6
C.
GROUTING
Evenly adjust all anchor bolts, but not too firmly, after first alignment is complete.
The baseplate can be grouted to the foundation. On open type baseplates fill the
internal spaces with non-shrink grout to the top of the baseplate. For closed type
baseplates all the voids under the baseplate must be filled with non-shrink grout.
Grouting holes are provided in the baseplate.
It is desirable to grout all wedges and blocks in place. Anchor bolts should not be
fully tightened until the grout has hardened, approximately 48 hours after pouring.
D.
PIPING
1.
GENERAL
The pump should be installed as close to the reservoir or fluid supply as
possible, with the inlet piping as short and as direct as practical. The minimum
recommended pipe size is 2” (50 mm) for 2x2 manifolds and 3” (80 mm) for
3x2 manifolds. When open supply tanks are used, 3” (80 mm) pipe or larger
may be required for suction piping. This will depend on flow, fluid temperature,
fluid vapor pressure, and losses in elbows, valves and strainers.
Both inlet and discharge piping must be independently supported near the
pump and properly aligned so that no pipe strain is transmitted to the pump
manifold.
WARNING
SUCH PIPE STRAINS COULD RESULT IN STRUCTURAL FAILURE
LEADING TO INJURY.
The inlet piping should slope upward to the pump. A horizontal suction line
must have a gradual rise to the pump. Any high point in the piping will become
filled with air and thus prevent proper operation of the pump. When reducing
the piping to the inlet opening diameter, use an eccentric reducer with the
eccentric side down (flat side up). Never use a straight taper (concentric)
reducer in a horizontal suction line, as it tends to form an air pocket in the top
of the reducer and the pipe.
WARNING
THE PUMP AND PIPING SYSTEM MUST BE PROTECTED FROM THE
EFFECTS OF WATER HAMMER (PRESSURE SURGE) WHEN USING A
QUICK-CLOSING VALVE OR ANY DEVICE CAPABLE OF RAPIDLY
SHUTTING OFF SYSTEM FLOW.
