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CHTR - Centrifugal, high-pressure, multistage barrel pump to API 610 8th edition
- lower power consumption- higher costsinitial
- power consumption- costs
higher lower initial
5.0
5.1
5.2
5.25.15.0
H
H0pt
Setting processes in motion with high pressure.
Whether small capacities against high pressures or large capacities against medium pressures - KSB's pump type CHTR are adaptable to the various processes. Modular design allows four sizes with up to 18 stages to be selected. KSB's know-how in hydraulics, rigid pump shafts and long inter-stage bushings and wear rings providing hydrostatic supporting forces make it possible to build reliable pumps with large numbers of stages.
Maximum efficiency
It is possible to combine two
special impeller configurations
with six diffuser configurations
for each pump size. In total, we
have more than 30 hydraulic
configurations. The hydraulic
duty points are so finely
distributed and the impeller
profiles have special cut-down
characteristics such that an
optimum efficiency will be
available for every need. The
modular design enables
optimization of pumps with
regard to :
- power consumption
(efficiency)- initial costs (number of stages)- NPSH-value
Impeller without locking ring(Optional)
Drive end bearings- Can be dismantled without disturbing motor / pump piping connections.
Seal casing executionwith or without cooling as perrequirement
Fan cooling on request. Heavy duty thrust bearing design- With force lubrication for higher loading/speed- Special design to provides self alignment feature for main loaded bearing
Design Features
Antifriction Bearings- Ring oil lubrication- Provision for purge mist lubrication on request- Water cooled bearing housing
Pre
ssu
re c
asi
ng
co
mp
on
en
tsD
esi
gn
ed
as
per
gu
idelin
es
of
ASM
E S
ec.
VIII D
iv.
1
Imp
eller
loca
ted
in
div
idu
ally a
nd
lock
ed
in
th
e d
irect
ion
of
no
rmal axia
l th
rust
desi
gn
to
API 610.
Se
al ca
vit
y d
imen
sio
ns
to A
PI 610
/8 T
ab
le 2
.3D
esi
gn
to
me
at
dis
charg
ep
ress
ure
rati
ng
cri
teri
a(A
PI 61
0/8
Cla
use
2.2
.4)
on
req
ue
st
Sle
eve b
eari
ng
desi
gn
- F
or
hig
her
life
an
d
red
uce
d v
ibra
tio
ns
- B
eari
ng
ch
eck
ing
or
r
ep
lace
me
nt
wit
ho
ut
d
ism
an
tlin
g t
he d
river
Fla
ng
e r
ati
ng
sto
dis
charg
e p
ress
ure
on
req
uest
Fla
ng
e d
esi
gn
ed
to
meet
flan
ge lo
ad
ing
req
uir
em
en
tas
per
API 610
Op
tim
ised
bala
nci
ng
pis
ton
- D
esi
gn
ed
to
min
imis
e a
xia
l th
rust
lo
ad
ing
on
b
eari
ng
an
d f
or
lon
ger
life
Str
on
g B
eari
ng
s-
Th
e r
esi
du
al axia
l th
rust
is
ab
sorb
ed
- T
he p
um
p r
oto
r is
fix
ed
in
a
xia
l p
osi
tio
n b
y m
ean
s o
f an
tifr
icti
on
or
seg
men
tal
t
hru
st p
ad
beari
ng
s
CH
TR
Ensuring functional reliability
CHTR-pumps are designed in such a way that even upset process conditions cannot disturb their smooth operation. The forces and moments acting on the pump nozzles, due to temperature changes in the piping system, do not cause any problems. KSB pumps have built-in safety margins and good emergency running characteristics.
Fulfilling specific process requirements
Particular process requirements are usually well defined for each individual pump. The demands made on a process pump that keeps a process going by operating year after year round the clock are different from the requirements, for example, on a fuel pump running only periodically at short intervals.In the one process, liquid gases are circulated at extremely low temperatures, in the other, hydro-carbons with
0 0temperatures up to 400 C/752 F must be handled. Process pumps must cope with e.g. seawater or acids just as well as with abrasive quartz particles or cat-fines from crack plants.
Suction impeller minimizes site investments
In order to minimize the NPSH value of the pump it is possible beside the normal hydraulics - to provide single-suction or double-suction impellers.This reduces plant construction costs.
Process specific pump design
Resistant materials
A large variety of standard materials complying with national and international standards is available. For special service, e.g. corrosive media, KSB developed particularly resistant composite materials. CHTR-pumps may also be built of erosion-resistant steel. Because of KSB's extensive experience with different alloyed materials, KSB can solve any pumping problems in the best possible way.
KSB has it's own foundries working with the latest pattern making & casting methods.
Flow rate Q up to 400 l/s 3(1450 m/h)
Head * H up to 2500 m0Temperature t -60 to + 450 C
Pumpdischarge pressure
Speed n up to 7000 1/min3* with Q = 0 and = 1 kg/dm
pd up to 250 bar
ρ
Operating Data
For major applications in- Refinery
- Petrochemical Industries
- Water injection
- Steam generation
- Sea water
Selection chart
200
400
600
800
1000
1500
2000
2500
3000
4 6
Hm
8 10 15 20 40 60 80 100 150 200 300 400Q l/s
CHTR 2 CHTR 3 CHTR 4 CHTR 5 CHTR 6
/4
/5
/6
/7
/8
/9
/10
/11/12
/13/14
/15/16
/17/18
/3
/4
/5
/6
/7
/8
/9/10/11
/12/13/14/15/16
/3
/4
/5
/6
/7
/8
/9
/10
/11
/12
/3
/4
/5
/6
/7
/8
/9
/10
/3
/4
/5
/6
/7
60 Hz
4 6 8 10 15 20 40 60 80 100 150 200 300 400200
400
600
800
1000
1500Hm
2000
2500
Q l/s
CHTR 2 CHTR 3 CHTR 4 CHTR 5
/9
/10
/8
/7
/6
/5
/11
/12
/13/14/15/16/17/18
/4
/5
/6
/7
/8
/9
/10
/11/12
/13 /14
/15/16
/3
/4
/5
/6
/7
/8
/9/10
/11/12/13
/14/15
/16
/3
/4
/5
/6
/7
/8
/9
/10
/11/12/13
/3
/4
/5
/6
/7
/8
/9
/10
/11
CHTR 6
50 Hz
API 610/8 class S - 6 C - 6 A - 8 # D - 1 #
Major Components
Barrel / Stage Casings C - Steel Cr-Ni Steel AUS SS Duplex
Impellers / Diffusers Cr - Steel AUS SS Duplex
Impeller & stage casing
wear rings / bushings Cr - Steel AUS SS* Duplex*
Shaft Cr - Steel / Cr-Ni Steel AUS SS* Duplex*
Shaft sleeve (mech. seal) AUS SS* Duplex*
Materials CHTR
# On special request* With hard coating C - Steel Carbon steel
Cr Steel Chromium steelCr-Ni Steel Chromium Nickel steel
Notations :AUS SS Austainitic stainless steelDuplex Duplex stainless steel
