Size: NPS 2" to 12" Pressure: Class 150-Class300 Material: WCB, LCB, CF8, CF8M, CF3, CF3M Type: Centre Line Patten, Double Eccentic Patten, Three Eccentic Patten, Multiple Layers. Operated Way: Lever, Gear, Pneumatic, Electric. Standard: Manufacture: API 609, BS 5155 Face to Face: API 609, BS5155 End Connection: ASME B16.5, DIN2543-2545 Test and Inspection: ISO5208, BS6755 We can design and manufacture various kinds of butterfly valves according to customer's requirements.