Burkert 6430 Manuel D'utilisation page 4

5 Pilot control with solenoid
5.1 Contents
Pos. Designation
1 Screws
2 Pilot valve
3 O-rings
1)
5 Flat seal 2)
O-rings are not required for DN 8 valves
1)
The flat seal is not included in the scope of delivery
4 2)
DN 12 - 40
DN 8
1
2
5
5.2 Replacing the pilot control with solenoid
note!
Do not loosen the sealed screws on the pilot valve!
→ Disconnect the cable plug.
1
→ At the pilot valve ②, loosen the two unsealed screws ①.
→ Before removing the pilot valve, pay attention to the
arrangement of the pilot valve (see "Fig. 1", page 5).
2
→ Remove the pilot valve ② and the O-rings ③ from the main
valve.
→ Insert the new O-rings ③ correctly into the recesses of the
3 main valve.
Note: The O-rings ③ are not required for DN 8. The pilot valve
② is placed directly on the flat seal ⑤ of the main valve.
→ Place the new pilot valve ② on the main valve.
Please observe the arrangement of the pilot valve (see "Fig. 1",
page 5).
→ Tighten the screws ① (tightening torque 1.5 to 2 Nm).