Flowserve PolyChem GRP - Manual (Page 12)

USER INSTRUCTIONS POLYCHEM GRP ENGLISH 71569132 12-04A
Page 12 of 52
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Figure 3-1
3.3 Design of major parts
3.3.1 Pump casing
The pump casing is designed with a horizontal
centerline suction inlet and a vertical centerline top
discharge which makes it self venting.
Removal of the casing is not required when
performing maintenance of the rotating element. The
pump is designed with a gasket perpendicular to the
shaft allowing the rotating element to be easily
removed (back pull out).
3.3.2 Impeller
An open impeller design is the only offering.
3.3.3 Shaft/sleeve
The pump shafts are sleeved, supported on rolling
element bearings, with both threaded and polygon
drive ends for the impeller and a 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
Options include a large reservoir for oil bath
lubrication or the use of zerk fittings for regreasable
bearings. A micrometer shaft adjustment allows
external setting of the impeller gap.
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. Gland
packing may be fitted as an option.
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.
3.4 Performance and operating limits
This product has been selected to meet the
specification of your purchase order. (See section 1.5.)
Typical materials used in the PolyChem GRP include:
Casing, impeller, rear cover, and glands. Glass
reinforced plastic (GRP) composed of chopped
fiberglass strands in a Derakane 470™ vinyl ester
resin. (Durcon 730, a glass reinforced thermo-setting
epoxy resin, is used for the 1K3x2GS-7.)
Shaft sleeves. Ryton

plastic (Polyphenylene
sulfide) or high alloy steels are available.
Shafting. 4140 carbon steel as standard with 17-4
PH stainless steel as an option. (Superchlor 77 is the
standard shaft material for the 1K3x2GS-7 pump.)
3.4.1 Pressure-temperature ratings
Figure 3-2 Bar (psi)
Size
-46 °C
(-50 °F)
66 °C
(150 °F)
121 °C
(250 °F)
1J1.5x1G-6 13.79 (200) 13.79 (200) 10.34 (150)
1J3x1.5G-6 13.79 (200) 13.79 (200) 10.34 (150)
1J3x2G-6 13.79 (200) 13.79 (200) 10.34 (150)
1J1.5x1G-8 13.79 (200) 13.79 (200) 10.34 (150)
2K3x1.5G-8 13.79 (200) 13.79 (200) 10.34 (150)
2K3x2G-8 13.79 (200) 13.79 (200) 10.34 (150)
2K4x3G-8 13.79 (200) 13.79 (200) 10.34 (150)
2K2x1G-10 17.24 (250) 17.24 (250) 13.79 (200)
2K3x1.5G-10 6.89 (100) 6.89 (100) 5.17 (75)
2K4x3G-10 6.89 (100) 6.89 (100) 5.17 (75)
2K6x4G-10 6.89 (100) 6.89 (100) 5.17 (75)
2K3x1.5G-13 8.62 (125) 8.62 (125) 6.89 (100)
2K4x3G-13 8.62 (125) 8.62 (125) 6.89 (100)
3J8x6G-13 10.34 (150) 10.34 (150) 8.62 (125)
3J12x10G-15 6.89 (100) 6.89 (100) 5.17 (75)
4J12x10G-15B 6.89 (100) 6.89 (100) 5.17 (75)
Size
-29 °C
(-20 °F)
66 °C
(150 °F)
107 °C
(225 °F)
1K3x2GS-7 9.31 (135) 9.31 (135) 9.31 (135)
2K4X3G-13/12.5 Serial No.
Equipment No.
Purchase Order
Model
Size
MDP
Material
Date DD/MMM/YY