The rotary valve can be divided into three types: butterfly valve, ball valve and the plunger according to pattern classification.
1), butterfly: through the baffle or leaf centering on the axis of rotation angle to control the direction of flow. Baffle or leaf looks a bit like a butterfly. Butterfly valves can be cut off or adjust action, suitable for pulp or fluid with suspended solids.
2), the ball valve: the valve core is a round hole, the form of a ball when the valve is in open a allow fluid to flow through, the ball rotate 90 degrees to cut off the logistics form. Ball valve can be cut off and regulating role, its pressure declination is small, suitable for viscous and corrosive fluid, slurry flow at low temperature. Ball valve can also be used for high temperature and high pressure fluid.
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3), the plunger valve: the valve core is intermediate belt round hole of the conical or cylindrical plunger, when the plunger hole and fluid can flow in the same direction, when rotated 90 degrees in any direction with plunger flow is cut off. Plunger valve is typically used for on/off control.
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