... media, are suitable of pressure, temperature and diameter range, especially for medium and large diameter pipes. Nominal Size DN15-DN800 Nominal Pressure 1 ... having either a rising or a non-rising stem.Design and manufactured under API 600, ISO 9001:2008, ASME B16.34 ... 3352, ASME B16.34, API 6D, GOST 5762Material: gray cast iron, GG 25, ductile iron, GG 40, GGG50Seat material: NBR, EPDM, Brass or ...