ZP2V-A�ｭ-�ｭ ZP2V-B�ｭ-�ｭ q w e r t y u u No.0.8 Construction When a workpiece is sucked Initial condition Without workpiece With workpiece When a workpiece is released Valve Spring Element Fixed orifice size Element Closed valve Opened valve Opened valve Workpiece Vacuum air Vacuum air Breaking air Since there is no air flow, the valve remains opened by the spring force. When the workpiece is separated from the vacuum pad, the valve is closed by the air flow, and the suction air can only flow through the fixed orifice. At this time, an amount of air corresponding to the fixed orifice size is sucked. When the workpiece is sucked by the vacuum pad, the suction flow reduces, and the valve is opened by the spring force, which opens the path between the valve and body for suction. When the workpiece is released, the valve is opened by the vacuum breaking air, and the path between the valve and body will open. Valve operating condition Air flow No. 1 2 3 4 5 6 7 Body A Body B Valve O-ring Spring Element Gasket Description Component Parts Material Brass Brass Aluminum HNBR Stainless steel BC NBR + Stainless steel Surface treatment Electroless nickel plated Electroless nickel plated . . . . . Vacuum generator side Vacuum generator side Pad side Pad side . For the mounting direction of the product, refer to 4 on page 1237. Series ZP2V Working Principle 1238