Torques; Mechanical Installation - Grundfos SRG Serie Mode D'emploi

5.2 Torques

All nuts and bolt s 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.
Tighten all stainless-steel nuts and bolts to the following torques:
Size
1/4" (M6)
5/16" (M8)
7/16" (M10)
1/2" (M12)
5/8" (M16)
3/4" (M20)
5.2.1 Anchor bolts
Anchor bolts used for mounting components in concrete must
have the following pull-out strength:
Size
1/2" (M12)
5/8" (M16)

5.3 Mechanical installation

See section 5.2 Torques and fig. 2.
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.
2.4 x 2.4 x 0.12
Fig. 3 Profile section on connection flange
8
Bolts
ASTM F593 (V/W)
[lbf (Nm)]
6.5 (8.8)
15.8 (21.4)
32.5 (44)
54.6 (74)
135 (183)
273 (370)
Pull-out strength
[kipf (kN)]
1.35 (6)
3.15 (14)
3. SRG.xx.32.xx: Weld the guide claws to the connection flange.
See fig. 4.
(10)
Fig. 4 Position of guide claws
4. Drill the holes for the anchor bolts for the top fixation bracket
in the concrete.
5. Mount the bolts and fit the top fixation bracket.
6. Depending on the length of the column profile, weld the
turnable part of an intermediate fixation bracket to the column
profile.
A
C
Fig. 5 Top fixation
7. Position and align the column profile with the profile section
on the connection flange. Shorten the column profile (2) to the
correct length to match the position of epoxy insulator (C) at
the top fixation bracket. A gap of 0.20 to 0.40 in (5 to 10 mm)
between collar of epoxy and column profile is optimal. See fig.
5.
8. Remove the epoxy insulator and the turnable metal part by
removing the centre bolt (A) and the two fixation bolt (B).
9. Adapt the outside of the square epoxy insulator to the inside
of the column profile. The epoxy insulator must fit tightly
inside the column profile.
1.0 0.6
31
B