... of operation is manual, gear electric, gas, used in the water, steam, oil medium pipeline. Cast steel are characterized as having either ... , ASME B16.34, DIN3202Flanged ends to ASME B16.5, ASME B16.47, B 5, EN 1092Optional Locking Device or Stem ExtensionSolid or ... 3352, ASME B16.34, API 6D, GOST 5762Material: gray cast iron, GG 25, ductile iron, GG 40, GGG50Seat material: NBR, EPDM, Brass or ...