3.2.1.3 Receiving the pig
Fig.10:
Pig in receiving position
Prerequisite:
•
V3.1, V4.1 and V4.2 are still activated or must be activated and the
corresponding position feedbacks are active. Only then can the pig be sent
from the other pig station.
•
The pig position is detected by means of a magnetic switch E1.2.
•
The stroke speed when removing the pig must be slow (≤0.3m/s), so that the
pig can be safely removed along the full path together with the three-armed
pig clamp. At connection V3.2 of the pig actuator there is an adjustable
throttle check valve for reducing the inflowing air throughput.
Carry out the following steps:
1.
Deactivate V3.1.
2.
Activate V3.2.
•
Pig leaves position E1.2. Magnetic switch E1.2 inactive
•
Pig detection via E1.1 active. Pig is in the production/CIP position.
•
Position feedback D1.2 active. (Initiator illuminated).
3.
Deactivate V4.1 and V4.2.
®
Pig retainers close.
4.
Deactivate the feed for the pig propellant to the opposite pig station.
5.
Deactivate V3.2.
®
Air/air actuator V3 is not actuated.
Position feedback D1.2 inactive. No position feedback active at actuator
V3.
Pig detection via E1.1 must remain active.
®
Done.
Description
Functional description
430BAL009974EN_3
22
23.07.2019
