High Pressure ASME API Flange Gasket 1. Octagonal, Oval or lens 2 ... 3. R11-105,RX20-215 BX150-303 4.Swift Delivery High Pressure ASME API Flange Gasket1.shape: Octagonal, Oval or lens2.type ... inch1/2-inch244.certificate:API 6A, ISO9001:2000 , AZ safety5.pressure: PN2.0(CLASS150)-PN42.0(CLASS2500)6.standard: API 6A ... with API Standard and meet our customer's demands. High Pressure ASME API Flange Gasket