How to identify flange quality

Shop around. How do you compare? Just comparing prices? Can you guarantee the quality of the flange you buy? The following flange manufacturer teaches you how to identify the quality of the flange. In order to buy more cost-effective flange products.
1. Price comparison, when much lower than the market price. Quality cannot be guaranteed;
2. Whether the material is qualified needs to be detected by instruments, which can not be distinguished by the naked eye;
3. Hardness test, especially forged flange, high pressure flange, the production of blank forging process, in order to achieve enough hardness, also need instrument detection;

4. Naked eye observation, the need to have a comparison of flanges, take two pieces of flange price difference (more formal flange manufacturers and the sales department zero flange) put together, the naked eye can see how the quality.
5. A caliper is needed for dimensional measurement. Whether the inner diameter is larger, whether the outer diameter is smaller, and how much thinner is the thickness?
Shanxi Donghuang Wind power Flange manufacturing Co., LTD is a professional manufacturer of flanges. Brand manufacturing, quality worry-free, looking forward to cooperating with you.