Rotary valve definition and its classification, flywolf know

Rotary valve is also called star valve, it is a kind of by rotating parts such as you rotate it 90 degree rotation flap valve from opening a change is a pneumatic control valve. Usually divided into two major categories of straight programming and rotary valve. Straight trip valve through a linear motion components such as gate to allow or cut off the logistics. Go straight the program of the cut-off valve, gate valve, diaphragm valve, etc. Rotary valve through a rotating parts to allow or cut off the logistics. Rotating parts can rotate 90 degrees of rotation valve 1/4 rotary valve. Sometimes a quarter of the classification of the rotary valve Angle less than 270 degrees can be expanded to the rotation of the valve. By definition you can see, the rotary valve is a rotating parts such as valve rotates 90 degrees rotation flap in open a change is a rotary valve. Rotary valve according to pattern classification has three types: butterfly valve, ball valve and the plunger valve. 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) , 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 drop 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. 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.