce the inspection of identifying refurbished valves to everyone. At present, the main methods of valve fraud among distributors in the valve market are as follows:
1. Manufacturing valves with iron and carbon steel and repairing defective valves with substandard quality.
2. Label the valve products of local small factories with the registered trademarks of large brand manufacturers, using fake products as false ones.
3. Counterfeiting users, distributors, and agents of famous factories, selling dog meat with sheep's heads.
4. Produce steel seals, convert ordinary grade valves into D-grade valves, and make huge profits.
Valve refurbishment poses great harm, not only disrupting market order, but also posing great potential risks to construction quality and posing great harm to society. We only know that its fraudulent methods are not enough, and we must also polish our eyes. Even a cunning fox cannot fight a good hunter. Below, I will tell you how to identify refurbished valves.
1. Looking at the color, refurbished valves differ greatly from genuine products in terms of color. These low-priced materials are mostly white in appearance, which is quite different from the greenish color of valve steel.
2. Looking at the steel seal, the genuine valve steel seal is embossed before the valve is overheated, using professional steel seal technology, so the font is clear. The font of the refurbished valve is uneven and blurry.
3. To prevent rust, counterfeit and refurbished valves will be coated with thick oil stains on the surface, which will reduce the smoothness of the valve body.
5. Looking at the gate, refurbished valve gates generally have polished marks and rust.
6. Remove the nut and identification plate on the upper end of the valve stem, and check the locking nut material inside. The genuine material is brass, otherwise it is a counterfeit.
I hope to provide some assistance to friends engaged in engineering installation and procurement, to jointly resist the refurbishment of counterfeit valves, and ensure the quality, safety, and effectiveness of construction.