Guideline
Explanation/comment
When possible, locate the pump below the fluid level. This facilitates priming, ensures a steady flow of liquid, and
provides a positive suction head on the pump.
Make sure there is a suitable power source available
for the pump driver.
If the pump is motor-driven, then the electrical characteristics
of the power source should be identical to those shown on
motor data plate.
The installation must be evaluated to determine that the Net Positive Suction Head Available (NPSH
A
)
meets or exceeds the Net Positive Suction Head Required (NPSH
R
), as stated by the pump performance
curve.
4.1.2 Foundation requirements
Requirements
•
The foundation must weigh at least five times the weight of the pump unit.
•
Provide a flat, substantial concrete foundation in order to prevent strain and distortion when you
tighten the foundation bolts.
•
Allow the foundation to cure for several days before you proceed with the pump installation.
•
The foundation must be poured to within 1.905 – 3.81 cm | 0.75 – 1.5 in. of the finished height.
Foundation bolts
•
Foundation bolts must be embedded in the concrete to a depth of 8â12 in. (20â30 cm) and locked
with either a hook around a reinforcing bar or a nut and washer at the bottom.
•
Foundation bolts must have a sleeve around them at least six times the bolt diameter in length and
at least two bolt sizes larger in ID.
•
If a nut and washer are used for locking, then the washer must have an OD two sizes larger than
the sleeve.
•
Foundation bolts must be sized 3.175 mm | 0.125 in. less than the anchor bolt holes in the base.
Bolt installation diagram
1
2
3
4
5
12–18 in.
8–12 in.
0.75–1.5 in.
1.
Baseplate
2.
Grout
3.
Alternate bolt and washer
4.
Concrete
5.
Bolt sleeve
Figure 8: Bolt installation
4.1 Pre-installation
20
Model 3409 Installation, Operation, and Maintenance Manual
Содержание Goulds Pumps 3409
Страница 1: ...Installation Operation and Maintenance Manual Model 3409 ...
Страница 2: ......