Flowserve S-series PolyChem - Manual (Page 12)

USER INSTRUCTIONS POLYCHEM S-SERIES ENGLISH 71569207 11-08
Page 12 of 52
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3 DESCRIPTION
3.1 Configurations
PolyChem S-series chemical process pumps are
horizontal, end suction, single stage, centrifugal
pumps. The ISO version of this pump conforms
dimensionally to ISO 2858/5199 while the ANSI
model agrees dimensionally with ASME B73.1. Both
have centerline discharge.
3.2 Nomenclature
The pump size will be engraved on the nameplate
typically as below:
PS 40 – 200 / 190CL (ISO)
PS 2 x 1 - 10 / 8.25CL
(ANSI)
P = PolyChem pump line
S = Sealed
Power end:
Mark 3A – Standard
ANSI 3A – Optional (lifetime guarantee)
ISO pump:
“40” = Nominal discharge port size (mm)
“200” = Nominal (max.) impeller diameter (mm)
“190” =Actual impeller diameter (mm)
ANSI pump:
“2” = Nominal suction port size (in.)
“1” = Nominal discharge port size (in.)
“10” = Nominal (max) impeller diameter (in.)
“8.25” = Actual impeller diameter (in.)
Impeller style (ISO or ANSI):
CL = closed vane impeller
OP = Open impeller
Pump design variation (ANSI only):
HD = Heavy duty shaft which is available on all Group 2
pump models. The shaft increases from
47.63 mm (1.875 in.) to 53.98 mm (2.125 in.).
An example of the nameplate used on the PolyChem
pump is shown in Figure 3-1. This nameplate is
always mounted on the bearing housing.
Figure 3-1: Nameplate mounted to housing
3.3 Design of major parts
3.3.1 Pump casing
Removal of the casing is not required when
performing maintenance of the rotating element. The
rotating element is easily removed (back pull out).
3.3.2 Impeller
Depending on the pump size, the impeller is either
closed vane or open.
3.3.3 Shaft/sleeve
Solid and sleeved shafts are available, supported on
bearings, threaded impeller end and keyed drive end.
3.3.4 Pump bearings and lubrication
Ball bearings are fitted as standard and may be either
oil or grease lubricated.
3.3.5 Bearing housing
Large oil bath reservoir.
3.3.6 Seal chamber (cover plate)
The seal chamber has a spigot (rabbet) fit between
the pump casing and bearing housing (adapter) for
optimum concentricity. The design enables a number
of sealing options to be fitted.
3.3.7 Shaft seal
The mechanical seal(s), attached to the pump shaft,
seals the pumped liquid from the environment.
3.3.8 Driver
The driver is normally an electric motor. Different drive
configurations may be fitted such as internal combustion
engines, turbines, hydraulic motors etc driving via
couplings, belts, gearboxes, drive shafts etc.
3.3.9 Accessories
Accessories may be fitted when specified by the
customer.
Serial No.
Equipment No.
Purchase Order
Model
Size
MDP
Material
Date DD/MMM/YY
PS 2 X 1 - 10 / 8.25CL