Installation Of Product-Wetted Seals And Assembly Of The Valve - SPX FLOW APV D4 Instruction Manual

APV
APV_D4_D4SL_GB-3_022024.indd
fig. 11.3.
24
25
11
1
14
22
11.
11.3.
operating cam
lower shaft
!
4 screws
1. Only applies for sizes DN40-100, 1,5"-4": Install the guide ring (12)
23
2. Install the lower shaft seal (11), DN125/150,6" also (11.1), in the
7
3. Install the quad ring (14) in the upper shaft (2) and lower shaft (3).
operating cam
upper shaft
4. Insert the middle seal (9) in the upper shaft (3) using the assembly
5. Insert the 2 seat seals (10) in the grooves of the upper shaft (2) and
17
6. Install the shaft seal (11) and the two guide rings (12) in the shaft
6
7. Slide the shaft bearing (4) over the balancer of the upper shaft (2).
12
4
8. Slide the upper shaft (2) and the shaft bearing (4) through the yoke
2
9. Align key and fasten the upper valve shaft (2) with the lock washer
detail x
3
15
!
10. Screw the operating cam on the upper shaft.
11. Ensure the key is secure on the guide rod. Slide in the guide rod (7)
11
12. Screw in the stop screw (23) until it stops.
12
detail x
13. Slide the lower valve shaft (3) on the guide rod (7). Align the lower
10
14. Fasten the adapter on the actuator with the 4 screws and ensure
9
10
15. Screw the operating cam on the guide rod (7).
Service Instructions
For the Disassembly/Assembly tools, see chapter 13.

Installation of product-wetted seals and assembly of the valve

Note!
Make sure that all seals and bearing surfaces in
the product area are slightly greased before
their installation.
in the lower flange of the housing (1) using a double joint forceps or
long nose pliers.
lower housing flange. For the small size, we recommend using the
2 insertion tools, see chapter 13.
tool (see chapter 13.2).
lower shaft (3).
bearing (4).
(6) and actuator (17).
(25) and safety nut (24). Hold the lock washer (25) with a SW30
wrench to keep the lock washer from turning.
Tightenting torque: Md = 40 Nm
Caution!
Overtightening of the safety nut could result in
thread damage on the upper shaft.
from the top through the actuator (17) until it stops.
Tightening torque Md = 10 Nm
The stop screw must be flush with the top of the collar (D4) or piston
(D4 SL).
shaft to the key on the guide rod and fasten it with the safety nut
(15). Tightening torque: Md = 40 Nm
that the air fittings on the CU will align properly with the air fittings
on the D4 valve.
GB
Double Seat Mix Proof Valve
APV DELTA D4 / D4 SL
Instruction Manual: GB - rev. 3