Nowadays, the valve market is mixed, and illegal traders pretend to be innovative valves to be shoddy in order to make huge profits, which brings great safety risks to the installation project. Therefore, it is necessary to introduce to you the inspection of innovative valves. At present, the main valve counterfeiting methods in the dealers of the valve market are as follows:
1. Pretending to be users, distributors, and agents of major factories to sell dog meat on the head of a sheep.
2. Use iron and carbon steel to make valves and correct waste valves to be shoddy.
3. Make steel seals, and type general-level valves into D-level valves to make huge profits.
4. The valve products of small local factories are marked with the registered trademarks of large brand manufacturers, so as to confuse the real with the fake.
Valve innovation is extremely harmful, not only disrupting the market order, but also causing great potential danger to the construction quality, and great harm to the society. We only know that its counterfeiting methods are not enough, but also must keep our eyes open, no matter how cunning the fox can not fight a good hunter, let me tell you how to identify innovative valves.
1. Remove the nut and identification plate at the upper end of the valve stem, and look at the lock nut raw material inside.
2. Look at the steel seal, the valve steel seal is pressed on the valve before it has been heat treated, and the professional steel seal skills are used, so the font is clear. The font of the innovative valve is uneven and confusing.
3. Looking at the ram, the ram of the innovative valve generally has traces of polishing and rust.
4. Look at the oil stains, pretending to be an innovative valve in order to achieve the purpose of rust prevention, a thick oil stain will be added to the surface of the valve, which will reduce the finish of the valve body itself.
5. Look at the color, the innovative valve is very different from the best products in terms of color, and most of these low-cost materials are white in appearance, which is more obvious different from the greenish valve steel.
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