Operating manual High-pressure double diaphragm pumps Cobra 40-10; Cobra 40-25
7 Operation
40
Order number 2340851 | Edition 05/2022
4. Place the suction hose (7) in the grounded tank with flushing agent (6).
5. Adjust the pressure regulator (1) to approx. 0.05 MPa; 0.5 bar; 7.25 psi.
Flushing via the return valve
1. Open the relief valve (3).
2. Slowly open the ball valve (2).
3. Adjust the air pressure on the pressure regulator (1) so that the pump runs smoothly.
4. Flush the system until clean flushing agent flows into the tank (5).
5. Close ball valve (2).
6. As soon as there is no pressure remaining in the system, close the relief valve (3).
Note:
During the flushing procedure, briefly press both valve depressors (V).
B_01219
V
Flushing via spray gun
1. In case of AirCoat systems, carry out the basic flushing without atomizing air.
2. Point the spray gun (3), without nozzle, into the tank (5) and pull the trigger.
3. Slowly open the ball valve (2).
4. Rinse until clean flushing agent flows from the spray gun.
5. Close ball valve (2).
6. As soon as there is no pressure remaining in the system, close the spray gun. Secure the
spray gun.
External Cleaning
1. Clean the outside of the system.
2. Fully assemble the system.
3. Relieve the pump's pressure according to Chapter Pressure Relief / Work Interruption
38].
4. Dispose of the contents of the tanks according to the local regulations.
7.6 FILLING WITH WORKING PRODUCT
After basic flushing, the pump can be filled with working product.
4
Proceed according to Chapter Filling the Empty Pump [
product instead of flushing agent.
