Nowadays, the valve market is full of fish and dragons, and illegal vendors try to make a huge profit by faking and refurbishing the valves, which brings great potential safety hazards to the installation project. Therefore, it is necessary to introduce the inspection of refurbishing valves.At present, there are mainly several ways of valve counterfeiting in dealers of valve market.
1, using iron and carbon steel to manufacture valves and repair waste valves are shoddy.

2, the local small factory valves products are registered trademarks of large brand manufacturers, false.

3, fake famous factory users, distributors, agents, sell sheep's head to sell dog meat.

4, the production of steel seals, ordinary grade valves into D grade valves, profiteering.

Valve renovation does great harm, not only disturbs the market order, but also causes great potential danger to the construction quality, and does great harm to society. We just know that its counterfeiting is not enough. We have to wipe our eyes. No fox can fight a good hunter. Let me tell you how to identify a refurbished valve.

1. Look at the color, the renovated valve in color is very different from the genuine products, these low-cost materials in the appearance of most white color, which has a more obvious difference with the valve steel green.

2. Look at the steel stamp, the genuine valve steel stamp in the valve has not been heat-treated before the press, the use of professional steel stamp technology, so the font is clear. Refurbished valve font is uneven and blurred.

3. Look at the oil stains, fake refurbished valve in order to achieve the goal of rust prevention, then add thick oil stains on the valve surface, which will reduce the body of the valve itself smoothness.

Yu Huo is equal to DN80, and too small valves do not match.

5, look at the gate, renovation valve gate are generally worn traces and rust.

6. Remove the upper end of the valve stem nut and logo plate, look inside the lock nut material, the genuine material is brass, otherwise it is counterfeit.

Hope to provide some help to the friends engaged in engineering installation and procurement, jointly resist the refurbishment of counterfeit valves to ensure the quality of construction safety and effectiveness. (source: Network)