Bellows seal gate valve

characteristic: Double-decked corrugated pipe, service convenient, dual seals, position instruction;

application situation: The power plant, the natural gas, the ammonia, the vacuum, the freezing systematic, the hot oil system, the hot water.

valve use the standard: Design manufacture standard: GB12234, API6D;

fac to fac standard: GB1221 ANSI B16.10;

flange standard: JB79, ANSI B16.5;