Lift check valve refers to that the disc is opened or closed automatically depending on the flowing of media. Lift check valve is used to prevent media from flowing backward. The disc of life check valve is falling on the sealing face of valve seat. Except for disc lifting freely, the other parts of the check valve are the same as those of globe valves. The pressure of fluid raises the disc from the sealing face of seat. When the media flow backward, the disc falls on the seat and cuts off flowing. Just like globe valve, the passageway of life check valve that media flow through is narrow. So, pressure drop through lift check valve is higher than that through swing check valve.
China check valve manufacturer Landee provides lift check valve having various dimensions to meet different requirements: stainless steel/cast iron/forged steel, API/DIN/EN, etc.
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