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- Custom
Fabrication
- CNC
Machined up to 240” long
- Meets
A.N.S.I. Specifications
- P.I.P
Style Bases
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- Stainless
and Carbon Steel, Aluminum
- Epoxy
Painting and Hot Dip Galvenized
- Form
Plated Bases
- Complete
Assembly and Alignment Services
- Economically
Priced for Today’s Market
- Stress
Relieving
- Custom
Guards
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The
function of a baseplate is to provide a foundation under a
driver and its driven equipment that maintains alignment
between the two. A baseplate must allow for initial mounting
and alignment of equipment, service handling during
transportation and be installed with a minimum of difficulty.
It must also ridgily maintain final alignment during full load
operation. | |
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Base
plate design significantly influence the reliability of the rotating
equipment that it supports. Equipment reliability in turn
impacts total operation cost, including: spare parts usage,
maintenance labor, potential process losses, operating expenses and
power consumption. Today, customers demand equipment that
operates reliably for extended periods of
time. |
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Mean
Time Between Planned Maintenance (MTBPM) can be extended by
reducing internal stress load and vibration on process
equipment. Misalignment of shafts can add stress to the
bearings. Added stress caused by shaft misalignment
reduces bearing, coupling, and mechanical seal life.
This stress increases maintenance and downtime costs, and it
increases power cost resulting from added motor torque.
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Based
plate flatness is a major factor in aligning the shafts to critical
tolerances in a timely, cost effective manner. A slight bend in a
baseplate can cause several hours of effort to achieve proper shaft
alignment. It is recommended that baseplate have a surface flatness
machined coplanar at 0.002 in./ft. |
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The
baseplate must be designed rigid enough to minimize bending,
twisting or diaphragming at the center during shipment or
installation. Diaphragming can cause separation of the
base and grout, increase resonance and vibration , and
misalignment of previously aligned shafts. Because
diaphragming may not show up until after the system is
operating and motor torque loads are applied, make sure that
this phenomenon is minimized by added proper reinforcement.
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The
mass of the baseplate affects its capability to dampen vibrations.
The greater the mass the better the distribution and absorption of
vibrations, resulting in increased component reliability.
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Grouted
base plate installations offer maximum rigidity and mass.
Grout is unused with the intention of adding to rigidity and
improving vibration dampening of the installation. Conventional
cement based grout shrinks as it drys and can separate from the
underside of the baseplate. In time, cement based grout can crack
and deteriorate. Low shrink grout should be used to minimize
separation form the base. Proper venting will help avoid development
of air pockets under baseplate. Pockets mean reduce rigidity
and increased vibrations in the equipment.
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Even
though they are costly, epoxy style grout may be used to ensure
installation longevity, superior bonding to the baseplate, minimal
shrinkage and corrosion resistance. |
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Other
Related Products: |
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- Vessels
- Shafts
- Shaft
Sleeves
- Wear
Rings
- Guards
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