Product caliber: DN100~DN600 Pressure grade: PN16~PN50 Main material: austenitic stainless steel, valve body structure: butt weld seal surface form: hard seal operation mode: hydraulic, electric, pneumatic, turbine transmission standard Design Standard: API609, ASME B16.34 Body Structure: Manufacturer's Standard Flange: ASME B16.25 Temperature and Pressure Rating: ASME B16.34 Test and Inspection: API 598, BS 6364 MSEC SPE77/200