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Mechanically Sealed
Chemial Pump
Chemical transfer pump
FRP casing, up to 1500 m³/h
The ANSI/ASME B73.1 standardized centrifugal CFG pump series is designed to handle challenging applications. The components of the pumps in this easy-to-use series are produced in high thickness to ensure maximum reliability.
Application
Sulfuric Acid (H2SO4), Hydrochloric Acid (HCl), Sodium Hypochlorite (NaOCl), Nitric Acid (HNO3), Caustic Soda (NaOH), Phosphoric Acid (H3PO4), Ferric Chloride (ZnCl2), etc.
Construction
The parts in contact with the liquid are made of thermoplastic block, the body (Fiberglass reinforced vinyl ester resin) and the gaskets are made of (EPDM, FPM, FFKM) material.
Performance Data
Flow
m³/h
1500
Pressure
mWc
5-120
Motor
kW
1,5 - 200
Speed
rpm
950 - 1150 - 1450 - 1750 - 2900 - 3500
Operating Temperature
°C
-20 / +110
Application
Long Couple
Impeller
Semi-open
Construction Material
Chemical transfer pumps are manufactured from materials with high chemical and mechanical resistance such as PP, PE, PVDF, FRP.
PP
PE-UHMW
0/+90 °C
-30/+90 °C
Polypropylene (PP) is a thermoplastic polymer used in a wide variety of applications. It has high mechanical and temperature resistance.
Ultra-high molecular weight polyethylene (UHMWPE, UHMW).
It provides very high chemical and mechanical resistance.
PVDF
-20/+120 °C
-20/+120 °C
FRP
Polyvinylidene difluoride (PVDF) is a thermoplastic fluoropolymer.
PVDF is a specialty plastic used in applications requiring resistance to solvents, acids and hydrocarbons.
Fiber reinforced plastic (FRP; Fiber reinforced plastic) is a composite material made from a polymer matrix reinforced with fibres.
It is used in processes requiring mechanical and chemical resistance.
Processes
-
strong acids
-
ionic, salt solutions
-
halogenated compounds
-
hydrocarbons
-
aromatic solvents
-
aliphatic solvents
-
oxidants
-
bases
Applications
-
chemical processing
-
electricity, batteries and electronic components
-
construction and architecture
-
health and pharmacy
-
biomedical research
-
nuclear
-
petrochemical, oil and gas
-
food, beverage processing
-
water, wastewater management
Construction
01
The pump body made of high-thickness FRP provides optimum mechanical strength and chemical resistance without the need for metal armouring.
02
Semi-open centrifugal impeller.
03
The shaft sleeve is made of FRP or PE-UHMW and is produced as a one piece component, completely covering the part of the steel shaft in contact with the process fluid.
04
The shaft rotates integrally with the wheel but is independent of it.
05
Standardized mechanical seal selected based on plant and process requirements.
06
Single row radial bearing.
07
S235JR-EN1025 Discharge flange made of carbon steel, consisting of two parts.
08
Shaft made of 42CrMo4 Carbon steel (special alloy on request), designed to support torsional and radial forces; Protected by a precisely machined shaft sleeve made of PP, PVDF or PE-UHMW.
09
The bearing housing is made of corrosion-resistant G25 cast iron with epoxy coating.
Performance Curves
1450 rpm - 50 hz
1750 rpm - 60 hz
2900 rpm - 50 hz
3500 rpm - 60 hz
Mechanical Seal
The elastomeric bellows seal is a mechanical seal designed for moderately corrosive, clean and not extremely hot liquids. It consists of static and rotating rings made of SiC; The spring and armor are made of SS316 and are not in contact with the process fluid. Elastomeric bellows are made of EPDM or FPM. This seal is available in external (B6E – B6EC), internal (B6I – B6IC – B6IH) and double flush (B6EDF – B6EDFC) types.
PTFE bellows seal is a mechanical seal designed for highly corrosive fluids and high temperatures. It has static and rotating rings in three different combinations (SiC-SiC, SiC-Al2O3, Al2O3-PTFE-C); It has PTFE bellows, springs and SS316 armor that does not come into contact with the pumped liquid. This seal is available in external (JRS – JRS1 – JRA) and double flush (JR2S – JR2S1 – JT2P – JR2A) types.
The elastomeric O-Ring seal is a mechanical seal suitable for moderately corrosive, clean and not extremely hot liquids. It consists of static and rotating rings in two different combinations (SiC-SiC, Carbon-graphite-SiC); bow and armor are Hastelloy C276. The O-ring is made of EPDM or FPM. This gasket is available in internal (UMG – UMS) and double flush (UM2G – UM2S) types.
Special Solutions
Screwless impeller system
Shaft sleeve and impeller
system
Shaft adjustment system
Base adjustment system
(D) impeller lock system
(C) nut
(B) washer
(A) Prevents the wheel from coming off the shaft if the wheel rotates against the direction of rotation during start-up
(C) shaft sleeve
(B) O-ring
(A) In case the shaft is damaged, it allows it to be replaced without dismantling the impeller to save on spare parts costs.
CFG pumps provide an axial shaft adjustment system to restore previous pump performance in the event of partial wear of the impeller blades by allowing the impeller to approach the casing and without replacing internal parts. The system consists of a threaded ring nut (A), fixing screws (B) and set screws (C).”
The CFG pump base provides a system for pump-motor regulation without the use of additional thicknesses. The system consists of a support plate (A), adjusting nut (B) and two lock nuts (C).
