Butterfly Valve PF Series

features

۱, full liquid
valve volume is small, through the flow of large and no leakage, but before the
switch must first pressure relief can be opened.

۲. The filling
valve is generally used as the oil suction and discharge valve between the
hydraulic cylinder and the oil tank. In the quick running process of a large
press, oil is sucked from the oil tank.Prevent the oil from the cylinder into
the tank when pressurized and reverse the oil from the cylinder to the tank.It
is often used in large presses and injection molding machines for filling oil
into the cylinder when the oil tank, so as to achieve rapid movement in the use
of small pump conditions.When the cylinder is fast-forward, a large amount of
liquid is filled into the cylinder from the tank. In the process of
pressurization, the cylinder can be cut off and the oil is indeed returned to
the tank. When the cylinder returns, the pilot control pressure oil forces the
filling valve to open, so that the oil in the cylinder is drained back to the
tank.