Forged Steel Gate Valve Structure Type: Rising Stem, Non-rising Stem, Single Disc, Double ... B2002, ASME/ANSI B16.5, ASME/ANSI B16.25 6) Test standard: API 598, JIS B2003 7) Structure type: Rising stem ... : Manual, pneumatic, electric, hydraulic and pneumatic-hydraulic Forged Steel Gate Valve