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.
4.1.2 Foundation requirements
Pump foundation
• A substantial foundation and footing should be built to suit local conditions and form a
rigid support to maintain alignment.
• The foundation must be able to absorb any type of vibration and form a permanent,
rigid support for the unit.
• If the foundation is installed over the floor, it must be properly bonded and tied to the
floor.
Foundation recommendations for 300 hp [220 kW] and smaller pumps and motors
• Floor weight can be included in the Pump Foundation weight calculation within the
boundary of the Pump Foundation if properly attached/bonded to the floor. Base plate
grouting weight can also be included in the pump foundation weight.
• Pump Foundations should extend 3” (76 mm) or more from pump base plate edges.
• The Pump Foundation width should include sufficient width to cover a 30 degree rule.
• Pump Foundation construction minimum requirements: 3000 psi (200 bar) concrete
with steel re-enforcement.
• Pump Foundations should be a min of 1” (25 mm) above the floor to prevent water
collection around the pump base plate.
Foundation recommendations for 300 hp [220 kW] and larger pumps and motors
• Floor weight can be included in the Pump Foundation weight calculation within the
boundary of the Pump Foundation if properly attached/bonded to the floor. Base plate
grouting weight can also be included in the pump foundation weight.
• Pump Foundations should extend 6” (152 mm) or more from pump base plate edges.
• Pump Foundation width should include sufficient width to cover a 30 degree rule.
• Pump Foundation construction minimum requirements: 3000 psi (200 bar) concrete
with steel re-enforcement.
• Multiple Larger Pumps on a common Pump Foundation is not a recommended
practice due to machine vibration from the operating unit possibly damaging the idle
units.
• Pump Foundations should be a min of 1” (25 mm) above the floor to prevent water
collection around the pump base plate.
Pump Foundation Width 30° Rule
Figure 3: 30° Rule
4 Installation
18 e-XC INSTRUCTION MANUAL
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