What Is Blind Flange

The general understanding of blind flange plate products is that the flange without middle hole is a product without inner diameter. Such blind flange an explanation is also correct. However, it can not be generalized. In general, blind flange can be understood in this way. But it's not exactly accurate. Here is from the perspective of thickness. Have the same thickness, also have different thickness.blind flange Products of the Ministry of chemical industry, which is a standard we often use. Open the 1997 standard, which is slightly older, but the meaning is the same. Let's look at the European standard blind flange products above. We know that this is also a product corresponding to our national standard blind flange products. But there is something strange about the standard of the blind flange  book, which may be that the editor didn't notice it at that time, or he didn't take it seriously when he was editing, or it would not be able to explain it.Blind flange16KG this is a common standard pressure, large or small. In the 1997 standard, the flange 16KG is 10-600. It is said that if there is a flange, there must be a blind flange plate, but on the contrary, there is a blind flange plate. The blind flange specification is 600, and then it is gone upward. Here we are talking about blind flange plate type flat welded steel pipe products, which are represented by pl. Let go of these first. Even when blind flange comes to thickness, the regulations are inconsistent. For example, the thickness of 10-250 is the same. If you go up, there will be a difference. The product flange of 600 is 52 thick, the blind flange plate is 44 thick, and the thickness of 500 is 46-36. It seems that the larger the product, the blind plate product is thinner than the flange. It seems to be such a concept. The largest specification of blind plate is 1200, which is incompatible with flange products. If there are users who need 800-1200 such flange products, will there be no 16KG? As a manufacturer, we just say it according to our own understanding. More is to produce in strict accordance with standards.