Flat plate gate valve is a kind of sliding valve with parallel gates as closing parts. The closing member can be a single gate or a double gate with a spreading mechanism. The pressure of the gate to the seat is controlled by the pressure of the medium acting on the floating gate or the floating seat. If it is a double gate flat plate gate valve, the spreading mechanism between the two gates can supplement this compression force.

Flat plate gate valve can be divided into manual flat gate valve, pneumatic flat gate valve and electric flat gate valve according to the driving mode. According to the purpose and use of the occasion can be divided into a guide hole flat gate valve, no guide hole flat gate valve, oilfield flat gate valve, pipeline flat gate valve and gas flat gate valve.