API Lug Type Triple Offset Butterfly Valve Size: NPS 2~48 Pressure: Class150LB~600LB Material: WCB, CF8, CF3, CF3M, CF8M, CF8C,ect. Design & Manufacture: API 609, ANSI B 16.34 Face to face dimension: API 609 Flange Dimension: ASME B16.5, ASME B16.47 Test and Inspection: API 598 Main parts and material Main type and dimension