How to identify refurbished valves
Nowadays, the valve market is complicated, and unscrupulous traders are making huge profits by refurbishing used valves as new ones, which brings great safety hazards to the installation project. Therefore, it is necessary to know how to identify the refurbished valve. At present, the main methods of refurbishing used valves are as below:
- Use iron and carbon steel to repair waste valves to refill them.
- Stick the registered trademarks of big brand manufacturers on the valve products of local small factories.
- Pretend to be the famous manufacturers, dealers, agents.
- Make steel print, classify ordinary class valves as D-class valves for profiteering.
The refurbishment of the valve is extremely harmful, which not only disturbs the market order, but also causes great hidden dangers to the construction quality, even to the society. It is not enough just to know the means of counterfeiting. We must also keep our eyes open. The foxes who are squatting can't beat the hunters. Let me tell you how to identify the refurbished valves.
- Check the color. The refurbished valve has color very different from the original product. These low-cost materials are whiter than the good ones.
- Check the stamp. The genuine valve stamp was pressed before the valve is heat treated, using professional stamp printing technology, so the font is clear. The font on refurbished valve is uneven and confusing.
- Check the oil traces. In order to achieve anti-rust, thick oil will be added on the surface of the counterfeit and refurbished valves, which will reduce the smoothness of the valve body itself.
- Check the disc. Refurbished valve discs normally have polished marks and rust.
- Remove the stem nut and check the material of the lock nut inside. The genuine brand valves are made of brass, otherwise it is a counterfeit.
Hope that we can provide some help for our friends who are engaged in engineering installation and procurement, and we jointly resist the counterfeit valves to ensure the construction quality is safe and effective.
