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THREE-WAY TWO-POSITION BUTTON-OPERATED PNEUMATIC DIRECTIONAL VALVE MECHANISM

Compressed air is supplied from the main to chamber 1 (Fig. a). Chamber 2 is the valve outlet and port 3 is connected to the atmosphere. When button 4 is pressed, compressing spring 5, the plunger linked to the button is pushed off its seat. Air from chamber 1 passes through a row of ports 6 into outlet chamber 2. When button 4 is released, it is returned, together with the plunger, by spring 5 to…