13. Assembly Instructions And Tools For Seals; Lower Shaft Seal - SPX FLOW APV D4 Instruction Manual

APV
APV_D4_D4SL_GB-3_022024.indd
Assembly tool
(H171889)
assembly mandril
disassembly tip
Assembly stick
(H338450)
1.
Double Seat Mix Proof Valve
APV DELTA D4 / D4 SL
Instruction Manual: GB - rev. 3

13. Assembly Instructions and Tools for Seals

13.1.

Lower shaft seal

For the simple assembly of the lower shaft seal (11), the assembly/
disasssembly tool (H171889) and the assembly stick (H338450)
can be used. These tools are especially recommended for valves
of small series (DN40-65, 1,5"-3") as access to the lower shaft seal
from the top is impossible as a result of the narrow seat.
Caution!
!
1. Slightly grease the shaft seal (11).
2. Use the assembly tool to insert the shaft seal from the top, the wide
side to the front, through the intermediate ring of the housing into
the lower flange housing ball (fig 1.).
3. Position the shaft seal (11) using the groove of the assembly
mandril.
4. Press the shaft seal (11) at one spot in the groove of the housing
flange and continue to press on the shaft seal.
5. Position the groove of the assembly stick on the seal lip. Slightly
turn the stick and position the shaft seal (11) in the groove. Slide
further around the seal lip and insert the shaft seal in a similar
manner until the shaft seal is completely in the groove.
To avoid injuries the disassembly tip must be
covered by the assembly mandril if not used.
2.
GB
25