Now 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 hazards to the device project. Therefore, it is necessary to introduce to us 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 repair waste valves to 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 damaging, not only disrupting the market order, but also forming a great potential hidden danger to the construction quality, and causing great damage to the society. It's not enough for us to know its counterfeiting methods, we must also keep our eyes open, no matter how cunning the fox is, it can't fight a good hunter, so I'll tell us 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, the raw material is brass, otherwise it is a counterfeit product.
2. Look at the steel seal, the valve steel seal is pressed on the valve before it passes the heat treatment, 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. Looking at the oil stains, in order to achieve the purpose of anti-rust, the innovative valve will add thick oil stains 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 cheap materials are white in appearance, which is significantly different from the greenish color of the valve steel.
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