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The valve can only be fully open
2011-08-24
Is the gate valve
opening and closing parts, ram direction of motion perpendicular to
the direction of the fluid, the valve can only be fully open and fully
closed, can not be adjusted and cut expenditure. There are two gate
sealing surface, the most common mode of gate valve sealing
surface to
form two wedge, wedge angle with the valve parameters vary, usually 50,
the medium temperature is not high when 425