Submersible Motor Pump

Amarex KRT
60 Hz

Type Series Booklet

Legal information/Copyright
Type Series Booklet Amarex KRT

All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to
a third party without the manufacturer's express written consent.

Subject to technical modification without prior notice.

© KSB Aktiengesellschaft, Frankenthal 09.12.2015

 Contents

Contents

Waste Water ...................................................................................................................................................... 4

Submersible Motor Pump ............................................................................................................................................... 4
Amarex KRT ............................................................................................................................................................... 4
Main applications ................................................................................................................................................ 4
Fluids handled ...................................................................................................................................................... 4
Operating data .................................................................................................................................................... 4
Designation .......................................................................................................................................................... 4
Design details ....................................................................................................................................................... 5
Materials .............................................................................................................................................................. 6
Product benefits .................................................................................................................................................. 7
FluidFuture energy-efficiency concept by KSB .................................................................................................. 7
Acceptance tests / guarantees ............................................................................................................................ 7
Selection information .......................................................................................................................................... 7
Overview of product features / selection tables ................................................................................................ 8
Table of fluids handled ................................................................................................................................. 8
Overview of product features ..................................................................................................................... 10
Shaft seal ...................................................................................................................................................... 16
Technical data .................................................................................................................................................... 17
Mass moments of inertia as a function of motor size ............................................................................... 22
Selection charts .................................................................................................................................................. 25
Amarex KRT 40-.../80-.../100-..., n = 3500/1750/1160 rpm, K impeller ....................................................... 25
Amarex KRT 150-.../151-.../200-..., n = 1750/1160/875 rpm, K impeller .................................................... 25
Amarex KRT 250-.../300-..., n = 1750/1160/875 rpm, K impeller ............................................................... 26
Amarex KRT 350-.../400-.../500-.../600-.../700-.../900-..., n = 1160/875/700/585 rpm, K impeller ............. 26
Amarex KRT, n = 1750/1160/875 rpm, D impeller ...................................................................................... 27
Amarex KRT, n = 1750/1160 rpm, E impeller .............................................................................................. 27
Amarex KRT, n = 3500/1750/1160 rpm, F impeller ..................................................................................... 28
Amarex KRT, n = 1750 rpm, F-max impeller ............................................................................................... 28
Amarex KRT, n = 3500 rpm, S impeller ....................................................................................................... 29
Amarex KRT, n = 3500 rpm, S-max impeller ............................................................................................... 29
Installation types ............................................................................................................................................... 30
General assembly drawings with list of components ...................................................................................... 31
Amarex KRT, 2.0 hp to 10.0 hp ................................................................................................................... 31
Amarex KRT, 5.5 hp to 40.0 hp ................................................................................................................... 32
Amarex KRT, 36.0 hp to 80.0 hp ................................................................................................................. 33
Amarex KRT, 6.5 hp to 50.0 hp ................................................................................................................... 34
Amarex KRT, 47.0 hp to 640.0 hp, without cooling jacket ........................................................................ 35
Amarex KRT, 47.0 hp to 640.0 hp, with cooling jacket ............................................................................. 36

3
 Waste Water
Submersible Motor Pump

Waste Water Characteristic Value

Motor rating P2 [hp] ≤ 1140
P2 [kW] ≤ 850
Submersible Motor Pump

Designation
Amarex KRT Example: Amarex KRT K 150-401/80 4 UN G-S IE3
Designation key
Code Description
Amarex Type series
KRT
K Impeller type (⇨ Page 5)
D Open, diagonal single-channel
impeller
E Closed single-channel impeller
F/F-max Free-flow impeller
K Closed multi-channel impeller
S/S-max Impeller with cutter
150 Nominal discharge nozzle diameter [mm]
401 Maximum nominal impeller diameter [mm]
80 Motor size
4 Number of poles
2, 4, 6, 8, 10, 12
UN Motor version
U/UN/UE Not explosion-proof, for fluid
temperatures of up to 104 °F [40 °C]
W/WN/WE Not explosion-proof, for fluid
temperatures of up to 140 °F [60 °C]
X/XN/XE Explosion-proof, for fluid
Main applications temperatures of up to 104 °F [40 °C]
▪ Waste water management Z/ZN/ZE Explosion-proof, for fluid
▪ Service water supply systems temperatures of up to 140 °F [60 °C]
G Material variant
▪ Disposal G Standard design, gray cast iron
▪ Sewage treatment plants G1 Like G, impeller made of duplex
▪ Sludge disposal stainless steel
G2 Like G, impeller made of white cast
iron
Fluids handled GH Like G, impeller and intermediate
casing made of white cast iron
▪ Sewage containing feces
H Hydraulic components made of white
▪ Activated sludge cast iron
▪ Digested sludge C1 Wetted components made of duplex
stainless steel, mechanical seal with
▪ Raw sludge
elastomer bellows, screws made of
▪ Fluids containing gas A4/A 276 type 316 Ti
▪ Industrial waste water C2 Wetted components made of duplex
stainless steel, mechanical seal with
covered spring, screws made of
Operating data 1.4462/A 182 F51
S Type of installation (⇨ Page 30)
Operating properties
S Stationary wet installation with guide
Characteristic Value cable or guide rail installation
Flow rate Q [US.gpm] ≤ 45000 (without cooling jacket)
Q [l/s] ≤ 2800 D Stationary dry installation, vertical
Head H [ft] ≤ 330 P Transportable model in wet
H [m] ≤ 100 installation
Fluid temperature T [°F] ≤ 140
T [°C] ≤ 60

4 Amarex KRT
 Waste Water
Submersible Motor Pump

Code Description ▪ Mixed water

K Stationary wet installation with guide ▪ Raw waste water
cable or guide rail installation (with ▪ Raw sludge
cooling jacket)
H Stationary dry installation, horizontal ▪ Recirculated sludge
IE3 Motor efficiency classification K impeller:
1) No efficiency classification
IE2, IE3 Closed multi- For use with the following
Efficiency classification2)
channel impeller fluids:
(impeller type K) Contaminated, solids-laden,
non-gaseous fluids without
Design details
stringy material
Design
K impellers are suitable for handling the following fluids:
▪ Fully floodable submersible motor pump
▪ Activated sludge
▪ Not self-priming
▪ Landfill waste water
▪ Close-coupled design
▪ Industrial waste water
Drive
▪ Industrial effluent
▪ Three-phase asynchronous squirrel-cage motor
▪ Mechanically treated waste water
▪ Version with explosion protection to NEC 500: Explosion-
proof for Class I, Division 1, Groups C and D, T3, hazardous ▪ Pre-screened waste water
(classified) locations. ▪ Stormwater
Shaft seal S-/S-max impeller:
▪ Two bi-directional mechanical seals in tandem
arrangement, with liquid reservoir Impeller with For use with the following
cutter fluids:
▪ Pumps with reinforced bearings: with leakage chamber
(impeller type S/S- Fluids containing coarse
Impeller type max) substances and/or long fibers
▪ Various, application-oriented impeller types S/S-max impellers are suitable for handling the following
D impeller: fluids:
▪ Domestic waste water
Open, diagonal For use with the following
single-vane fluids: ▪ Waste water
impeller Fluids containing solid ▪ Sewage containing feces
(D impeller) substances and long fibers
Bearings
E impeller: Standard bearings:
▪ Grease-packed bearings sealed for life
Closed single- For use with the following
▪ Maintenance-free
channel impeller fluids:
(impeller type E) Fluids containing solid Reinforced bearings:
substances and stringy Drive end:
material
▪ Grease-packed bearings sealed for life
F impeller/F-max impeller:
▪ Maintenance-free
D, E and F/Fmax impellers are suitable for handling the
Pump end:
following fluids:
▪ Grease-packed bearings sealed for life
▪ Activated sludge
▪ Can be re-lubricated
▪ Digested sludge
▪ Heating sludge

1) Blank
2) IEC 60034-30 standard not binding for submersible motor pumps. Efficiencies calculated/determined according to the
measurement method specified in IEC 60034-2. The marking is used for submersible motors that achieve efficiency levels
similar to those of standardized motors acc. to the IEC 60034-30 standard.

Amarex KRT 5
 Waste Water
Submersible Motor Pump

Materials
Overview of available materials
Part Description Material variant
No. G G1 G2 GH H C1 C2
Pump set
101 Pump casing EN-GJL-250 EN-GJN-HB555 1.4517
135 Wear plate3) EN-GJL-250 -
230 Impeller4) EN-GJL-250 1.4517 EN-GJN-HB555 1.4517
113/16 Intermediate housing/ EN-GJL-250 EN-GJN-HB555 1.4517
3 discharge cover
433.01 Mechanical seal Carbon/SiC
(drive end)
433.02 Mechanical seal SiC/SiC
(pump end)
210 Shaft 1.4021/C45+N (⇨ Page 10) 1.4021/1.4462/C45+N
(⇨ Page 10)
330 Bearing bracket EN-GJL-250 1.4517
410 Elastomer seals Nitrile butadiene rubber NBR Viton (FKM)
502 Casing wear ring5) EN-GJL-250 VG 434
66-2 Cooling jacket 1.4571/1.0038 -
811 Motor housing EN-GJL-250/1.0038 1.4517
824 Power cable (⇨ Page 14)
900 Screws/bolts A46) 1.4462
Installation parts
72-1 Flanged elbow EN-GJL-250 EN-GJN-HB555 1.4517
732 Claw EN-GJL-250 or EN-GJS-400-15/EN-GJS-500-7 1.4517
894 Bracket 1.4571 to DN 200; 1.0038 + Z from size 200-500 1.4571
572 Guide cable suspension 1.4571 to DN 200; EN-GJL-250 from size 200-500 1.4571
bracket
59-24 Guide cable 1.4401 1.4401/
TEFZEL
892 Foot plate / feet 1.0038 + Z 1.4571 1.4517/
1.4462
885 Lifting chain/rope Lifting chain: 1.4404 Lifting rope: polypropylene
Lifting rope: polyamide/polypropylene

Comparison of materials Duplex stainless steel (1.4517 or technically equivalent

material)
EN ASTM
EN-GJL-250 A 48 Class 35 B Cast steel is resistant to cavitation, has excellent strength
EN-GJS-400-15 A 536 Class 60-40-18 values and is used for high circumferential speeds. An excellent
resistance to pitting corrosion makes ferritic-austenitic stainless
EN-GJN-HB555 A 532 Class II Type B (15 % Cr-Mo)
steel a popular choice for pumping acidic waste water
1.4517 A 890 CD4MCuN containing large amounts of chlorine, as well as seawater and
1.4021 A 276 Type 410 T brackish water. Thanks to its good chemical resistance, e.g. also
1.4401 A 276 Type 316 L against waste water containing phosphorous and sulphuric
1.4462 A 182 F51 acid, this material is used in a wide range of applications in the
VG 434 - chemical industry and process engineering. Pumps made of
1.4571 A 276 Type 316 Ti duplex stainless steel have a very long service life, even when
C45+N A 576 Gr. 1045 handling brines, chemical waste water (pH value 1 - 12), gray
water and landfill leachate.
NBR NBR
FKM FKM Wear-resistant white cast iron ((EN-GJN-HB555 (XCR14) or
technically equivalent material)

Description of materials This is a wear-resistant white cast iron for highly abrasive fluids
containing sand, ash or iron ore sinter. It has a Rockwell
Gray cast iron EN-GJL-250 (lamellar graphite cast iron): hardness of 61.5 to 68, which is higher than that of hardened
Lamellar graphite cast iron to DIN EN 1561 is the most widely chrome steel. The chromium-molybdenum alloy cast iron
used cast material for handling municipal sewage, waste water features a notably higher wear resistance than EN-GJL-250 gray
and sludges as well as stormwater and surface water. It is cast iron and other cast materials.
suitable for neutral fluids which are only slightly aggressive
and cause little wear. The pH value should be ≥ 6.5, the sand
content ≤ 0.5 g/l.

3) For D impeller
4) D impeller: EN-GJL-250, with hardened edges
5) For E and K impellers
6) Equivalent to 1.4571

6 Amarex KRT
 Waste Water
Submersible Motor Pump

Product benefits Impeller types

▪ Absolutely water-tight resin-sealed cable entries prevent ▪ S, F, D and E impellers can only be supplied with the
any water from entering the motor – even in the event of documented impeller diameters. In the purchase order,
a damaged connection cable. the impeller diameter must always be added to the
designation of the pump set.
▪ Reliable operation ensured by moisture sensors signaling
any ingress of moisture into the motor ▪ K impellers are trimmed to match the duty point. Purchase
orders must always contain the H/Q data or impeller
▪ Reliable operation ensured by sensors monitoring the
diameter. If the hydraulic selection program is used, the
motor temperature and preventing overheating
impeller diameter is automatically computed based on the
▪ Non-clogging low-maintenance design with large free H/Q data and added to the designation of the pump set.
passages reduces clogging risk and, consequently,
maintenance work.
Pump input power
▪ Optimum hydraulic and energy efficiency by high-
efficiency motors and variable hydraulic systems ▪ The pump input power must be matched to the density of
the fluid handled:
For material variants C1 and C2: P2req. = ρfluid [kg/dm3] x P2docu
▪ Long service life due to corrosion-resistant hydraulic ▪ The operating point with the largest pump input power is
components made of stainless steel decisive for the operating range of the motor. To
compensate the unavoidable tolerances of the
characteristic curves of system and pump we recommend
FluidFuture energy-efficiency concept by KSB selecting a motor size which provides sufficient power
reserves.
Recommended minimum reserves7)
Required pump input Motor power reserve
power
www.ksb.com/fluidfuture
[hp] [kW] Mains operation With frequency
inverter
Acceptance tests / guarantees ≤ 40 ≤ 30 10 % 15 %
> 40 > 30 5% 10 %
Functional test
▪ If larger power reserves are stipulated by local regulations
▪ Every pump undergoes functional testing to KSB standard or are required to compensate for uncertain factors in
ZN 56535. system calculations, these larger reserves must be
▪ Operating data is guaranteed to DIN EN ISO 9906/2/2B or provided!
Hydraulic Institute Level A/B. ▪ For installation types K and D (with cooling jacket) a
power reserve of 2 hp [1.5 kW] must always be added for
Acceptance tests the cooling circuit.

▪ Acceptance tests to ISO/DIN or a comparable standard are ▪ The motors are designed for frequency inverter operation.
available against a surcharge. ▪ The service factor for all motors equals 1.15.
▪ Acceptance tests to Hydraulic Institute available on
request. General information for operating submersible motor
pumps in waste water
Quality assurance
In the case of waste water, too low a flow velocity in the
▪ Quality is assured by means of an audited and certified discharge line will lead to clogging and increased wear. A
quality assurance system to DIN EN ISO 9001. minimum flow velocity in the vertical riser of 6.56 ft/s [2 m/s]
must be observed.

Selection information In the case of waste water, too low a circumferential

▪ The indicated heads and performance data apply to speed of the impeller will lead to clogging of the hydraulic
material variant G in combination with handled fluids system (frequency inverter operation). A minimum
with a density ρ = 1 kg/dm3 and a kinematic viscosity circumferential speed (measured at the outside diameter of
ν ≦ 20 mm2/s. the impeller) of 49.21 ft/s [15 m/s] must be observed.

▪ For hydraulic acceptance tests of pumps made of different

materials the documented efficiencies must be reduced by
2 percent.

7) If larger reserves are stipulated by local regulations or are required to compensate for uncertain factors in system
calculations, these larger reserves must be provided.

Amarex KRT 7
 Overview of product features / selection tables
8

Table of fluids handled

Amarex KRT

The table below for your guidance is based on KSB's long-standing experience. The data
are standard values and are not to be considered as generally binding recommendations.
More detailed advice is available from our specialist department in Halle. Make use of our
laboratory's expertise when selecting materials.

Selection aid for materials and impeller type per fluid

Fluid handled8) Recommended material Recommended Comments, further recommendations
impeller type9)
Gray water Gray cast iron K, D, E, F Free passage > any solids contained, possibly pre-screened
River water Gray cast iron K, D, E, F Free passage > any solids contained, possibly pre-screened
Stormwater Gray cast iron K, D, E, F Free passage > any solids contained, possibly pre-screened
Waste water
▪ Untreated municipal waste water Gray cast iron F, S, D, E, K ATV10) recommends a free passage of 4" [100 mm], min. free passage of 3" [76 mm]
▪ Waste water containing air or gas Gray cast iron F Up to 8 %, contact KSB for fluids with high outgassing rates
Sludge
▪ Raw sludge Gray cast iron F, D, E, K Pumpable up to a dry substance content of: 13 % (D), 8 % (F), 6 % (E), 5 % (K)
▪ Digested sludge Gray cast iron F, D, E, K Pumpable up to a dry substance content of: 13 % (D), 8 % (F), 6 % (E), 5 % (K)
▪ Activated sludge Gray cast iron D, K Pumpable up to a dry substance content of: 13 % (D), 5 % (K)
Industrial waste water containing ...
▪ Paint suspensions Gray cast iron K Solvent-free, observe the operator's instructions.
▪ Lacquer/paint/varnish suspensions Gray cast iron F, E Solvent-free, contact KSB to handle silicone-free fluids
▪ Fibers/pulp Gray cast iron F, S, D -
▪ Chips/swarf Gray cast iron K, F Material variants G2 or GH, special mechanical seal, solids content < 5 g/l
▪ Abrasive substances11) Gray cast iron K, F Material variants G2 or GH, special mechanical seal, solids content < 5 g/l
Mildly acidic industrial waste water Gray cast iron K, F pH value ≥ 6.5, material variant C1 and FPM (Viton) O-rings
Neutral non-corrosive waste water
▪ Ammonium hydroxide Gray cast iron K -
▪ Ammonium hydroxide 5 % NH4OH Gray cast iron K -
▪ Urea 25 % (NH2)2-CO Gray cast iron K -
▪ Potassium hydroxide 10 % KOH Gray cast iron K -

Submersible Motor Pump

▪ Calcium hydroxide 5 % Ca(OH)2 Gray cast iron K -
▪ Sodium hydroxide 5 % NaOH Gray cast iron K -
▪ Sodium carbonate 30 % Na2CO3 Gray cast iron K -

Waste Water
8) For any fluids which are not listed in this table contact KSB.
9) The first impeller type listed should be given preference.
10) ATV = German regulatory body for waste water management
11) Severe hydroabrasive wear occurs if solids contents of 0.5 g/l or higher are combined with circumferential speeds exceeding 20 m/s or low flow conditions to the left of the duty
point.
 Fluid handled8) Recommended material Recommended Comments, further recommendations
impeller type9)
Neutral, non-corrosive waste water containing ...
▪ Aliphatic hydrocarbons, e.g. oils, petrol, Gray cast iron K -
butane, methane
▪ Aromatic hydrocarbons, e.g. benzene, Gray cast iron K FPM (Viton) O-rings12)
styrene
▪ Chlorinated hydrocarbons, e.g. Gray cast iron K FPM (Viton) O-rings12)
tetrachloroethylene, ethylene chloride,
chloroform, methylene chloride
Highly abrasive industrial waste water causing wear (chemically neutral)13)
▪ Water containing iron ore sinter Wear-resistant white K Sinter content < 5 g/l: material variant GH
cast iron
Sinter content > 5 g/l: material variant H
▪ Lime milk containing quartz and pigment Wear-resistant white K Lime milk content < 15 %: material variant GH
suspensions cast iron
Lime milk content > 15 %: material variant H
▪ Wash water containing solids Wear-resistant white K, F Material selection based on fluid analysis
cast iron
▪ Waste water containing dust or ash Wear-resistant white K Material selection based on fluid analysis
cast iron
Water/sand mixture Wear-resistant white K, F Solids content < 5 g/l: material variant GH
cast iron
Solids content > 5 g/l: material variant H
Seawater Duplex stainless steel K, F Material variant C2 up to a max. fluid temperature of 25 °C14)
Brackish water Duplex stainless steel K, F Material variant C1 or G1 (with 250 µm two-component epoxy resin) - depending on salt
content
Corrosive industrial waste water Duplex stainless steel K, F Material variant C1 or C2 based on fluid analysis

Submersible Motor Pump

Amarex KRT

Waste Water
8) For any fluids which are not listed in this table contact KSB.
9) The first impeller type listed should be given preference.
12) The hydrocarbons mentioned may occur in very high concentrations due to the difference in specific weight and their low solubility. If this is the case, contact KSB.
13) The required material variants highly depend on the operating hours, speed and flow velocity.
14) Higher fluid temperatures on request
9
 Overview of product features
10

Material variants G, G1, G2, GH

Feature Motors
Amarex KRT

2-pole 3 2E ... 7 2E - 5 2 … 25 2 37 2 … 55 2 - - - -
4-pole 2 4E ... 5 4E 4 4.KG 4 4 … 29 4 35 4 … 65 4 35 4.N … 80 4.N 95 4.N … 175 4.N 200 4.N … 350 4.N -
5 4.KG
7 4.KG
6-pole - 4 6.KG 4 6 … 19 6 32 6 … 50 6 32 6.N … 60 6.N 80 6.N … 165 6.N 190 6.N … 480 6.N 530 6.N … 850 6.N
6 6.KG
8-pole - - - 26 8 ... 35 8 26 8.N … 50 8.N 75 8.N … 130 8.N 150 8.N … 400 8.N 460 8.N … 760 8.N
10-pole - - - - - 40 10.N … 80 10.N 110 10.N … 350 10.N 390 10.N … 660 10.N
12-pole - - - - - - 105 12.N … 300 12.N 340 12.N … 560 12.N
Suction flange 15)

Shaft material
Shaft A 276 Type 420 A 576 Gr. 1045 A 276 Type 420 A 276 Type 420 A 276 Type 420
Shaft protecting sleeve - - - - A 276 Type 420 A 276 Type 420 A 276 Type 420 A 276 Type 420
Bearings Grease-packed rolling element bearings sealed for Grease- Pump end: re-greasable rolling element bearings
life packed rolling drive end: grease-packed rolling element bearings sealed for life
element
bearings
sealed for
life16)
Explosion protection
Versions U, W Not explosion-proof
Versions X, Z or Explosion-proof Class I, Division 1, Groups C & D, T3 -
Motor
Starting method DOL, soft starter, frequency inverter or star-delta DOL, soft starter, frequency inverter
Voltage 460 V17) 460 V18)
Cooling Cooled by Air cooling Cooled by surrounding fluid Cooled by surrounding fluid or via cooling jacket
surrounding fluid (convection)
Immersion depth 100 ft [30 m] max.
Power cable
Type See table "Overview of power cables"
Length 30 ft [10 m]19)

Submersible Motor Pump

Cable entry Absolutely watertight
Sealing elements

Waste Water
15) Drilled to ANSI B16.1 Class 125; not available for all sizes; on request
16) For D impeller: re-greasable rolling element bearings at the pump end, grease-packed rolling element bearings sealed for life at the drive end
17) Optional: 200 V, 230 V, 380 V, 575 V
18) Optional: 380 V, 575 V
19) Optional: up to 164 ft [50 m]
 Feature Motors
2-pole 3 2E ... 7 2E - 5 2 … 25 2 37 2 … 55 2 - - - -
4-pole 2 4E ... 5 4E 4 4.KG 4 4 … 29 4 35 4 … 65 4 35 4.N … 80 4.N 95 4.N … 175 4.N 200 4.N … 350 4.N -
5 4.KG
7 4.KG
6-pole - 4 6.KG 4 6 … 19 6 32 6 … 50 6 32 6.N … 60 6.N 80 6.N … 165 6.N 190 6.N … 480 6.N 530 6.N … 850 6.N
6 6.KG
8-pole - - - 26 8 ... 35 8 26 8.N … 50 8.N 75 8.N … 130 8.N 150 8.N … 400 8.N 460 8.N … 760 8.N
10-pole - - - - - 40 10.N … 80 10.N 110 10.N … 350 10.N 390 10.N … 660 10.N
12-pole - - - - - - 105 12.N … 300 12.N 340 12.N … 560 12.N
Elastomer seals Nitrile butadiene rubber NBR20)
Shaft seal Bellows-type mechanical seal21) Mechanical seal with
covered spring
Monitoring equipment
Winding temperature Temperature switch PTC Temperature switch (bimetal) in the winding
version U, W; installation (bimetal) in the
type S, P winding
Winding temperature Temperature switch PTC Temperature switch (bimetal) in the winding, plus PTC for explosion protection -
version X, Z; installation (bimetal) in the
type S, P winding, plus PTC for
explosion protection
Winding temperature; - PTC - PTC
installation type D, H, K
Coolant temperature; - - - - PTC
installation type D, K
Bearing temperature - - - -22) Pt100 at the pump end23) Pt100 at the pump
and drive end
Leakage inside the motor Leakage sensor in the motor space
Mechanical seal leakage - - - Float switch Float switch in leakage area
in the leakage
area for D
impeller
Vibration sensor - - - - -24)
Coating Environmentally friendly KSB standard coating, color RAL 500225)
Maximum fluid and ambient temperature

Submersible Motor Pump

Version U 104 °F [40 °C]
Amarex KRT

Version X 104 °F [40 °C] -

Waste Water
20) Optional: Viton = fluorocarbon rubber FPM
21) Optional: mechanical seal with covered spring
22) Optional: Pt100 at the pump end
23) Optional: Pt100 at the drive end
24) Optional: internal vibration sensor
11

25) Optional: 250 µm two-component epoxy coating

12

Feature Motors
2-pole 3 2E ... 7 2E - 5 2 … 25 2 37 2 … 55 2 - - - -
4-pole 2 4E ... 5 4E 4 4.KG 4 4 … 29 4 35 4 … 65 4 35 4.N … 80 4.N 95 4.N … 175 4.N 200 4.N … 350 4.N -
5 4.KG
Amarex KRT

7 4.KG
6-pole - 4 6.KG 4 6 … 19 6 32 6 … 50 6 32 6.N … 60 6.N 80 6.N … 165 6.N 190 6.N … 480 6.N 530 6.N … 850 6.N
6 6.KG
8-pole - - - 26 8 ... 35 8 26 8.N … 50 8.N 75 8.N … 130 8.N 150 8.N … 400 8.N 460 8.N … 760 8.N
10-pole - - - - - 40 10.N … 80 10.N 110 10.N … 350 10.N 390 10.N … 660 10.N
12-pole - - - - - - 105 12.N … 300 12.N 340 12.N … 560 12.N
Versions W, Z 140 °F [60 °C] - 140 °F [60 °C] -
Tests/inspections
Hydraulic system KSB standard (ZN 56525)26)
General KSB standard (ZN 56525)
Type of installation
Stationary, with guide Installation depth 15 ft [4.5 m]27)
cable arrangement
Stationary, with guide Installation depth 15 ft [4.5 m]28)
rail arrangement
Transportable Up to size 300-401, except sizes 200-500/501, 200-631, 250-630 -
Stationary, dry - 29) - With cooling jacket

Material variants H, C1, C2

Feature Motors
2-pole 3 2E ... 7 2E 5 2 … 25 2 - - - -
4-pole 2 4E ... 5 4E 4 4 … 29 4 35 4 … 65 4 80 4.N 95 4.N … 175 4.N 200 4.N ... 350 4.N
6-pole - 4 6 … 19 6 32 6 … 50 6 60 6.N 80 6.N … 165 6.N 190 6.N ... 480 6.N
8-pole - - 26 8 … 35 8 50 8.N 75 8.N … 130 8.N 150 8.N ... 480 8.N
10-pole - - - - - 110 10.N ... 350 10.N
12-pole - - - - - 105 12.N ... 300 12.N
Suction flange 30)

Shaft material for material variant H

Submersible Motor Pump

Shaft A 276 Type 420 A 576 Gr. 1045 A 276 Type 420
Shaft protecting sleeve - - - A 276 Type 420 A 276 Type 420
Shaft material for material variant C1, C2

Waste Water
26) Optional: S, D, E, F impellers to ISO 9906/A, K impellers to ISO 9906//1/2/A
27) Optional: up to 98 ft [30 m], from size 200-500 up to 49 ft [15 m]
28) Optional: up to 98 ft [30 m]
29) With convection cooling
30) Drilled to ANSI B16.1 Class 125; not available for all sizes; on request
 Feature Motors
2-pole 3 2E ... 7 2E 5 2 … 25 2 - - - -
4-pole 2 4E ... 5 4E 4 4 … 29 4 35 4 … 65 4 80 4.N 95 4.N … 175 4.N 200 4.N ... 350 4.N
6-pole - 4 6 … 19 6 32 6 … 50 6 60 6.N 80 6.N … 165 6.N 190 6.N ... 480 6.N
8-pole - - 26 8 … 35 8 50 8.N 75 8.N … 130 8.N 150 8.N ... 480 8.N
10-pole - - - - - 110 10.N ... 350 10.N
12-pole - - - - - 105 12.N ... 300 12.N
Shaft A 182 F51 / A 576 Gr. 1045 A 276 Type 420
Shaft protecting sleeve - - - A 182 F51 A 182 F51 A 182 F51
Bearings Grease-packed rolling element bearings sealed for life Pump end: re-greasable rolling element bearings
drive end: grease-packed rolling element bearings sealed for life
Explosion protection
Versions U, W Not explosion-proof
Versions X, Z or Explosion-proof Class I, Division 1, Groups C & D, T3 -
Motor
Starting method DOL, soft starter, frequency inverter or star-delta
Voltage 460 V31)
Cooling Cooled by surrounding fluid
Immersion depth 100 ft [30 m] max.
Power cable
Type See table "Overview of power cables"
Length 30 ft [10 m]32)
Cable entry Absolutely watertight
Sealing elements
Elastomer seals Nitrile butadiene rubber NBR33), for C2 generally fluorocarbon rubber FPM
Shaft seal C1: bellows-type mechanical seal34) Mechanical seal with
H, C2: mechanical seal with covered spring covered spring
Monitoring equipment
Winding temperature, Temperature switch (bimetal) in the winding
version U, W
Winding temperature, Temperature switch (bimetal) in the winding, plus PTC for explosion protection
version X, Z
Bearing temperature - - -35) Pt100 at the pump end36)
Leakage inside the Leakage sensor in the motor space

Submersible Motor Pump

motor
Amarex KRT

Waste Water
31) Optional: 200 V, 230 V, 380 V, 575 V
32) Optional: up to 164 ft [50 m]
33) Optional: Viton = fluorocarbon rubber FPM
34) Optional: mechanical seal with covered spring
35) Optional: Pt100 at the pump end
13

36) Optional: Pt100 at the drive end

14

Feature Motors
2-pole 3 2E ... 7 2E 5 2 … 25 2 - - - -
4-pole 2 4E ... 5 4E 4 4 … 29 4 35 4 … 65 4 80 4.N 95 4.N … 175 4.N 200 4.N ... 350 4.N
6-pole - 4 6 … 19 6 32 6 … 50 6 60 6.N 80 6.N … 165 6.N 190 6.N ... 480 6.N
Amarex KRT

8-pole - - 26 8 … 35 8 50 8.N 75 8.N … 130 8.N 150 8.N ... 480 8.N
10-pole - - - - - 110 10.N ... 350 10.N
12-pole - - - - - 105 12.N ... 300 12.N
Mechanical seal leakage - - Float switch in the Float switch in leakage area
leakage area for D
impeller
Vibration sensor - - -37)
Coating Material variant H: environmentally friendly KSB standard coating, primer dry film thickness 1 /2 - 2 mils (35-50 µm), top coat: two-component epoxy coating
1

dry film thickness 6 mils (150 mm), color RAL 500238)

Material variants C1, C2: without coating
Maximum fluid and ambient temperature
Version U, X 104 °F [40 °C]
Versions W, Z 140 °F [60 °C]
Tests/inspections
Hydraulic system KSB standard (ZN 56525)39)
General KSB standard (ZN 56525)
Type of installation
Stationary, with guide Installation depth 15 ft [4.5 m]40)
cable arrangement
Transportable Installation depth 15 ft [4.5 m]41)

Overview of power cables

Feature S1BN8-F S07RC4N8-F TEHSITE
rubber-sheathed cable rubber-sheathed cable Tefzel cable
Design Standard Optional Optional
Rated voltage 1000 V 750 V 750 V
EMC screening - ✓ -
Insulation material EPR42) EPR42) ETFE43)

Submersible Motor Pump

37) Optional: internal vibration sensor

Waste Water
38) Optional: dry film thickness 12 mils (300 µm)
39) Optional: S, D, E, F impellers to Hydraulic Institute, Level B; K impellers to Hydraulic Institute, Level A
40) Optional: up to 98 ft [30 m], from size 200-500 up to 49 ft [15 m]
41) Up to size 300-401, except sizes 200-501, 200-631, 250-630
42) EPR = ethylene propylene rubber
43) ETFE = ethylene tetrafluoroethylene
 Feature S1BN8-F S07RC4N8-F TEHSITE
rubber-sheathed cable rubber-sheathed cable Tefzel cable
Max. continuous temperature of insulation 194 °F [90 °C] 194 °F [90 °C] 275 °F [135 °C]
For permanent immersion in waste water to DIN VDE 0282-16/HD22.16 ✓ ✓ ✓

Submersible Motor Pump

Amarex KRT

Waste Water
15
 Waste Water
Submersible Motor Pump

Shaft seal
Available shaft seal types per bearing bracket
Standard design Standard variant44)
Mechanical seal with elastomer bellows (NBR, optional Viton)45) Product-side mechanical seal with covered spring46)47)

44) A surcharge and longer delivery times apply to standard variants.

45) For all types of waste water
46) For very abrasive fluids or fluids containing metallic particles (e.g. shavings from drilling)
47) Standard for material variants H and C2 (optional for material variants G, G1, G2, GH and C1)

16 Amarex KRT
 Waste Water
Submersible Motor Pump

Technical data
Gray cast iron (G, G1, G2, GH)
Size Impeller Dry installation Wet installation
(installation types D, H) (installation types S, P,
K)

Mass moment of inertia J48)

Max. operating pressure49)

Max. operating pressure49)

Number of impeller channels

Max. impeller diameter

Min. impeller diameter

Max. test pressure

Max. test pressure

Free passage
Material variant

[″] [″] [″] [psi] [psi] [psi] [psi] [kgm2]

S 40-250 G 4 9
/32 9 1/4 6 7/8 - - 145,0 188,6 0,03
S 50-216 G 4 3
/16 8 1/4 6 7/8 - - 130,5 174,0 0,018
F 40-250 G, G1, G2, GH - 1 8 1/4 5 7/8 - - 110,0 142,1 0,03
F 50-215 G, G1, G2, GH - 1 5/8 8 1/4 5 1/8 - - 116,0 152,3 0,019
F 50-216 G, G1, G2, GH - 1 8 1/4 4 11/16 - - 94,3 123,3 0,025
F 65-215 G, G1, G2, GH - 2 9/16 8 1/4 4 11/16 - - 79,8 108.8 0,025
F 80-216 G, G1, G2, GH - 3 8 1/4 4 11/16 - - 72,5 94,3 0,025
F 80-250 G, G1, G2, GH - 3 10 7/16 5 7/8 87,0 130,5 91,4 118,9 0,14
F 80-251 G - 4 9 1/16 5 11/16 - - 90,0 117,5 0,057
F100-215 G, G1, G2, GH - 3 15/16 8 1/4 4 11/16 - - 58,0 79,8 0,025
F 100-250 G, G1, G2, GH - 4 10 7/16 7 7/8 87,0 130,5 49,3 65,2 0,056
F 100-316 G, G1, G2, GH - 4 11 7/16 9 5/16 - - 71,1 92,8 0,075
F 100-401 G, G1, G2, GH - 4 15 3/8 12 13/16 145,0 217,5 110,2 142,1 0,248
F 150-315 G, G1, G2, GH - 4 3/4 11 7/16 9 13/16 87,0 130,5 26,1 33,4 0,144
F 150-401 G, G1, G2, GH - 5 5/16 15 3/8 10 5/8 145,0 217,5 61,0 79,8 0,248
E 80-251 G 1 3 10 5/8 8 7/8 87,0 130,5 59,5 78,3 0,17
E 100-251 G 1 3 1/8 - 3 3/4 9 15/16 7 1/4 87,0 130,5 49,3 65,3 0,18
E 150-315 G 1 4 1/2 - 4 3/4 12 5/8 10 87,0 130,5 45,0 59,5 0,31
E 150-401 G 1 4 1/2- 5 1/2 16 13 11/16 145,0 217,5 91,4 118,9 0,68
E 200-401 G 1 4 3/4 - 5 1/2 15 3/4 12 9/16 145,0 217,5 82,7 107,3 0,86
D 80-315 G, G1 1 2 1/2 10 1/4 9 1/16 145,0 217,5 150,8 197,3 0,124
D 100-251 G, G1 1 3 10 7/16 9 3/16 87,0 130,5 50,8 66,7 0,115
D 100-315 G, G1 1 3 8 3/4 7 11/16 - - 98,6 127,6 0,065
D 100-316 G, G1 1 3 3/8 12 1/16 10 5/8 - - 52,2 68,2 0,233
D 150-251 G, G1 1 4 10 8 7/8 87,0 130,5 27,5 34,8 0,115
D 150-315 G, G1 1 4 12 1/2 11 87,0 130,5 47,9 62,4 0,289
D 150-400 G, G1 1 4 14 15/16 12 13/16 - - 75,4 98,6 0,573
D 150-401 G, G1 1 4 3/8 15 1/8 14 9/16 - - 76,9 100,1 0,999
D 200-315 G, G1 1 4 12 3/8 11 87,0 130,5 39,2 49,3 0,261
D 200-400 G, G1 1 4 14 3/4 14 - - 60,9 79,8 0,825
D 250-400 G, G1 1 4 3/4 14 9/16 12 9/16 - - 50,8 66,7 0,653
D 300-400 G, G1 1 6 16 1/16 14 3/4 - - 24,7 31,9 0,925
K 40-250 G, G1, GH 3 5
/8 10 1/4 5 7/8 - - 145,0 188,5 0,047
K 80-251 G, G1, GH 2 1 1/8 8 11/16 5 1/2 - - 95,7 124,7 0,15
K 100-251 G, G1, GH 2 3 9 13/16 6 7/8 87,0 130,5 52,2 68,2 0,07
K 100-316 G, G1, GH 2 3 11 5/8 9 1/4 - - 71,1 92,8 0,13
K 100-400 G, G1 2 3 16 1/16 14 - - 133,4 174,1 1,1
K 100-401 G, G1, GH 2 2 15 7/8 12 3/16 145,0 217,5 134,9 175,5 0,504
K 150-315 G, G1, GH 2 3 12 3/16 9 1/4 87,0 130,5 50,8 66,7 0,18
K 150-400 G 3 3 15 7/8 11 13/16 - - 130,5 169,6 0,83
K 150-401 G, G1, GH 2 3 15 7/8 12 3/16 145,0 217,5 129,1 168,2 0,916

48) Data applies to maximum impeller diameter and impeller with water fill
49) Permissible operating pressure = inlet pressure + pressure at Q = 0

Amarex KRT 17
 Waste Water
Submersible Motor Pump

Size Impeller Dry installation Wet installation

(installation types D, H) (installation types S, P,
K)

Mass moment of inertia J48)

Max. operating pressure49)

Max. operating pressure49)

Number of impeller channels

Max. impeller diameter

Min. impeller diameter

Max. test pressure

Max. test pressure

Free passage
Material variant

[″] [″] [″] [psi] [psi] [psi] [psi] [kgm2]

K 151-401 G, G1, GH 3 3 1/8 16 1/16 11 13/16 145,0 217,5 124,7 162,4 0,52
K 200-315 G, G1, GH 3 2 3/4 11 5/8 9 5/8 87,0 130,5 27,6 34,8 0,22
K 200-316 G, G1, GH 2 4 12 10 7/16 87,0 130,5 24,7 31,9 0,22
K 200-330 G, G1, GH 3 2 3/4 12 13/16 11 5/16 145,0 217,5 75,4 100,1 0,35
K 200-400 G, G1 3 3 16 1/16 11 13/16 - - 98,6 127,6 0,52
K 200-401 G, G1, GH 3 3 1/8 15 7/8 13 145,0 217,5 103,0 133,4 0,52
K 200-501 G, G1 2 4 1/8 19 3/4 17 11/16 145,0 217,5 92,8 120,4 1,68
K 200-631 G, G1 2 4 1/8 24 1/2 21 1/4 145,0 217,5 142,1 185,6 4,41
K 250-400 G, G1, GH 3 3 3/8 14 9/16 11 13/16 145,0 217,5 95,7 123,3 0,5
K 250-401 G, G1, GH 2 4 1/8 15 3/4 12 3/16 145,0 217,5 87,0 113,1 0,55
K 250-630 G, G1 4 3 1/2 24 13/16 19 11/16 145,0 217,5 150,8 195,8 2,76
K 250-900 G, G1 3 4 5/16 22 1/16 28 1/4 232,0 348,0 169,7 220,5 19,03
K 300-400 G, G1 3 4 16 1/16 13 1/16 145,0 217,5 50,8 66,7 0,75
K 300-401 G, G1, GH 2 5 5/16 16 1/16 14 7/16 145,0 217,5 33,4 42,1 0,75
K 300-420 G, G1 3 4 16 1/16 14 9/16 87,0 130,5 50,8 105,9 0,95
K 300-500 G, G1 3 3 1/2 19 13/16 16 15/16 145,0 217,5 90,0 116,0 1,48
K 300-503 G, G1 5 2 18 7/8 15 15/16 145,0 217,5 129,1 168,2 2,5
K 350-420 G, G1 3 4 17 11/16 15 1/4 87,0 130,5 50,8 66,7 1,22
K 350-500 G, G1 3 4 5/16 20 16 3/4 87,0 130,5 82,7 107,3 3,12
K 350-501 G, G1 2 6 5/8 20 1/16 19 1/2 87,0 130,5 40,6 53,6 3
K 350-630 G, G1 3 5 5/16 24 13/16 19 11/16 145,0 217,5 105,9 136,3 5,22
K 350-636 G, G1 5 3 23 7/16 20 1/16 145,0 217,5 92,8 120,4 5,42
K 350-710 G, G1 3 4 1/4 28 3/4 22 13/16 145,0 217,5 136,3 176,9 10,6
K 400-500 G, G1 3 5 1/8 20 17 7/16 87,0 130,5 49,3 65,2 3,37
K 400-630 G, G1 3 5 1/4 24 7/16 21 1/2 87,0 130,5 89,9 116,0 8,21
K 400-710 G, G1 3 6 1/2 29 1/8 23 1/8 145,0 217,5 127,6 166,8 14
K 400-900 G, G1 3 5 1/8 32 11/16 25 15/16 232,0 348,0 163,9 213,2 17,79
K 500-630 G, G1 3 5 1/4 22 15/16 20 7/16 58,0 87,0 60,9 79,8 6,11
K 500-710 G, G1 3 6 29 1/8 23 1/8 916 174,1 100,1 130,5 13,0
K 500-900 G, G1 3 7 15/16 35 3/4 28 3/8 145,0 217,5 116,0 149,4 45
K 600-520 G, G1 3 5 11/16 20 15/16 18 58,0 87,0 34,8 46,4 7,02
K 600-710 G, G1 3 6 1/2 29 26 15/16 58,0 87,0 60,9 79,8 16,96
K 700-900 G, G1 3 7 1/2 33 7/16 29 1/16 43,5 65,0 47,9 62,4 40
K 700-901 G, G1 3 7 1/16 35 3/4 29 15/16 130,5 195,8 104,4 134,9 50

48) Data applies to maximum impeller diameter and impeller with water fill
49) Permissible operating pressure = inlet pressure + pressure at Q = 0

18 Amarex KRT
 Waste Water
Submersible Motor Pump

Gray cast iron (G, G1, G2, GH)

Size Impeller Dry installation Wet installation
(installation types D, H) (installation types S, P,
K)

Max. test pressure

Max. test pressure

Mass moment of
Number of impeller channels

Max. operating

Max. operating
Max. impeller

Min. impeller
Free passage

pressure49)

pressure49)

inertia J50)
diameter

diameter
Material variant

[mm] [mm] [mm] [bar] [bar] [bar] [bar] [kgm2]

S 40-250 G 4 7 235 175 - - 10 13 0,03

S 50-216 G 4 4 210 175 - - 9 12 0,018
F 40-250 G, G1, G2, GH - 25 210 150 - - 7,6 9,8 0,03
F 50-215 G, G1, G2, GH - 42 210 130 - - 8 10,5 0,019
F 50-216 G, G1, G2, GH - 25 210 120 - - 6,5 8,5 0,025
F 65-215 G, G1, G2, GH - 65 210 120 - - 5,5 7,5 0,025
F 80-216 G, G1, G2, GH - 76 210 120 - - 5,0 6,5 0,025
F 80-250 G, G1, G2, GH - 76 265 150 6 9 6,3 8,2 0,14
F 80-251 G - 50 230 145 - - 6,2 8,1 0,057
F100-215 G, G1, G2, GH - 100 210 120 - - 4,0 5,5 0,025
F 100-250 G, G1, G2, GH - 100 265 200 6 9 3,4 4,5 0,056
F 100-316 G, G1, G2, GH - 100 290 236 - - 4,9 6,4 0,075
F 100-401 G, G1, G2, GH - 100 390 325 10 15 7,6 9,8 0,248
F 150-315 G, G1, G2, GH - 120 290 250 6 9 1,8 2,3 0,144
F 150-401 G, G1, G2, GH - 135 390 270 10 15 4,2 5,5 0,248
E 80-251 G 1 76 270 225 6 9 4,1 5,4 0,17
E 100-251 G 1 80-95 252 184 6 9 3,4 4,5 0,18
E 150-315 G 1 110-120 320 254 6 9 3,1 4,1 0,31
E 150-401 G 1 115-140 407 348 10 15 6,3 8,2 0,68
E 200-401 G 1 121-143 400 319 10 15 5,7 7,4 0,86
D 80-315 G, G1 1 65 260 230 10 15 10,4 13,6 0,124
D 100-251 G, G1 1 76 265 234 6 9 3,5 4,6 0,115
D 100-315 G, G1 1 75 222 196 - - 6,8 8,8 0,065
D 100-316 G, G1 1 85 306 270 - - 3,6 4,7 0,233
D 150-251 G, G1 1 100 254 225 6 9 1,9 2,4 0,115
D 150-315 G, G1 1 100 317 280 6 9 3,3 4,3 0,289
D 150-400 G, G1 1 100 363 326 - - 5,2 6,8 0,573
D 150-401 G, G1 1 110 384 370 - - 5,3 6,9 0,999
D 200-315 G, G1 1 100 315 280 6 9 2,7 3,4 0,261
D 200-400 G, G1 1 100 375 355 - - 4,2 5,5 0,825
D 250-400 G, G1 1 120 370 320 - - 3,5 4,6 0,653
D 300-400 G, G1 1 150 408 375 - - 1,7 2,2 0,925
K 40-250 G, G1, GH 3 15 260 150 - - 10 13 0,047
K 80-251 G, G1, GH 2 33 220 140 - - 6,6 8,6 0,15
K 100-251 G, G1, GH 2 76 250 175 6 9 3,6 4,7 0,07
K 100-316 G, G1, GH 2 76 295 235 - - 4,9 6,4 0,13
K 100-400 G, G1 2 76 408 355 - - 9,2 12 1,1
K 100-401 G, G1, GH 2 50 404 310 10 15 9,3 12,1 0,504
K 150-315 G, G1, GH 2 76 310 235 6 9 3,5 4,6 0,18
K 150-400 G 3 76 404 300 - - 9,0 11,7 0,83
K 150-401 G, G1, GH 2 76 404 310 10 15 8,9 11,6 0,916
K 151-401 G, G1, GH 3 80 408 300 10 15 8,6 11,2 0,52
K 200-315 G, G1, GH 3 70 295 245 6 9 1,9 2,4 0,22
K 200-316 G, G1, GH 2 100 305 265 6 9 1,7 2,2 0,22
K 200-330 G, G1, GH 3 70 326 287 10 15 5,2 6,8 0,35
K 200-400 G, G1 3 76 408 300 - - 6,8 8,8 0,52
K 200-401 G, G1, GH 3 80 404 330 10 15 7,1 9,2 0,52
K 200-501 G, G1 2 105 502 450 10 15 6,4 8,3 1,68

50) Data applies to maximum impeller diameter and impeller with water fill

Amarex KRT 19
 Waste Water
Submersible Motor Pump

Size Impeller Dry installation Wet installation

(installation types D, H) (installation types S, P,
K)

Mass moment of inertia J50)

Max. operating pressure49)

Max. operating pressure49)

Number of impeller channels

Max. test pressure

Max. test pressure

Max. impeller

Min. impeller
Free passage
Material variant

diameter

diameter
[mm] [mm] [mm] [bar] [bar] [bar] [bar] [kgm2]
K 200-631 G, G1 2 105 622 540 10 15 9,8 12,8 4,41
K 250-400 G, G1, GH 3 85 370 300 10 15 6,6 8,5 0,5
K 250-401 G, G1, GH 2 105 400 310 10 15 6 7,8 0,55
K 250-630 G, G1 4 90 630 500 10 15 10,4 13,5 2,76
K 250-900 G, G1 3 110 840 717 16 24 11,7 15,2 19,03
K 300-400 G, G1 3 100 408 332 10 15 3,5 4,6 0,75
K 300-401 G, G1, GH 2 135 408 367 10 15 2,3 2,9 0,75
K 300-420 G, G1 3 100 408 370 6 9 5,6 7,3 0,95
K 300-500 G, G1 3 90 504 430 10 15 6,2 8 1,48
K 300-503 G, G1 5 50 480 405 10 15 8,9 11,6 2,5
K 350-420 G, G1 3 100 450 387 6 9 3,5 4,6 1,22
K 350-500 G, G1 3 110 508 426 6 9 5,7 7,4 3,12
K 350-501 G, G1 2 170 509 495 6 9 2,8 3,7 3
K 350-630 G, G1 3 135 630 500 10 15 7,3 9,4 5,22
K 350-636 G, G1 5 75 595 510 10 15 6,4 8,3 5,42
K 350-710 G, G1 3 110 730 580 10 15 9,4 12,2 10,6
K 400-500 G, G1 3 130 508 443 6 9 3,4 4,5 3,37
K 400-630 G, G1 3 132 620 546 6 9 6,2 8 8,21
K 400-710 G, G1 3 165 739 587 10 15 8,8 11,5 14
K 400-900 G, G1 3 130 830 659 16 24 11,3 14,7 17,79
K 500-630 G, G1 3 133 582 520 4 6 4,2 5,5 6,11
K 500-710 G, G1 3 150 739 586 8 12 6,9 9,0 13,0
K 500-900 G, G1 3 202 908 721 10 15 8 10,3 45
K 600-520 G, G1 3 145 532 457 4 6 2,4 3,2 7,02
K 600-710 G, G1 3 165 736 685 4 6 4,2 5,5 16,96
K 700-900 G, G1 3 190 850 738 3 4,5 3,3 4,3 40
K 700-901 G, G1 3 180 908 760 9 13,5 7,2 9,3 50

Industrial materials (H, C1, C2)

Size Impeller Wet installation Mass moment of inertia J48)
(installation type S, P)
Number of impeller channels

Max. test pressure

Max. impeller diameter

Max. operating pressure49)

Min. impeller diameter
Free passage
Material variant

[″] [″] [″] [psi] [psi] [kgm2]

F 40-250 H, C1, C2 - 1 8 1/4 5 7/8 114,6 142,1 0,03
F 50-215 H, C1, C2 - 1 5/8 8 1/4 5 1/8 116,0 152,3 0,019
F 50-216 H, C1, C2 - 1 8 1/4 4 11/16 94,3 123,3 0,025
F 65-215 H, C1, C2 - 2 9/16 8 1/4 4 11/16 79,8 108,8 0,025
F 80-216 H, C1, C2 - 3 8 1/4 4 11/16 72,5 94,3 0,025
F 100-250 H, C1, C2 - 4 10 7/16 7 7/8 49,3 65,3 0,056

50) Data applies to maximum impeller diameter and impeller with water fill

20 Amarex KRT
 Waste Water
Submersible Motor Pump

Size Impeller Wet installation

Mass moment of inertia J48)

(installation type S, P)

Number of impeller channels

Max. test pressure

Max. impeller diameter

Max. operating pressure49)

Min. impeller diameter

Free passage
Material variant

[″] [″] [″] [psi] [psi] [kgm2]

F 100-316 H, C1, C2 - 4 11 7/16 9 5/16 71,1 92,8 0,075
F 100-401 H, C1, C2 - 4 15 3/8 12 13/16 110,2 142,1 0,248
F 150-315 H, C1, C2 - 4 3/4 11 7/16 9 13/16 26,1 33,4 0,144
F 150-401 H, C1, C2 - 5 5/16 15 /8
3
10 5/8 60,9 79,8 0,248
K 40-250 H, C1, C2 3 5
/8 10 /4
1
5 7/8 145,0 188,6 0,047
K 80-251 H, C1, C2 2 1 1/8 8 /16
11
5 1/2 95,0 124,7 0,15
K 100-251 H, C1, C2 2 3 9 13/16 6 7/8 52,2 68,2 0,07
K 100-316 H, C1, C2 2 3 11 5/8 9 1/4 71,1 92,8 0,13
K 100-400 C1, C2 3 3 16 1/16 14 137,8 179,9 1,1
K 100-401 H, C1, C2 2 2 15 7/8 12 3/16 134,9 175,5 0,504
K 150-315 H, C1, C2 2 3 12 3/16 9 1/4 50,8 66,7 0,18
K 150-401 H, C1, C2 2 3 15 /87
12 3/16 129,1 168,2 0,916
K 151-401 H, C1, C2 3 3 1/8 15 /8 11 13/16
7
124,7 162,4 0,52
K 200-315 H, C1, C2 3 2 3/4 11 5/8 9 5/8 27,6 34,8 0,22
K 200-316 H, C1, C2 2 4 12 10 7/16 24,7 31,9 0,22
K 200-330 H, C1, C2 3 2 3/4 12 13/16 11 5/16 75,4 98,6 0,35
K 200-401 H, C1, C2 3 3 1/8 15 7/8 13 103,0 98,6 0,52
K 200-501 C1, C2 2 4 1/8 19 3/4 17 11/16 92,8 120,4 1,68
K 200-631 C1, C2 2 4 1/8 24 1/2 21 1/4 142,1 185,6 4,41
K 250-400 H, C1, C2 3 3 3/8 14 /16 11 13/16
9
95,7 123,3 0,5
K 250-401 H, C1, C2 2 4 1/8 15 3/4 12 3/16 87,0 113,1 0,55
K 250-630 C1, C2 3 3 9/16 24 /16 19 11/16
13
150,8 195,8 2,76
K 300-400 H, C1, C2 3 4 16 1/16 13 1/16 50,8 66,7 0,75
K 300-401 H, C1, C2 2 5 5/16 16 1/16 14 7/16 33,4 42,1 0,75
K 300-420 C1, C2 3 4 16 1/16 14 9/16 81,2 105,9 0,95
K 300-500 C1, C2 3 3 9/16 19 13/16 16 15/16 90,0 116,0 1,48
K 300-503 C1, C2 5 2 18 7/8 15 15/16 129,1 168,2 2,5
K 350-420 C1, C2 3 4 17 11/16 15 1/4 50,8 66,7 1,22
K 350-500 C1, C2 3 4 5/16 20 16 3/4 82,7 107,3 3,12
K 350-630 C1, C2 3 5 5/16 24 /16 19 11/16
13
105,9 136,3 5,22
K 350-636 C1, C2 5 3 23 7/16 20 1/16 92,8 120,4 5,42
K 350-710 C1, C2 3 4 5/16 28 3/4 22 13/16 136,3 177,0 10,6
K 400-500 C1, C2 3 5 1/8 20 17 7/16 49,3 65,3 3,37
K 400-630 C1, C2 3 5 1/4 24 /16
7
21 1/2 90,0 116,0 8,21
K 500-630 C1, C2 3 5 1/4 22 15/16 20 7/8 60,9 79,8 6,11
K 600-520 C1, C2 3 5 3/4 20 15/16 18 34,8 46,4 7,02
K 600-710 C1, C2 3 6 1/2 29 26 15/16 60,9 79,8 16,96
K 700-900 C1, C2 3 7 1/2 33 7/16 29 1/16 47,9 62,4 40
K 700-901 C1, C2 3 7 1/16 35 /4 29 15/16
3
104,4 134,9 50

Amarex KRT 21
 Waste Water
Submersible Motor Pump

Industrial materials (H, C1, C2)

Size Impeller Wet installation (installation types S, P)

Mass moment of
Number of impeller
Max. operating Max. test pressure

Max. impeller

Min. impeller
Free passage
Material variant
pressure49)

channels

inertia J48)
diameter

diameter
[mm] [mm] [mm] [bar] [bar] [kgm2]
F 40-250 H, C1, C2 - 25 210 150 7,6 9,8 0,03
F 50-215 H, C1, C2 - 42 210 130 8,0 10,5 0,019
F 50-216 H, C1, C2 - 25 210 120 6,5 8,5 0,025
F 65-215 H, C1, C2 - 65 210 120 5,5 7,5 0,025
F 80-216 H, C1, C2 - 76 210 120 5,0 6,5 0,025
F 100-250 H, C1, C2 - 100 265 200 3,4 4,5 0,056
F 100-316 H, C1, C2 - 100 290 236 4,9 6,4 0,075
F 100-401 H, C1, C2 - 100 390 325 7,6 9,8 0,248
F 150-315 H, C1, C2 - 120 290 250 1,8 2,3 0,144
F 150-401 H, C1, C2 - 135 390 270 4,2 5,5 0,248
K 40-250 H, C1, C2 3 15 260 150 10 13 0,047
K 80-251 H, C1, C2 2 33 220 140 6,6 8,6 0,15
K 100-251 H, C1, C2 2 76 250 175 3,6 4,7 0,07
K 100-316 H, C1, C2 2 76 295 235 4,9 6,4 0,13
K 100-400 C1, C2 3 76 408 355 9,5 12,4 1,1
K 100-401 H, C1, C2 2 50 404 310 9,3 12,1 0,504
K 150-315 H, C1, C2 2 76 310 235 3,5 4,6 0,18
K 150-401 H, C1, C2 2 76 404 310 8,9 11,6 0,916
K 151-401 H, C1, C2 3 80 404 300 8,6 11,2 0,52
K 200-315 H, C1, C2 3 70 295 245 1,9 2,4 0,22
K 200-316 H, C1, C2 2 100 305 265 1,7 2,2 0,22
K 200-330 H, C1, C2 3 70 326 287 5,2 6,8 0,35
K 200-401 H, C1, C2 3 80 404 330 7,1 9,2 0,52
K 200-501 C1, C2 2 105 502 450 6,4 8,3 1,68
K 200-631 C1, C2 2 105 622 540 9,8 12,8 4,41
K 250-400 H, C1, C2 3 85 370 300 6,6 8,5 0,5
K 250-401 H, C1, C2 2 105 400 310 6 7,8 0,55
K 250-630 C1, C2 3 90 630 500 10,4 13,5 2,76
K 300-400 H, C1, C2 3 100 408 332 3,5 4,6 0,75
K 300-401 H, C1, C2 2 135 408 367 2,3 2,9 0,75
K 300-420 C1, C2 3 100 408 370 5,6 7,3 0,95
K 300-500 C1, C2 3 90 504 430 6,2 8 1,48
K 300-503 C1, C2 5 50 480 405 8,9 11,6 2,5
K 350-420 C1, C2 3 100 450 387 3,5 4,6 1,22
K 350-500 C1, C2 3 110 508 426 5,7 7,4 3,12
K 350-630 C1, C2 3 135 630 500 7,3 9,4 5,22
K 350-636 C1, C2 5 75 595 510 6,4 8,3 5,42
K 350-710 C1, C2 3 110 730 580 9,4 12,2 10,6
K 400-500 C1, C2 3 130 508 443 3,4 4,5 3,37
K 400-630 C1, C2 3 132 620 546 6,2 8 8,21
K 500-630 C1, C2 3 133 582 520 4,2 5,5 6,11
K 600-520 C1, C2 3 145 532 457 2,4 3,2 7,02
K 600-710 C1, C2 3 165 736 685 4,2 5,5 16,96
K 700-900 C1, C2 3 190 850 738 3,3 4,3 40
K 700-901 C1, C2 3 180 908 760 7,2 9,3 50

Mass moments of inertia as a function of motor size Motor Mass moment of inertia J
2-pole [kgm2]
Motor Mass moment of inertia J 82 0,01
12 2 0,02
[kgm2]
17 2 0,03
32 0,002
22 2 / 25 2 0,04
42 0,002
23 2 0,05
52 0,01
37 2 0,13
62 0,01
55 2 0,14
72 0,01

22 Amarex KRT
 Waste Water
Submersible Motor Pump

4-pole Motor Mass moment of inertia J

Motor Mass moment of inertia J [kgm2]
[kgm2] 530 6.N 31,5
24 0,002 580 6.N 36,3
34 0,002 630 6.N 41,1
44 0,01 690 6.N 45,8
54 0,01 770 6.N 50,6
74 0,02 850 6.N 55,3
11 4 0,04 8-pole
16 4 0,05
Motor Mass moment of inertia J
4 4.KG / 5 4.KG 0,05
7 4.KG 0,06 [kgm2]
19 4 / 21 4 0,06 10 8 0,09
23 4 0,07 17 8 0,12
29 4 0,11 21 8 0,18
35 4 0,22 26 8 0,37
50 4 0,25 35 8 0,47
65 4 0,30 26 8.N 0,40
35 4.N 0,25 35 8.N 0,50
50 4.N 0,28 50 8.N 0,66
65 4.N 0,33 75 8.N 0,94
80 4.N 0,46 90 8.N 1,98
95 4.N 0,55 110 8.N 2,25
110 4.N 0,63 130 8.N 2,55
130 4.N 1,26 150 8.N 7,30
155 4.N 1,43 185 8.N 8,57
175 4.N 1,57 220 8.N 9,84
200 4.N 3,78 260 8.N 13,3
250 4.N 4,13 300 8.N 15,9
300 4.N 4,82 350 8.N 19,1
350 4.N 5,51 400 8.N 20,7
460 8.N 31,5
6-pole
530 8.N 36,3
Motor Mass moment of inertia J 580 8.N 41,1
[kgm2] 630 8.N 45,8
46 0,02 690 8.N 50,6
66 0,02 760 8.N 55,3
96 0,05 10-pole
12 6 0,07
Motor Mass moment of inertia J
4 6.KG 0,07
6 6.KG 0,09 [kgm2]
15 6 0,09 40 10.N 1,75
19 6 0,09 60 10.N 1,93
20 6 0,10 75 10.N 2,20
26 6 0,13 90 10.N 2,49
32 6 0,34 110 10.N 7,96
40 6 0,42 150 10.N 9,66
50 6 0,51 190 10.N 11,8
32 6.N 0,37 230 10.N 17,7
40 6.N 0,45 270 10.N 20,5
50 6.N 0,54 310 10.N 23,2
60 6.N 0,66 350 10.N 25,8
80 6.N 0,80 390 10.N 36,1
100 6.N 0,94 430 10.N 41,6
120 6.N 1,89 475 10.N 47,2
140 6.N 2,25 535 10.N 52,7
165 6.N 2,55 600 10.N 58,2
190 6.N 7,30 660 10.N 63,7
225 6.N 8,57 12-pole
260 6.N 9,84
Motor Mass moment of inertia J
320 6.N 14,3
360 6.N 15,9 [kgm2]
400 6.N 17,6 105 12.N 7,96
440 6.N 19,2 135 12.N 9,66
480 6.N 20,7 165 12.N 11,8
195 12.N 17,7

Amarex KRT 23
 Waste Water
Submersible Motor Pump

Motor Mass moment of inertia J Motor Mass moment of inertia J

[kgm2] [kgm2]
230 12.N 20,5 380 12.N 47,2
265 12.N 23,2 450 12.N 52,7
290 12.N 36,1 490 12.N 58,2
300 12.N 25,8 560 12.N 63,7
340 12.N 41,6

24 Amarex KRT
 Waste Water
Submersible Motor Pump

Selection charts

Amarex KRT 40-.../80-.../100-..., n = 3500/1750/1160 rpm, K impeller

0.3 0.4 0.5 m³/h 1 2 3 4 5 10 20 30 40 50 100 200 300 400

0.1 l/s 0.2 0.3 0.4 0.5 1 2 3 4 5 10 20 30 40 50 100

300

200
100-400K/4p
100-401K/4p
40-250K/2p 50

40

100 30

80-251K/2p
100-316K/4p 20

50 40-250K/4p

40

100-251K/6p
10
30

20

5
H
[ft]
4

10
1 Q[US.gpm] 2 3 4 5 10 20 30 40 50 100 200 300 400 500 1000 2000

1 IM.gpm 2 3 4 5 10 20 30 40 50 100 200 300 400 500 1000

Amarex KRT 150-.../151-.../200-..., n = 1750/1160/875 rpm, K impeller

50 m³/h 100 200 300 400 500 1000

20 30 40 50 l/s 100 200 300 400

300

200 151-401K/4p
150-400K/4p 50
200-631K
40

100 30
150-401K/4p 200-400K/4p
150-401K/6p
150-400K/6p 200-330K/4p 20

50
200-400K/6p
40

150-315K/6p 200-330K/6p 10
30

20

5
200-315K/6p 4

10 3
H
[ft]
2
200-316K/6p
5 m
4

1
3

2
200 300 400 500 Q[US.gpm] 1000 2000 3000 4000 5000 7000

200 300 400 500 IM.gpm 1000 2000 3000 4000 5000

Amarex KRT 25
 Waste Water
Submersible Motor Pump

Amarex KRT 250-.../300-..., n = 1750/1160/875 rpm, K impeller

200 300 400 500 m³/h 1000 2000 3000 4000

50 l/s 100 200 300 400 500 1000

400

100
300

250-630K/6p 250-900K/8p
200

250-630K/8p 50

40
300-503K
100 30

300-500K/6p
20

250-400K/6p
50 300-420K/6p
250-400K/4p
40

10
30

300-400K/6p m

20 300-400K/6p
250-400K/8p
5

4
300-400K/8p
250-401K/6p
300-401K/8p
10 3

H
[ft]
2

5
700 1000 Q[US.gpm] 2000 3000 4000 5000 10000 20000

1000 IM.gpm 2000 3000 4000 5000 10000

Amarex KRT 350-.../400-.../500-.../600-.../700-.../900-..., n = 1160/875/700/585 rpm, K impeller

500 m³/h 1000 2000 3000 4000 5000 10000

200 300 400 500 l/s 1000 2000 3000

300

400-900K/8p

200
350-630K/6p
350-710K/8p 50

350-636K/8p 500-900K/10p 40

400-710K/8p
100 350-630K/6p 30
350-500K/6p

700-901K/10p
500-710K/8p 20

350-420K/6p
50 400-630K/8p
350-500K/8p
40 600-710K/10p

350-501K/10p 10
30 600-710K/12p
350-500K/10p

400-500K/10p 400-500K/8p 700-900K/12p m

500-630K/8p
20

H 5
350-501K/8p 600-520K/10p
[ft]
4
500-630K/10p

10 3

500-630K/12p

2
6
2000 3000 4000 5000 Q[US.gpm] 10000 20000 30000 40000 50000

2000 3000 4000 5000 IM.gpm 10000 20000 30000 40000

26 Amarex KRT
 Waste Water
Submersible Motor Pump

Amarex KRT, n = 1750/1160/875 rpm, D impeller

30 40 50 m³/h 100 200 300 400 500 1000

10 l/s 20 30 40 50 100 200 300

200

50

40

100 30

150-401D/6p
20
80-315D/4p

50
100-251D/4p
40
150-400D/6p
10
30 100-315D/4p
200-400D/6p
100-316D/6p
20 150-315D/6p

200-315D/6p 4

10 3
150-251D/6p 250-400D/6p
100-251D/6p
H
[ft]
2

250-400D/8p 300-400D/8p
5
m

1
3
100 Q[US.gpm] 200 300 400 500 1000 2000 3000 4000 5000

100 IM.gpm 200 300 400 500 1000 2000 3000 4000

Amarex KRT, n = 1750/1160 rpm, E impeller

20 30 40 50 m³/h 100 200 300 400 500

4 5 l/s 10 20 30 40 50 100 200

200

50

40

100 30

80-251E/4p
20
150-401E/6p

50
100-251E/4p
40

10
30 80-200E/4p
200-401E/6p

20

80-251E/6p 150-315E/6p 5
H
[ft]
4

10 3

7
50 Q[US.gpm] 100 200 300 400 500 1000 2000 3000 4000

50 IM.gpm 100 200 300 400 500 1000 2000 3000

Amarex KRT 27
 Waste Water
Submersible Motor Pump

Amarex KRT, n = 3500/1750/1160 rpm, F impeller

0.3 0.4 0.5 m³/h 1 2 3 4 5 10 20 30 40 50 100 200 300 400 500

0.1 l/s 0.2 0.3 0.4 0.5 1 2 3 4 5 10 20 30 40 50 100

300

200
100-401F/4p
40-250F/2p 50

80-250F/2p 40
100-316F/4p
100 30

80-250F/4p 20
100-250F/4p

50
150-401F/6p
40 40-250F/4p

10
30

m
150-315F/6p
20

10 80-250F/6p
3

H
[ft]
2

4
1 Q[US.gpm] 2 3 4 5 10 20 30 40 50 100 200 300 400 500 1000 2000 3000

1 IM.gpm 2 3 4 5 10 20 30 40 50 100 200 300 400 500 1000 2000

Amarex KRT, n = 1750 rpm, F-max impeller

4 5 US.gpm 10 20 30 40 50 100 200 300 400 500

4 5 IM.gpm 10 20 30 40 50 100 200 300 400

80

20

50
50-216F /4p
40
65-215F /4p
50-215F /4p 10
30

20

80-216F /4p
4

100-215F /4p
10 3

H
[ft] 2

5
m

1
3

2
4 5 Q[US.gpm] 10 20 30 40 50 100 200 300 400 500

0.3 0.4 0.5 l/s 1 2 3 4 5 10 20 30

28 Amarex KRT
 Waste Water
Submersible Motor Pump

Amarex KRT, n = 3500 rpm, S impeller

0.3 0.4 0.5 m³/h 1 2 3 4 5 10 20 30 40

0.1 l/s 0.2 0.3 0.4 0.5 1 2 3 4 5 10

400

100
300

40-250S/2p
200

50

40

100 30

H
[ft]
20

50
m

40

10
30
1 Q[US.gpm] 2 3 4 5 10 20 30 40 50 100 200

1 IM.gpm 2 3 4 5 10 20 30 40 50 100

Amarex KRT, n = 3500 rpm, S-max impeller

4 5 US.gpm 10 20 30 40 50 100

4 5 IM.gpm 10 20 30 40 50
300

200

50-216S /2p

50

H
[ft]

40

100
30

80
4 5 Q[US.gpm] 10 20 30 40 50 100

0.3 0.4 0.5 l/s 1 2 3 4 5

Amarex KRT 29
 Waste Water
Submersible Motor Pump

Installation types ▪ Installation type K: stationary wet installation (S1

operation with motor outside of the fluid)
▪ Installation type S: stationary wet installation (S1
operation with submerged motor) ▪ Installation type H: stationary dry installation, horizontal
(S1 operation)
▪ Installation type D: stationary dry installation, vertical (S1
operation)
▪ Installation type P: transportable wet installation (S1
operation with submerged motor)

30 Amarex KRT
 Waste Water
Submersible Motor Pump

General assembly drawings with list of components

Amarex KRT, 2.0 hp to 10.0 hp

932.13

322

421.01

818

834
81-59

811
412.07

350
412.02 321
903.03
411.03 932.04

932.03
441

412.03
433.01 932.02
515

433.02 412.04
412.15
163

230

550.23

914.10
101

Amarex KRT 31
 Waste Water
Submersible Motor Pump

Part No. Description Part No. Description

101 Pump casing 561.03 Grooved pin
162 Suction cover 596 Wire
23-7 Impeller body 69-14.02 Leakage sensor
230 Impeller 81-51 Clamping element
321 Radial ball bearing 81-59 Stator
322 Cylindrical roller bearing 811 Motor housing
350 Bearing housing 818 Rotor
411.03 Joint ring 834 Cable gland
412.02/.03/.04/.07/.15 O-ring 901.20 Hexagon head bolt
421.01 Lip seal 903.03 Screw plug
433.01/.02 Mechanical seal 914.04/.07/.10/.15/.16 Hexagon socket head cap
screw
441 Shaft seal housing 930.20 Safety device
500.07 Ring 932.02/.03./.04/.05/.13 Circlip
515 Taper lock ring 970.02 Name plate
550.23 Disc

Amarex KRT, 5.5 hp to 40.0 hp

Example: Amarex KRT E 150-315/20 6 WG Motors:
5 2 ... 25 2
4 4 ... 29 4
4 6 ... 26 6

X
503

811

210

330

433.01
410

113 410

433.02

X
101 502 230 900

32 Amarex KRT
 Waste Water
Submersible Motor Pump

List of components
Part No. Description Part No. Description
101 Pump casing 433.01/02 Mechanical seal
113 Intermediate casing 502 Casing wear ring
210 Shaft 503 Impeller wear ring
230 Impeller 811 Motor housing
330 Bearing bracket 900 Screw
410 Profile joint

Amarex KRT, 36.0 hp to 80.0 hp

Example: Amarex KRT E/K 150-401/65 4 XG Motors:
29 4 ... 65 4
20 6 ... 50 6
10 8 ... 35 8

811 X
503

210

330
412

113

900 502 230 101

List of components
Part No. Description Part No. Description
101 Pump casing 412 O-ring
113 Intermediate casing 502 Casing wear ring
210 Shaft 503 Impeller wear ring
230 Impeller 811 Motor housing
330 Bearing bracket 900 Screw

Amarex KRT 33
 Waste Water
Submersible Motor Pump

Amarex KRT, 6.5 hp to 50.0 hp

Example: Amarex KRT D 300-400 / 21 8 XG Motors:
5 4 ... 65 4
4 6 ... 50 6
10 8 ... 26 8

811

210

900

410

330
433.01

900

433.02

113

230

410

101

502

List of components
Part No. Description Part No. Description
101 Pump casing 410 Profile joint
113 Intermediate casing 433.01/02 Mechanical seal
210 Shaft 502 Casing wear ring
230 Impeller 811 Motor housing
330 Bearing bracket 900 Screw

34 Amarex KRT
 Waste Water
Submersible Motor Pump

Amarex KRT, 47.0 hp to 640.0 hp, without cooling jacket

Example: Amarex KRT K 150-401 / 130 4 XNG-S without cooling jacket Motors:
80 4 N ... 350 4 N
60 6 N ... 480 6 N
50 8 N ... 400 8 N
40 10 N ... 350 10 N
105 12 N ... 310 12 N

811

210
410

900 433.01

350

433.02

163

230

502
101

List of components
Part No. Description Part No. Description
101 Pump casing 410 Profile joint
163 Discharge cover 433.01/02 Mechanical seal
210 Shaft 502 Casing wear ring
230 Impeller 811 Motor housing
350 Bearing housing 900 Screw

Amarex KRT 35
 Waste Water
Submersible Motor Pump

Amarex KRT, 47.0 hp to 640.0 hp, with cooling jacket

Example: Amarex KRT K 150-401 / 130 4 XNG-K with cooling jacket Motors:
80 4 N ... 350 4 N
60 6 N ... 480 6 N
50 8 N ... 400 8 N
40 10 N ... 350 10 N
105 12 N ... 310 12 N

811

210

350

900
433.01
433.02

163

410
101

230

502

List of components
Part No. Description Part No. Description
101 Pump casing 410 Profile joint
163 Discharge cover 433.01/02 Mechanical seal
210 Shaft 502 Casing wear ring
230 Impeller 811 Motor housing
350 Bearing housing 900 Screw

36 Amarex KRT
 09.12.2015
2553.524/08_EN-US

KSB, Inc.
4415 Sarellen Road • Richmond, VA 23231
Phone: (804) 222-1818 • Fax: (804) 226-6961 • www.ksbusa.com
KSB PUMPS Inc.
5885 Kennedy Road • Mississauga • Ontario L 4Z 2G3
Phone: (905) 568-9200 • Fax: (905) 568-3740 • www.ksb.ca