Global Knife Gate valve Manufacturers from USA/Europe/Korea. Sizes: DN 50 to DN 1200 (larger diameters on request) Working pressure: DN 50 to DN 250: 10 kg/cm² DN 300 to DN 400: 6 kg/cm² DN 450: 5 kg/cm² DN 500 to DN 600: 4 kg/cm² DN 700 to DN 1200: 2 kg/cm² Standard flange connection: EN1092 PN10 and ANSI B16.5 (class 150) Note: other flange connections (on request): EN1092 PN6/16/25 BS D and E ANSI 125