Allis-Chalmers
CSO Pump Range
Tuff C Series
ANSI B73.1 Chemical Pump
The old Allis
Chalmers CSO ANSI B73.1 chemical and process pump range has been
around for many years and, as such, Tuff Pumps continues to manufacture
“equivalent & interchangeable” parts to suit the
old design ~ for continuity and reliability of spare parts (if nothing
else)
Having
investigated the market for ANSI B73.1 chemical pumps in great detail,
it was found that the old CSO style pump design was rather outdated
and in need of an upgrade and facelift. With this in mind, and in
noting that the “equivalent” CSO parts are still available,
Tuff Pumps has created its ALL NEW redesigned and re-engineered
“C
Series” pump; complete with upgraded modular bearing frame
and housing, and the ability to handle more severe, higher temperature,
and greater power requirement applications.
As with the
P
Series (equivalent to the PWO),
the C
Series (equivalent to the CSO) is manufactured and supplied
in a wide variety of materials; from standard all Ductile Iron (DI),
through DI/316SS fitted, to all 316SS, CD4Mcu or 20SS (Duplex Stainless
Steels) to the more exotic Hastelloys. All bearing frames are separate
from the bearing housings (as a modular construction) and can be
supplied in Ductile Iron or 316SS (where gland leakage corrosion
or similar is a potential problem). The bearing housings and end
caps are normally in Ductile Iron but can again be manufactured
in other materials (to suit environment and application).
Shafts are
normally supplied in SAE 1045 Steel, with options of 316SS or Duplex
Stainless Steel being available throughout the range.
In having created
an all new design for the C
Series, it should be noted that the hydraulics of the NEW design
are equivalent to those of the OLD design; with the main design
changes being limited to the upgrade of the power/drive end, and
aesthetic facelift of the unit in general.
Pump
Sizes:
Group 1 Bearing
Frame:
C1.5/1-6 = 1.5x1x6 CSO
C3/1.5-6 = 3x1.5x6 CSO
C3/2-6 = 3x2x6 CSO
C1.5/1-8 = 1.5x1x8 CSO
Group 2 Bearing Frame:
C3/1.5-8.5 = 3x1.5x8.5 CSO
C3/2-8.5 = 3x2x8.5 CSO
C4/3-8.5 = 4x3x8.5 CSO
C6/4-8.5 = 6x4x8.5 CSO
C2/1-10 = 2x1x10 CSO
C3/1.5-11 = 3x1.5x11 CSO
C3/2-11 = 3x2x11 CSO
C4/3-11 = 4x3x11 CSO
C6/4-11 = 6x4x11 CSO
C3/1.5-13 = 3x1.5x13 CSO
C3/2-13 = 3x2x13 CSO
C4/3-13 = 4x3x13 CSO
C6/4-13 = 6x4x13 CSO
Group 3 Bearing Frame:
C8/6-13 = 8x6x13 CSO
C10/8-13 = 10x8x13 CSO
C8/6-15 = 8x6x15 CSO
C10/8-15 = 10x8x15 CSO
For those that
do not know, the first number in the above pump designation refers
to the suction nozzle nominal bore, the second to the discharge
nominal bore, and the third to the full impeller diameter.
As with the
original range, the Tuff Pumps C Series equivalents can be supplied
with standard gland packed stuffing boxes, mechanical seals, or
dynamic/expeller type sealing arrangements.
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Please
refer to Tuff Pumps and its C
Series range for further information and PDF literature downloads
Typical
C6/4-13
equivalent to
6x4x13 redesigned CSO
pump showing NEW bearing frame
design at its best
Typical
C Series Impellers
balance
holes to reduce pressure on stuffing box/gland area
Typical C Series Pump
Front View
with impeller fitted
showing balance holes for reduce stuffing box pressure
Please
refer to Tuff Pumps and its C
Series range for further information and PDF literature downloads
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