Design

Three positions actuator provide an operation of 0˚,45˚,90˚or 0˚,90˚,180˚. The midway position is adjustable and is achieved by a mechanical stop of movement on the two auxiliary pistons. Following is the operating principle:

1, Fully closed position
From following chart we can see that this position is obtained when air is supplied to port 4 and port 2 is in the state of exhaust sir.

2, Fully open position
From following chart we can see that this position is obtained when air is supplied to port 2 and port C, mean time port 4 and port D are in the state of exhaust sir.

3, Midway position
From following chart we can see that this position is obtained when air is supplied to port 2 and port D, mean time port 4 and port C are in the state of exhaust sir. In fact that the midway position is achieved by a mechanical stop of movement on the two auxiliary pistons.

Dimension

                                                                                                                                                                                                                                                                                      unit:mm

Model A B C D E F G H I K L M N O Z Air Connection B-63 60 72 88 118 12 18 Ø50 Ø70 M6x10 14 322 10 80 M8x13 18 G1/8" B-75 65 83 100 130 12 18 Ø50 Ø70 M6x10 14 338 10 80 M8x13 18 G1/8" B-92 76 104 120 150 18 25 Ø50 Ø70 M6x10 17 432 14 80 M8x13 21 G1/8" B-125 103.5 140 155 185 28 40 Ø70 Ø102 M8x13 22 522 20 130 M10x16 26 G1/4"(1/4"NPT) B-160 128 175.8 197 227 36 40 Ø102 Ø125 M10x16 27 708 28 130 M12x20 31 G1/4"(1/4"NPT)