Flowserve M-series PolyChem - Manual (Page 12)

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
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Page 12 of 60
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3 DESCRIPTION
3.1 Configurations
The PolyChem M-series chemical process pumps are
fluoropolymer lined, magnetically coupled, 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:
PB 40
– 200 / 190CL (ISO)
PJ 2 X 1 - 10 / 8.25CL (ANSI)
P = PolyChem pump line
A = Magnetic coupling (small) Group A/1
B = Magnetic coupling (medium) Group A/1
C = Magnetic coupling (large) Group A/1
J = Magnetic coupling (small) Group B/2
K = Magnetic coupling (medium) Group B/2
L = Magnetic coupling (large) Group B/2
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 (inch)
“1” = Nominal discharge port size (inch)
“10” = Nominal (max) impeller diameter (inch)
“8.25” – Actual impeller diameter (inch)
Impeller style (ISO or ANSI)
CL = closed vane impeller
Pump design variations
Long-coupled
Close-coupled
Pump groups
References to Group A and Group B relate to ISO
pumps, whilst references to Group 1 and Group 2
relate to ANSI pumps
An example of the nameplate used on the PolyChem
pump is shown in Figure 3-1. This nameplate is
mounted on either the lantern or the bearing housing.
Figure 3-1: Nameplate
3.3 Design of major parts
3.3.1
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
The impeller is closed vane.
3.3.3
Wetted bearing system
This system is comprised of silicon carbide bearings.
It is made up of a shaft, thrust journals and bushings,
as well as radial journals and bushings.
3.3.4
Power end bearings and lubrication –
Long-coupled
Ball bearings are fitted as standard and may be either
oil or grease lubricated.
3.3.5
Bearing housing – Long-coupled
Large oil bath reservoir.
3.3.6
Bearing holder
Supports the inboard radial pump bearing.
3.3.7
Magnetic coupling
Comprised of an inner and outer magnet assembly.
The outer assembly is supported by the power end
(long-coupled) or the motor (close-coupled). The
inner assembly is encapsulated and mounted on a
silicon carbide shaft.
3.3.8
Containment shell
Nonmetallic construction to avoid eddy currents
losses.
3.3.9
Lantern
Used to connect the casing to the power end on a
long-coupled pump or to the motor on a closed-
coupled pump.
Serial No.
Equipment No.
Purchase Order
Model
Size
MDP
Material
Date DD/MMM/YY
PJ 2 X 1 - 10 / 8.25CL