Device Photographs.

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Presentation transcript:

Device Photographs

Cushioned Cylinder Cut Away The double acting differential cushioned linear actuator (cylinder) is used to move and clamp parts. The photograph of the cut-away displays the cushion needle valves and the piston seals.

Cushion Operation In this position, air is allowed to free flow from the cylinder. This animation shows how the cushion works. Air is allowed to free flow from the cylinder via the port for most of the cylinders stroke. When the cushion pin enters the port, the air is forced through the adjustable needle valve. Pressure builds up in the back of the cylinder and the piston slows down. In this position, air must pass via the restriction. This creates the cushion effect.

FRL (Service Unit) The service unit or FRL (Filter Regulator Lubricator) is an essential part of the pneumatic system (remember, not all systems require a lubricator). In the photograph, the filter and regulator are on the left hand side, and the lubricator is on the right hand side.

Restrictor The variable restrictor or throttle is adjusted by means of a small screw on the valve.

5/2 Push Button/Spring DCV The 5/2 push button/spring actuated DCV can be used to directly operate a cylinder to eject parts from a machine for example. The exhaust and inlet ports can be seen on the left hand side in the photograph.

3/2 Roller/Spring DCV The 3/2 roller actuated DCV is a very common valve used to sense the position of components and guards. The output of the valve can be used to signal logic devices such as AND/OR. Indirectly operated DCV’s can also be signaled to switch.

5/2 Solenoid/Solenoid DCV Solenoid operated DCV’s are used where the control and logic functions are generated using and electrical system such as relay control or a PLC.

Time Delay and Sequence Valves Time delays are achieved by allowing air to fill a small space (an accumulator) very slowly via a check valve. At a preset pressure, the 3/2 valve will switch. The time delay valve can be seen on the right in the photograph. Sequences can be triggered by sensing rises in pressure. A pressure rise on the Z input operates the pressure sensing valve, which switches the main 3/2 DCV. The sequence valve can be seen on the left in the photograph.