ROTAN INTERNAL GEAR PUMPS

ROTAN INTERNAL GEAR PUMPS
The Advanced Internal Gear Pump
DESMI Inc./ROTAN Pumps
4021 Holland Blvd
Chesapeake, VA 23323, USA
Phone: 1-800-64-DESMI
Web: www.desmiusa.com
E-mail: [email protected]
1
DESMI ROTAN, one of
the world´s leading
manufacturers of
internal gear pumps
DESMI A/S, formerly known as A/S De Smitske, was founded in 1834. Today DESMI A/S
develops, manufactures and markets pumps
and pumping systems worldwide.
The ROTAN pumps are marketed by the DESMI
Extensive inventory and assembly capability in North America
ROTAN division and are distributed by subsidiaries, sales agencies and distributors in more
than 40 countries.
The internal gear pump principle was developed in 1915 by a Danish American. In 1921,
he licensed a Danish Company to manufacture
the pumps, which have been continuously mar-
1
keted worldwide under the ROTAN name. The
unique, modular concept of ROTAN pumps is
generally recognized as the most advanced internal gear pump design available today.
DESMI INC. facility in Chesapeake, VA
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The Advanced Internal Gear Pump
2
Method of operation
ROTAN pumps offer the following additional
advantages and benefits:
‡ Pumping capability in either direction (all
models) allowing installation flexibility
‡ Modular, back pull-out (except GP) design
The
ROTAN
internal
gear
pump
has
a standard in-line, opposing connection
design. Oversized ports provide superior
self-priming capability with gentle liquid
handling as the direction of the liquid flow
is changed only slightly.
means
high
viscosity
‡ Construction is simple and rugged with
only two rotating parts and a shaft seal,
enhancing service life
‡ External axial adjustment of rotor/shaft for
In addition to reduced NPSH requirements,
this
makes inspection and maintenance easy
and
shear
sensitive materials may be readily pumped.
Lubricating and non-lubricating liquids, with
appropriate provisions, can be pumped.
wear and repositioning after maintenance
saves time and expense
‡ Large choice of configurations provide
flexibility to handle a wide range of applica-
2
tions
‡ Substantial inventories are maintained,
including stainless steel and mag drive
pumps, to meet customer schedules
‡ Competitively priced, reducing customers´
Liquid inlet
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Liquid outlet
initial and operation costs
‡ Computerized selection program available
for customers needing immediate sizing
and related application information
‡ Standard, integral relief valve mounted on
casing saves space and simplifies piping
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3
GP/CC
Direct coupled pumps in cast
iron, for clean and mildly
abrasive liquids
3
GP monoblock pumps are typically used for
handling various clean and mildly abrasive
liquids. The simple and compact construction
makes it a low cost pump, often used in
modified versions by OEM customers.
CC models are close-coupled, providing the
ultimate compact construction. GP/CC pumps
are designed for use with NEMA or IEC-flanged
motors.
Typical Applications:
Pumping of:
‡ Clean oil
‡ Glycol
‡ Vegetable oil
‡ Solvents
‡ Lube oil
‡ Waste oil
‡ Fish oil
Capacity range:
Speed:
Differential pressure:
Suction lift:
Viscosity range:
Temperature:
4
Up to 225 gpm
Up to 1750 rpm
Up to 250 psi
Up to 15” Hg vacuum while
priming
Up to 24” Hg vacuum while
pumping
Up to 7,500 cSt
Up to 300° F
HD pumps are specifically designed for difficult
HD
applications and those involving high viscosity
liquids.
Typical applications include pumping oils,
asphalts, chocolates, paints, lacquers, molas-
Heavy Duty pumps in cast iron,
for a wide range of viscous, noncorrosive liquids
ses, soaps, and other industrial viscous process
fluids.
HD pumps are known for their rugged and
simple construction.
Capacity range:
Speed:
Differential pressure:
Suction lift:
Viscosity range:
Temperature:
Up to 750 gpm
Up to 1750 rpm
Up to 250 psi
Up to 15” Hg vacuum while
priming
Up to 24” Hg vacuum while
pumping
Up to 250,000 cSt
Up to 500° F
4
Typical Applications:
Pumping of:
‡ Oil
‡ Polyol
‡ Asphalt
‡ Viscose
‡ Chocolate
‡ Supphate soap
‡ Paint
‡ Maltose
‡ Lacquer
‡ Grease
‡ Molasses
‡ Pitch
‡ Soap
‡ Base oil
‡ Other Industrial
‡ Bitumen
viscous liquids
‡ Polyester
‡ Additives
5
PD
Petrochemical Duty Pumps in
carbon steel, designed for
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applications
5
Typical Applications:
Pumping of:
PD pumps are designed for refinery and
‡ Fuel
petrochemical applications, and are of steel
‡ Oil
external construction.
‡ Gasoline
‡ Lube oil
Typical applications include pumping fuel
‡ Grease
oils, gasoline, lube oils, greases, and other
‡ Other hydrocarbon based fluids
hydrocarbon-based
‡ Additives
fluids.
PD
pumps
are
available to meet most API 676 standards.
‡ Bitumen
‡ Polystyrene
‡ Wax
Capacity range:
Speed:
Differential pressure:
Suction lift:
Viscosity range:
Temperature:
6
Up to 750 gpm
Up to 1750 rpm
Up to 250 psi
Up to 15” Hg vacuum while
priming
Up to 24” Hg vacuum while
pumping
Up to 250,000 cSt
Up to 500° F
CD pumps are designed for handling corrosive
CD
liquids, primarily in the chemical processing,
food, and pharmaceutical industries.
Typical applications include pumping organic
acids, fatty acids, alkalis, caustic soda, polymer
Chemical Duty pumps in stainless
steel, designed to handle corrosive
liquids
solutions, soap, shampoo, animal fat, vegetable
fat, chocolate, and other special fluids.
Capacity range:
Speed:
Differential pressure:
Suction lift:
Viscosity range:
Temperature:
Up to 750 gpm
Up to 1750 rpm
Up to 250 psi
Up to 15” Hg vacuum while
priming
Up to 24” Hg vacuum while
pumping
Up to 250,000 cSt
Up to 500° F
6
Typical Applications:
Pumping of:
‡ Organic acid
‡ Chocolate
‡ Fatty acid
‡ Other special fluids
‡ Alkali
‡ Resin
‡ Caustic soda
‡ Paint
‡ Polymer solutions
‡ Rosin
‡ Soap
‡ Shampoo
‡ Animal fat
7
MD
Capacity range:
Speed:
Differential pressure:
Suction lift:
Viscosity range:
Temperature:
Up to 400 gpm
Up to 1750 rpm
Up to 250 psi
Up to 15” Hg vacuum while
priming
Up to 24” Hg vacuum while
pumping
Up to 10,000 cSt
Up to 500° F
Mag Drive sealless pumps,
for ultimate protection against
leakage
7
MD pumps are designed for applications
Most important MD model
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demanding zero emissions. Previously, these
applications were typically isocyanate, solvents
and other hazardous organic liquids.
‡ Maximum
protection
against
leakage,
sealless design provides assurance against
environmental contamination
The use of MD pumps is rapidly expanding to
include many non-hazardous liquids.
‡ Advanced, patented cooling system based
on an integral pump eliminates the need
This is due to the increasing need to eliminate
for external cooling
leakage and subsequent pollution. Another
advantage of installing MD pumps is the
extremely low maintenance requirement.
‡ Dynamic axial balancing system minimizes
axial loads, reduces energy consumption,
and increases equipment MTBM
They will often provide a cost-effective solution
for installations where a conventional pump
‡ Inherent secondary containment system,
would need frequent replacement of the shaft
provided by completely enclosed magnetic
seal(s).
coupling
housing,
controls
primary containment fails
8
leakage
if
‡ Superior,
positive
thrust
control
feature
available when required to assure proper
maintains correct running clearances and
pump operation
eliminates failures common to other designs
‡ Genuine back-pullout design
‡ Wide choice of bearing materials available,
including cast iron, bronze, carbon and
‡ Pump comes standard as close-coupled,
tungsten carbide
optional with bare shaft
‡ Standard magnet material is neodymium-iron-
‡ Both internal and external canister protection
boron. Optional samarium cobalt permanent
magnets allow operating temperatures up to
500°F
‡ Reversible pumping capability, available by
changing the rotation of the motor, allows
installation flexibility
‡ Optional external heating jackets for both
front cover and magnetic coupling housing
8
Typical Applications:
Where no leakage liquid or
gaseous, is allowed:
Suction
(Discharge)
Pumping of:
‡ Isocyanate
‡ Solvents
‡ Hazardous organic liquids
‡ Printing Ink
‡ Resin
‡ Pitch
‡ Alkyd resin
‡ Soyabean oil
‡ Linseed oil
Discharge
(Suction)
‡ Monomers
‡ Polyol
‡ Corn Syrup
ROTAN MD SERIES PUMP
The most advanced, magnetically driven,
positive displacement pump available.
9
By indicating the options in the
order below, the complete pump
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1) Pump series
GP
General Purpose, mono block pump in cast iron
CC
General Purpose, close-coupled pump in cast iron
HD
Heavy Duty pump in cast iron
PD
Petrochemical Duty pump in carbon steel
MD Mag Drive pump, magnetically coupled, in cast iron,
carbon steel or stainless steel
CD
Chemical Duty
2) Pump sizes
26
DN 25-1”
33
DN 32-1¼”
41
DN 40-1½”
51
DN 50-2”
66
DN 65-2½”
81
DN 80-3”
101 DN 100-4”
126 DN 125-5”
151 DN 150-6”
152 DN 150-6”
201 DN 200-8”
9
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Idler bearing and main bearing lubricated by pump
medium
M Externally lubricated idler bearing and main bearing
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Cast iron
Hardened steel
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Carbon
Hardened steel
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AI.oxide
Cr.oxide coated steel
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Carbon
AI.oxide,
polished
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carbide
carbide
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Cast iron
Carbon steel
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Carbon
Carbon steel
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AI.oxide
Cr.oxide coated steel
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B
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carbide
Ball bearing
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carbide
Steel
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329 SS
66
329 SS
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polished
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329 SS
Cr.oxide
coated 329 SS
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coated 329 SS
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Suction/discharge connections in-line
B
Suction/discharge connections at 90° angle (optional)
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Bellows or O-ring type
22 Double mechanical seal, O-ring type
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3
4
GP/HD Cast iron
CD
316 SS
PD
Cast steel
Cast Iron
329 SS
Cast iron
Carbon Steel
329 SS
Carbon steel
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Selection of pump size
To size a pump with the adjacent chart, the following is
From the viscosity at the top of the
needed:
chart, follow the color-coded lines
·
The capacity
downwards. Next, find the capacity
·
The viscosity
at the right or left side of the chart
and follow a horizontal line until it
intersects with the viscosity line. The
point of intersection of the two lines
determines the pump size, defined
by the diagonal lines. If there is not
a precise intersection of the three
lines, select the nearest size, giving
either a slightly higher or slightly
lower capacity.
The required speed is found on the
bottom scale, vertically below the
point of intersection. The maximum
10
speed of each pump is indicated by
the dot at the end of each pump´s
line.
This speed must be reduced by up
to 50% when pumping abrasive
liquids and/or emulsions. When the
differential pressure is known, the
shaft power can be calculated by the
formula:
BHP = 0.0015 x flow (gpm) x
differential pressure (psi).
The required shaft power is increased
by up to 35% when handling higher
viscosities (above 5,000 cSt), and
conversely reduced by up to 35%
when handling thin liquids. (below
500 cSt).
11
Denmark+HDG2I¿FH
DESMI A/S
Tagholm 1
DK-9400 Nørresundby
Tlf. +45 96 32 81 11
Fax: +45 98 17 54 99
Web: www.desmi.com
E-mail: [email protected]
Holland:
DESMI K&R Pompen B.V.
Tlf. +31 30 261 00 24
Fax: +31 30 262 33 14
Web: www.desmi.com/krpompen
E-mail: [email protected]
China
DESMI Pumping Technology (Suzhou) Co., Ltd.
Tlf.: +86 512 6274 0400
Fax: +86 512 6274 0418
Web: www.desmi.com
E-mail: [email protected]
DESMI Danmark A/S
Tlf. +45 72 44 02 50
Fax: +45 98 17 54 99
Web: www.desmi.dk /
www.pumpeservice.dk
E-mail: [email protected]
DESMI Contracting
Tlf. +45 96 32 81 11
Fax: +45 98 17 54 99
Web: www.desmi.com
E-mail: [email protected]
RO-CLEAN DESMI
Tlf. +45 65 91 02 01
Fax: +45 65 90 88 77
Web: www.ro-cleandesmi.com
E-mail: [email protected]
Korea
DESMI Korea
Tlf.: +82 31 931 5701
Fax: +82 31 931 5702
Web: www.desmi.com
E-mail: [email protected]
England
DESMI Ltd.
Tlf.: +44 1782 566900
Fax: +44 1782 563666
Web: www.desmi.com/ltd.
E-mail: [email protected]
Norway
DESMI Norge AS
Tlf. +47 38 12 21 80
Fax: +47 38 12 21 81
Web: www.desmi.com/norge
E-mail: [email protected]
DESMI FHS Ltd.
Tlf.: +44 1782 566900
Fax: +44 1782 563666
Web: www.desmi.com/ltd.
E-mail: [email protected]
Germany
DESMI GmbH Rotan Pumpengesellschaft
Tlf. +49 407 519847
Fax: +49 407 522040
Web: www.desmi.com/gmbh
E-mail: [email protected]
RO-CLEAN DESMI Ltd.
Tlf.: +44 2380 829751
Fax: +44 2380 339190
Web: www.ro-cleandesmi.com
E-mail: [email protected]
Ecuador
RO-CLEAN DESMI LATINOAMERICA S.A.
Tel.: +593 2 326 1939
Fax: +593-2 326 4844
Web: www.ro-cleandesmi.com
E-mail: [email protected]
The Advanced Internal Gear Pump
12
Hong Kong
DESMI PTS Hong Kong Limited
Tlf.: +86 512 6274 0400
Fax: +86 512 6274 0418
Web: www.desmi.com
E-mail: [email protected]
USA (North America)
DESMI Inc.
Tlf. +1 757 857 7041
Fax: +1 757 857 6989
Web: www.desmiusa.com
E-mail: [email protected]
Applied Fabric Technologies, Inc.
Tel.: +1 716 662 0632
Fax: +1 716 662 0636
Web: www.afti.com
E-mail: [email protected]
DESMI Inc./ROTAN Pumps
4021 Holland Blvd
Chesapeake, VA 23323, USA
Phone: 1-800-64-DESMI
Web: www.desmiusa.com
E-mail: [email protected]