The EN 1092-1 / 01 PN16 flanges products produced by the Haokun factory must have an allowance
Our Haokun factory must leave EN 1092-1 / 01 PN16 flanges product allowance, and then use the surplus of the blank processing into the finished product, in the lathe of the processing, the continuous rest in the lathe, the flange plane rest, which makes the blank with the allowance into the finished product you need. In a word: the size of the blank is larger than the size of the finished product, because of the surplus. Our customers have raised a lot of questions. EN 1092-1 / 01 PN16 flanges product outer diameter + surplus, thickness + surplus, inner diameter-surplus, are to ensure that the torus of the flange has sufficient size to produce the finished product, then there is no standard for this surplus, if there is no standard, then our factory surplus is too much, the price will be much higher. Regarding the high price of EN 1092-1 / 01 PN16 flanges products, our factory engineers privately said that there is no standard, but in the highly competitive market environment, every manufacturer of EN 1092-1 / 01 PN16 flanges products is fighting for price, technology and quality. Under such a premise, our Haokun factory has a strict control of the forging technology. For example, the outer diameter of the 250MM flange is usually plus 5 allowance, Inner diameter-5, The + thickness 5,250MM-400MM outer diameter flange is generally plus 6 allowance, Inner diameter-6, Thickness of + 6, 400-650MM outer diameter flanges are generally added with 8 allowance, Inner diameter-8, Thickness of + 8, External diameter flanges of 650-850MM are generally added with 9 allowance, Inner diameter-9, Thickness of + 9, and the like, But also, depending on what the customer needs, EN 1092-1,01 PN16 flanges Product Specific Size, Process, Materials, Especially the non-standard flanges.
