SPX FLOW APV D4 Instruction Manual page 21

APV
APV_D4_D4SL_GB-3_022024.indd
fig. 11.2.
24
25
11
15
1
14
Double Seat Mix Proof Valve
APV DELTA D4 / D4 SL
Instruction Manual: GB - rev. 3
11. Service Instructions
For the Disassembly/Assembly tools, see chapter 13.
11.2. Removal of product-wetted parts
operating cam
lower shaft
1. Remove the operating cam from the guide rod (7).
2. In order to take off the adapter, remove the 4 screws.
3. Release the lower safety nut (15). Hold the lower shaft (3) with an
4 screws
SW17 wrench to keep it from turning.
4. After removing the nut (15), lift off the lower shaft (3).
23
5. Place the point of the tool along the side of the seat seal (10) and
pull it out of the groove. Take the quad ring (14) out of the groove.
7
6. Remove the stop screw (23).
operating cam
upper shaft
7. Take the guide rod (7) out through the top of the actuator.
8. Remove the operating cam at the upper shaft.
9. Unscrew the safety nut (24). Hold up the lock washer (25) with a
SW30 key to keep it from turning. Remove the lock washer.
17
10. Lift off the actuator (17) with yoke (6).
6
11. Slide the shaft bearing (4) over the balancer of the upper valve shaft
12
(2).
4
2
12. Remove the shaft seal (11), DN125/150,6" also (11.1), and guide
rings (12) from the grooves.
detail x
13. Removing the seals in the upper shaft
3
Place the point of the tool along the side of the seat seal (10) and
middle seal (9) and pull them out of the groove. Take the quad ring
(14) out of the groove.
14. Removing the lower shaft seal from the housing
Place the point of the disassembly tool along the side of the shaft
seal (11) and pull it out through the top of the housing (1).
11
15. Only applies for sizes DN40-100, 1,5"-4": Place the metal point of
12
a hook in the gap of the guide ring (12). Slightly turn the hook to lift
the guide ring (12) out of the groove and housing (1).
detail x
10
9
10
GB
21