Pulsafeeder Pulsar Shadow Manual do Utilizador descarregar pdf (Página 11)

1.5 Control Assembly

Figure 5

PULSAR Shadow

pumps incorporate a lost motion style of stroke length adjustment to limit

diaphragm travel during the suction portion of each stroke. The stroke length setting is indicated

by a (0 - 100) scale located on the top of the unit.

Stroke length is changed by depressing and turning the hand knob. This turns a screw, which

locates a wedge-shaped slider cam to position the follower pin, which in turn limits rearward

travel of the diaphragm.

To increase stroke length, the slider cam is moved downwards. This allows the follower pin to

slide back, increasing the distance the diaphragm can travel with each pump stroke.

To decrease stroke length, the slider cam is moved upwards. This moves the follower pin

forwards, decreasing the diaphragm travel, and therefore the flow rate of the pump.

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Pulsafeeder Pulsar Shadow Manual do Utilizador Página 11