WAGNER TwinControl - BASIC FLUSHING AND PRESSURE TIGHTNESS TEST (continued)

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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 ushing pump:
9.1. Open return valve of ushing pump.
9.2. Slowly open the ball valve of the ushing pump.
9.3. Slowly turn the air pressure up on the pressure regulator of the ushing 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
ushing agent and prevent back spray.
9.4. Close the ball valve of the ushing pump again as soon as clean ushing agent
comes out.
9.5. Close return valve of ushing pump again.
9.6. In sub-menu, select ushing 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 ushing pump. Be ready to switch from air to
ushing agent and prevent back spray.
9.9. Flush until the hose content has been emptied and clean ushing agent comes
out.
9.10. Close and secure the spray gun.
9.11. Gradually increase pressure in the ushing 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 ushing agent circuit:
– Relieve air pressure in accordance with the operating manual for ushing
pump.
– Slowly open return valve of ushing 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 ushing valve by pressing [Stop].
9.14. If there is a separate B ushing valve (controller 2 or 3): Select ushing valve BS
in the sub-menu
B
and then repeat steps 9.7 to 9.13.