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Series
6100 - Benefits of High-Chrome Construction |
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| Morris
6100 CT wet end material of construction is an iron alloy of 28% chrome.
In its annealed state it is machined to exacting tolerances. A controlled
heat-treating process provides Morris 28HC650 with a final hardness of 650
BHN minimum. |
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| Machined
register fits on all parts |
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- Assures proper
fit & true alignment
- Simplify maintenance
and reassembly
- Dimensional control
assures part interchangeability
- Reduce localized
wear at internal contours & fits
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| Machined
surfaces allow confined o-ring sealing |
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- Improved sealing
versus flat gaskets
- O-ring not exposed
to high velocity wear areas
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| Drilled
and tapped holes eliminate use of "soft metal" inserts |
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- Greater reliability
and serviceability
- Won't pull out
from torque or pipe strain
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| Straight
machined fit impeller bore |
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- Key driven to assure
positive torque transfer
- Does not require
"re-babbitting” or trial fitting
- No bore failure
as result of starting/stopping torque
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| History
of performance |
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selection of 28% high chrome iron construction for the 6100 CT is backed
by a long history of slurry pump design & manufacture. High chrome has
been the standard for slurry pumps. where abrasion resistance is directly
related to operational savings. Industrial, process and mining operations
have been specifying high chrome iron because every minute of downtime can
be measured as an opportunity cost. Specifying high chrome construction
assures the highest level of reliability for critical applications. |
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| Testing
of materials |
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| Morris
has conducted extensive materials testing that confirms the benefits of
high chrome construction in abrasive applications. One test compared four
materials in a simulated field condition. Cast Iron. Ni-Hard. Cryogenically
Treated Ni-Hard and High Chrome Iron were subjected to high velocity rotation
in concentrated silica slurry to replicate long-term abrasive operation.
Test results indicate that high chrome iron exhibited superior relative
wear resistance by a factor of nearly 1.5. For reprints of this test, contact
Morris Pumps. |
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| Hardness
doesn't tell the whole story |
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| Brinell.
Rockwell and Vickers testing for hardness are all excellent measures of
superficial hardness, but are not necessarily an accurate measure of abrasion
resistance. These conventional tests do not account for the hardness depth
or the "toughness" factor. While Ni-Hard and other high alloys
may have comparable surface hardness, extensive wear tests and field experience
have shown that hardened high chrome iron has a more consistent hardness
throughout the thickness of the casting, leading to increased wear life
and a longer operation. |
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| The
high chrome content of 28HC650 contributes to its superior corrosion resistance
compared to Ni-Hard. 28HC650 has approximately twice the tensile strength
of Ni-Hard #1, and is also less brittle. A more consistent carbide dispersion
in combination with state of the art foundry handling, heat treating and
stringent cooling cycle management gives 28HC650 a finitely controlled minimum
hardness of 650 BHN. |
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| Morris
6100 CT - Truly the toughest severe duty recessed impeller pump! |
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