Torque Values; Installation Instructions - Grundfos SRP Instrucciones De Instalación Y Funcionamiento

6.2 Torque values

All nuts and screws used for the installation must be made of
stainless steel.
Use grease (Alu-paste) together with a spring washer or lock nut;
otherwise, use Loctite or a similar product for lubrication and
locking.
All stainless-steel nuts and screws should be tightened to the
following torquevalues:
Screws F-Class 70
[lbf.ft (Nm)]
M6 6.5 (8.8)
M8 15.8 (21.4)
M10 32.5 (44)
M12 54.6 (74)
M16 135 (183)
M20 273 (370)
When mounting the hub/propeller, use lock washer (pos. 1107),
and tighten the two shaft nuts (pos. 1106) to a torque of
37 lbf.ft (50 Nm). See fig. 5.
Fig. 5 Shaft nuts on propeller shaft

6.3 Installation instructions

See section 6.2 Torque values and fig. 4.
1. Weld the connection flange to the cast-in pipe end in the tank.
2. Weld the profile section to the connection flange and pipe end.
Place it in position 12 o'clock.
2.5x2.5x1/8 in
A
Fig. 6 Profile section on connection flange
3. SRP.xx.32.xx: Weld the guide claws to the connection flange.
Screws F-Class 80
[lbf.ft (Nm)]
8.7 (11.8)
21.2 (28.7)
42.8 (58)
4. Drill the holes for the mounting screws for the top mounting
73.8 (100)
180.7 (245)
5. Mount the screws and fit the top mounting bracket.
364.4 (494)
6. Depending on the length of the guide rail, weld the turnable
1106
1107
7. Position and align the guide rail with the profile section on the
8. Remove the epoxy insulator and the turnable metal part by
9. Adapt the outside of the square epoxy insulator to the inside of
10.Place the guide rail on the profile section on the connection
11.Fit an intermediate mounting bracket to the turnable part
12.Drill the holes for the mounting screws for the crane foot in the
13.Mount the crane foot and fit and tighten the screws.
See fig. 7.
Fig. 7 Position of guide claws
bracket in the concrete.
part of an intermediate mounting bracke (pos.19, fig. 4) to the
guide rail.
A
C
B
Fig. 8 Top mounting
connection flange. Shorten the column profile (pos. 2) to the
correct length to match the position of epoxy insulator (pos. C)
at the top mounting bracket. A gap of 0.2 to 0.4 in (5 to 10 mm)
between collar of epoxy and guide rail is optimal.
See fig. 8.
removing the center screw (pos. A) and the two mounting
screws (pos. B).
the guide rail. The epoxy insulator must fit tightly inside the
guide rail.
flange and mount the top end with the epoxy insulator and the
turnable metal part on the already installed top mounting
bracket. Tighten the three screws (pos. A) and (pos. B) in the
desired position.
welded on to the profile tube in step 6. Drill holes in the tank
wall, fit screws in the bracket and tightening the screws.
concrete.
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