Nowadays, the valve market is mixed, and unscrupulous traders are making huge profits. The counterfeit and refurbished valves are shoddy, which brings great safety hazards to the installation project. Therefore, it is necessary to introduce the inspection to identify the refurbished valve. At present, the main methods of valve fraud in dealers in the valve market are as follows:

     1. Use iron and carbon steel to make valves and repair waste valves to refill them.

     2. Put the valve products of local small factories into the registered trademarks of big brand manufacturers.

     3. fake the famous manufacturers, dealers, agents, hanging sheep head selling dog meat.

     4. the production of steel printing, the ordinary level of valve typing into a D-class valve, profiteering.

The refurbishment of the valve is extremely harmful, which not only disturbs the market order, but also causes great potential hidden dangers to the construction quality, and is extremely harmful to the society. We only know that the means of counterfeiting is not enough. We must also polish our eyes. The foxes who are squatting can't beat the hunters. Let me tell you how to identify the refurbished valves.

    1. look at the color, the refurbished valve in the color is very different from the original product, these low-cost materials in the appearance of the color is mostly white, which has a more obvious difference with the valve green.

    2. look at the stamp, the genuine valve stamp is pressed before the valve has not been heat treated, using professional stamp printing technology, so the font is clear. The refurbished valve font is uneven and confusing.

    3. look at the oil traces, counterfeit and refurbished valves in order to achieve the purpose of anti-rust, will add thick oil on the surface of the valve, which will reduce the smoothness of the valve body itself.

    4. look at the ram, refurbished valve rams generally have polished marks and rust.

    5. Remove the upper end nut and the identification plate of the valve stem and look at the material of the lock nut inside. The genuine material is brass, otherwise it is a counterfeit.

I hope that I can provide some help to my friends who are engaged in engineering installation and procurement, and jointly resist the renovation of counterfeit valves to ensure the safety and efficiency of construction.