59
VERSION 10/2018
ORDER NUMBER DOC 2339321
.
– Relieve air pressure in accordance with the operating manual for pump B.
– Slowly open the return valve of pump B. When no further overpressure is
detected, close the return valve again.
– Point the spray gun into the grounded metal tank for return product.
– Release and open spray gun to relieve the pressure. Avoid splashback.
– When no further overpressure is detected, close and secure the spray gun.
8.13. Close product valve by pressing [Stop].
9.
Flushing and pressure tightness test for flushing pump:
9.1. Open return valve of flushing pump.
9.2. Slowly open the ball valve of the flushing pump.
9.3. Slowly turn the air pressure up on the pressure regulator of the flushing pump.
Only turn up the air pressure until the pump is running normally
(approx. 0–0.05 MPa; 0–0.5 bar; 0–7.25 psi). Be ready to switch from air to
flushing agent and prevent back spray.
9.4. Close the ball valve of the flushing pump again as soon as clean flushing agent
comes out.
9.5. Close return valve of flushing pump again.
9.6. In sub-menu, select flushing valve AS:
A
and press [Start].
9.7. Point the spray gun (preferably without nozzle) into the grounded metal tank
for return product and open carefully.
9.8. Slowly open the ball valve of the flushing pump. Be ready to switch from air to
flushing agent and prevent back spray.
9.9. Flush until the hose content has been emptied and clean flushing agent comes
out.
9.10. Close and secure the spray gun.
9.11. Gradually increase pressure in the flushing pump with the pressure regulator
until maximum pressure is reached. Maintain the pressure for 3 minutes and
check all connection points for leaks.
9.12. Relieve pressure of flushing agent circuit:
– Relieve air pressure in accordance with the operating manual for flushing
pump.
– Slowly open return valve of flushing pump. When no further overpressure
is detected, close the return valve again.
– Point the spray gun into the grounded metal tank for return product.
– Release and open spray gun to relieve the pressure. Avoid splashback.
– When no further overpressure is detected, close and secure the spray gun.
9.13. Close flushing valve by pressing [Stop].
9.14. If there is a separate B flushing valve (controller 2 or 3): Select flushing valve BS
in the sub-menu
B
and then repeat steps 9.7 to 9.13.
