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(Class150～900/PN1.0～16.0MPa, working temperature -29～121℃) Oil and natural gas transmission pipelines. Flat gate valves with guide holes also facilitate pipeline cleaning.

The valve seat adopts an O-ring seal and a floating valve seat structure that applies preload force, so that the inlet and outlet of the flat gate valve are sealed in both directions;

It adopts floating valve seat, bidirectional opening and closing, reliable sealing and flexible opening and closing.

The flat gate valve is a sliding valve whose closing part is a parallel gate. The closing member can be a single gate or a double gate with a spreading mechanism in between.