6. Cleaning
6.5.
Cleaning of upper area - D4 SL valve
(fig. 6.5.)
The upper valve shaft is lifted via connection (2), as shown in fig. 4.1.1
on page 6.
Through the lifting of the upper valve shaft, the cleaning fluid flushes
over the upper seat seal and the upper valve seat into the leakage
chamber and cleans this area. The cleaning fluid is drained off to the
bottom in a depressurized state.
The lifting stroke is limited by a stop in the actuator.
6.6.
Cleaning of lower area - D4 SL valve
(fig. 6.6.)
The lower valve shaft is lifted via connection (3), as shown in fig. 4.1.1
on page 6.
Through the lifting of the lower valve shaft, the cleaning fluid flushes
over the lower seat seal into the leakage chamber and cleans this area.
The cleaning fluid is drained off to the bottom in a depressurized state.
The lifting stroke is limited by a stop in the actuator.
fig. 6.5.
fig. 6.6.
10
WCB_D4_D4SL_sch5_US.indd
D4 / D4 SL Schedule 5 Series
Double Seat Mix Proof Valves
Instruction Manual: US - rev. 0
Waukesha Cherry-Burrell
®
brand D4 / D4 SL Schedule 5 Valves
