Fig. No.
04
Fig. No.
05
foundation bolt
grout
dam for grout
sleeve
wedge
foundation
discharge head
mounting flange
dam for grout
precision level
discharge head
6 of 10
Subject to change without prior notice
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
VERTICAL TURBINE PUMP - NVT SERIES
Ref. No. NVT-IOM/2020/V.01
frame (dam) on the foundation enclosing an area around the discharge head base that includes all alignment wedges to
retain the grout between the base mounting flange and the foundation (refer Fig. No.
05
). Recommended dam height
is approximately
1
/
2
inch (
12
mm). Follow grout manufacturer’s instructions for other grouting procedures and pour
the grouting material into the dammed-in area up to the level of dam and force it between the discharge head and the
mounting flange align with the foundation bolts. Continue to lower the pump assembly until the bolts enter the holes
in the base. Place wedges under the discharge head base mounting flange adjacent to the bolt holes, one under the each
of the four sides. For structural foundations use shims under the corners. Lower the hoist until the full weight of the
pump assembly is resting on the wedges or shims on the foundation.
Remove the slings. Hand tighten the anchor bolt nuts. By adjusting the wedges or shims and nuts on the anchor bolts,
adjust the discharge head flange center line to the correct elevation. While maintaining the correct elevation adjust the
nuts and wedges or shims to achieve the required levelness. Level the pump in two directions at
90
° on the machined
top surface of the discharge head (refer Fig. No.
04
). The levelness tolerance is
0.005
inches per foot. Build a barrier or
