Made under the UNI 2276 PN. 6 and UNI 2277 PN standard. 10 sizes from DN 15 to DN 150 thin type. Moresello Inox also makes out of standard flanges that are based on drawings which are provides by our customers. Before submitting a purchase order, you will need to verify the sizes and dimension of the following tables and indicate the following information. These are the external diameter, holes internal axis, central main hole diameter, thickness, holes diameter, and their quality.