1. Technical date: Size: dn50-dn2600 Nominal pressure: pn10/pn16 Operation temperature: -10¡æ¡«150¡æ Suitable medium: watersewageseawatergasfoodoilsetc. 2. Standard Design standard: gb/t 12238-2008 Structural length: gb/t 12221-2005 Top flange dimensions: iso5211 Face to face dimensions: gb9112din2501bs4504iso2084ansi125 Type of connection: flange type Dn50-dn2600