This slide cover instructions for installation of Vertical Turbine Pump - open and enclosed type bowl assemblies used in Ruhrpumpen Instructions for disassemble,
maintenance, and reassembly are given in section II. List of parts covering all models of
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This manual covers the basic guidelines and minimum requirements for
periodic inspection of heat exchangers used in petroleum refinery.
Locations to be inspected, inspection tools, frequency of inspection &
testing, locations prone to deterioration and causes, corrosion
mitigation, inspection and testing procedures have been specified in
the manual.
Documentation of observations & history of heat exchangers,
inspection checklist and recommended practices have also been
included.
Heat exchanging equipment is used for heating or cooling a fluid.
Individual heat transfer equipment is named as per its function.
Cooler
A cooler cools the process fluid, using water or air, with no change of
phase.
Chiller
A chiller uses a refrigerant to cool process fluid to a temperature below
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Condenser
A condenser condenses a vapour or mixture of vapours using water or
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Exchanger
An exchanger performs two functions in that it heats a cold process
fluid by recovering heat from a hot fluid, which it cools. None of the
transferred heat is lost.
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It talks about API 610 , HI1.6, ISO 9906. What standards to follow while specifying pump testing and tolerances.
This manual covers the basic guidelines and minimum requirements for
periodic inspection of heat exchangers used in petroleum refinery.
Locations to be inspected, inspection tools, frequency of inspection &
testing, locations prone to deterioration and causes, corrosion
mitigation, inspection and testing procedures have been specified in
the manual.
Documentation of observations & history of heat exchangers,
inspection checklist and recommended practices have also been
included.
Heat exchanging equipment is used for heating or cooling a fluid.
Individual heat transfer equipment is named as per its function.
Cooler
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phase.
Chiller
A chiller uses a refrigerant to cool process fluid to a temperature below
that obtainable with water.
Condenser
A condenser condenses a vapour or mixture of vapours using water or
air.
Exchanger
An exchanger performs two functions in that it heats a cold process
fluid by recovering heat from a hot fluid, which it cools. None of the
transferred heat is lost.
Centrifugal Pump Testing Standards - Presentation by ITTSahyog Shishodia
This presentation will give you all the details you need to know about Centrifugal Pumps Testing Standards.
It talks about API 610 , HI1.6, ISO 9906. What standards to follow while specifying pump testing and tolerances.
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A step-by-step procedure, adopted in troubleshooting the pump and/or
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Consistent and Systematic maintenance of pipes, pumps, and other
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A pump is a machine or mechanical equipment which is required to lift fluid from low level to high level or to flow fluid from a low-pressure area to the high-pressure area or as a booster in a piping network system.
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Instruction for installation guidelines vertical turbine pump
1.
2. 2 / 27
VERTICAL TURBINE PUMP
Type VTP
Ruhrpumpen, Inc. products are the result of more than a century of progressive study and
development. Advanced design, proper selection of materials, and precision construction
reflect this wide experience. Ruhrpumpen products will give trouble-free efficient operation
with minimum maintenance and repair.
This instruction book will familiarize management and operating personnel with pertinent
details and proper procedures for the installation, operation, and maintenance of one of these
products.
Designate below your identification of the equipment for which this book applies.
NOTE: BOWL SERIAL NUMBER IS STAMPED
ON DISCHARGE CASE FLANGE AS SHOWN IN FIGURE 2-1
STUDY THIS INSTRUCTION BOOK
The descriptions and instructions included in
this book cover the standard design of the
equipment and any common deviations when
possible. this book does not cover all design
details and variations nor does it provide for
every possible contingency which may be
encountered. When information cannot be
found in this book, contact the nearest
Ruhrpumpen office.
Do not operate this equipment in excess of
its rated speed, pressure and temperature,
nor otherwise than in accordance with the
instructions contained in this manual. This
equipment (or a prototype) has been shop
tested and found satisfactory for the
conditions for which it was sold, but its
operation in excess of these conditions will
3. 3 / 27
VERTICAL TURBINE PUMP
Type VTP
subject it to stresses and strains which it was
not designed to withstand.
Failure to heed this warning may result in a
accident causing personal injury.
SECTION l
INTRODUCTION AND
GENERAL DESCRIPTION
1-1. INTRODUCTION
1-2. This instruction book contains a
description of and instructions for open and
enclosed type bowl assemblies used in
Ruhrpumpen vertical turbine pumps and
manufactured by the vertical Pump Division of
the Ruhrpumpen. Instructions for disassembly,
maintenance, and reassembly are given in
section II. A list of parts covering all models of
the bowl assembly, and instructions for
ordering parts, are given in section III.
1-3. GENERAL DESCRIPTION
1-4 Ruhrpumpen vertical turbine pumps are
normally designed to operate in wells or
sumps. The bowl assembly (see figure 1-1)
consists primarily of a suction case or bell, one
or more pump bowls, and a discharge case.
The number of stages (bowls) employed is
determined by the head requirements of the
installation. The pump bowl assembly is
positioned in the sump or well at a depth to
provide the proper submergence. A pump
shaft, common to all moving parts in the bowl
assembly, provides mechanical linkage to the
pump driver unit.
1-5. two basic configurations of the bowl
assembly are the open type and the enclosed
type. Functional differences in the two types
are in the methods employed to lubricate the
line shaft. In the enclosed type , a tube is
placed over the line shaft and lubricants are
supplied to the bearings through the shaft
tube. In the open type, no lubricants are used
other than the fluid being pumped
1-6 SUCTION BELL
1-7. The suction bell serves as the input
port to the pump bowls. Internal guides or
vanes perform the dual function of directing
fluids into the eye of the first stage impeller
and supporting the housing for the suction
case bearing. A bell type suction is normally
employed, but in applications where it is
necessary to attach a suction column, a
flanged type of suction case may be used.
1-8 PUMP BOWLS.
1-9. Two types of pumps bowls, top and
intermediate, are available for the vertical
turbine pump. Operation of the bowls is
identical, with the exception that the top bowl
discharges fluids into the discharge case and
that the intermediate bowl or bowls discharge
fluids into the eye of the impeller of the next
stage. Each type of bowl contains an impeller
which is mechanically connected to the pump
shaft. Liquid flow in the impeller is both axial
and radial. the upper portions of the bowls
contain vanes which direct the fluids from the
impeller out of the bowl. The vanes also
support the housing for the bowl bearings,
intermediate bowls contain a bronze bearing
press fitted into the housing. Top bowls
contain a single bronze bearing which extends
up into the discharge case. Bearing materials
may be varied to suit specific application. A
multiple stage assembly contains a top bowl
and one or more intermediate bowls. A single
stage assembly contains only a top bowl.
1-10. IMPELLER
1-11. Impellers used in Ruhrpumpen turbine
pumps are of the enclosed centrifugal or
mixed flow type. Sealing of interstage leakage
is accomplished by insertion of wearing rings
to provide close radial fitting between the
bowl and impeller sealing surface. Impellers are
mechanically connected to the pump shaft by
impeller collets and lock nuts which press the
impeller tightly against the collets. Position of
the impeller on the shaft is determined by an
impeller lock pin. The lock pins are inserted at
the plant and the provide accurate positioning
of impellers on the pump shafts.
4. 4 / 27
VERTICAL TURBINE PUMP
Type VTP
1-12. DISCHARGE CASE
1-13. The discharge case receives the fluid
from the top bowl and directs it to the column
pipe, if one is used, or directly into the
discharge head. Vanes that guide the fluid also
act as a support for the pump shaft bearing.
When the discharge case is used with enclosed
shaft pumps, the tapped holes in the external
boss of the discharge case provide venting of
the pump discharge pressure, and permits
correct flow of lubricants down the enclosing
tube. When the discharge case is used with an
open type pump, threaded plugs are screwed
into the holes to prevent by-passing of liquids
through the vent ports.
FIGURE 1-1. VERTICAL TURBINE PUMP INSTALLATION
5. 5 / 27
VERTICAL TURBINE PUMP
Type VTP
SECTION II
PRE-INSTALATION
2-1. INSPECTION OF EQUIPMENT
2-2. Immediately on receipt of the equipment
inspect and check it against the shipping
manifest. Examine the create and wrapping
before discharging. Parts or accessories are
sometimes wrapped individually or fastened to
the crate. Report any damage or shortage to
the transportation company’s local agent.
2-3 STORAGE
2-4. When it is necessary to store a pump
for a short time before it can be installed,
place it in a dry location. Protect it thoroughly
from dust and moisture.
If a pump is schedule for storage for an extend
period of time, that section of the pump
above the bearing bracket should be
dismantled and all internal surfaces subject to
corrosion should be coated with a protective
fluid.
2-5 CLEANING PRIOR TO INSTALLATION
2-6. If a rust preventative has been used on
stored parts, they should be thoroughly
cleaned prior to putting the pump into service.
Kerosene or any coal tar distillate will generally
serve as a good solvent for most rust
preventative compounds. Extreme care must
be taken to assure that all traces of the
protective coating are removed unless
standard lubricating oil has been used for
protection.
SECTION III
INSTALATION
3-1 LOCATION OF EQUIPMENT
3-2. The pump should be placed so that it can
be easily removed for inspection and repair,
giving due attention to desirability of
simplifying the discharge piping layout. There
should be ample head room to allow the use of
an overhead crane of lifting device with
sufficient capacity lo lift the entire unit.
3-3 FOUNDATION
3-4. The foundation may consist of any
material that will afford permanent rigid
support to the full area of the pump or driver
supporting member an will absorb expected
strains and shocks that may be encountered in
service.
If the pump is to be mounted on a concrete
floor, foundation bolts of the specified size
should be located according to the elevation
drawing. Each bolt should be surrounded by a
pipe sleeve 2 to 3 times the diameter of the
bolt. The sleeve should be held rigidly yet
allowing the bolts to be removed..
3-5. When the pump unit is mounted
directly on a sump cover, it should be located
as near as possible to supporting beams or
building walls to prevent deflection and
vibration. The pump support and motor base
should be bolted and doweled to the sump
cover to retain proper alignment of piping.
3-6 EQUIPMENT NECESSARY FOR
INSTALLATION
3-7. The equipment necessary for the
equipment is the following:
A. Foundation bolts and nut when is
necessary.
B. Leveling pieces as wedges.
C. Adapted the derrick, tripod or common
crane with hoisting chain or similar accessory
that has hook and revolvable link.
6. 6 / 27
VERTICAL TURBINE PUMP
Type VTP
3-8 INSTALLATIONS
3-9. Before start the installation is
recommended to hire and electrician to
connect the motor after the instillation.
WARRING: You should take out the residuals
and loose materials of the well before installing
the pump. If is used a strainer, be carefully
during the transportation.
3-10 CLOSE LINE PUMPS
A. Cover the opening of the foundation with
wooden or any another material to protect the
well from objects that can fall in.
B. Place in the due position the hoist, with the
hook and the revolvable link centered on the
foundation opening.
C. If it will use a strainer and a suction tube,
install the strainer in the bottom end of the
suction tube. Then put a clamp to the suction
tube top end and lift until the tube is centered
on the foundation opening.
D. Take off the wooden that cover the
foundation and put the suction tube with the
strainer inside the well until the clamp rest
over the foundation.
NOTE: Before you continue the bowl assembly
installation, measure the shaft length to
compare it later when the impeller be
adjusted.
E. Put the tube clam on the top bowl assembly
and lift until it is over the suction tube.
Note: when bowl assembly of 6 or 8 inches is
installed keep the bowl firmly locked to the
same wood that was join when was shipped,
until de bowl assembly is vertically.
F. Down the bowl assembly and thread it in the
suction tube.
Warring: On the close shaft pump do not cover
the discharge case openings.
H. Down the bowl assembly until the clamp
rest over the foundation.
I. Take of the line plugs and pre-ensemble
close tube and take out the line 8 inches.
Note: If the line that will be used has a smaller
diameter than the shaft of the pump, the close
tube should be reduce and should use a pre-
ensambled assembly instead of the line and
the pre-ensambled close tube should be used
for the first section that is over the bowl
assembly.
J. Insert the line and the close tube or the
assembly in the column tube and let the line
extreme stood out 1 feet.
K. With a rope makes you two simple moorings
around the close tube and two simple
moorings around the column tube.
L. Put a clamp in the column tube just down of
the coupling.
Installation of the Bowl Assembly
7. 7 / 27
VERTICAL TURBINE PUMP
Type VTP
Installation of the Column Tube
M. Fasten the sling to the column tube clamp,
and lift until the bottom end of the tube is
centered on the bowl assembly.
N. Down slowly the column tube, the line and
the close tube until the line can fit en the
shaft line. Take out the thread protector.
O. Take out the line rope, putt oil on the line
threads and turn the line to the left to fit it on
the shaft line.
P. Take out the rope of the line close tube and
of the column tube. Turn the close tube to the
left to fit the discharge tube connector
bearing.
Q. Down the column tube and turn it to the
right to fit it with the bowl assembly.
R. Lift a little the column tube and the bowl
assembly and take out the bowl assembly
clamps.
S. Take out the column tube and the bowl
assembly until the column tube clamp rest
over the foundation.
T. Put the spacer on the column tube and
check that the dimensions of the top part of
the spacer to the top part of the line is 15½
inches.
U. Check that the dimension of the top part of
the close tube to the top part of the line is
9½ inches.
V. Putt oil inside de close tube during the
installation of each section to assure the
appropriate lubrication of the line bearings for
the initial mounting. See lubrication
instructions, section V.
W. Install a line bearing on the close tube
stood out . Use thread antihardening in all the
line bearing thread.
X. Put oil on the line thread and then install a
coupling on the line stood out, make sure that
the coupling is centered.
NOTE: Put the column tube retainer bearing
on intervals of 30 feet for axes of ¾ and 1
inches and on intervals of 50 feet for axes of
1¼ inches and up.
Y. Repeat operations from "I" to "W” until the
bowl assembly have gone down to the
appropriate depth of the well.
Z. If you are going to put the discharge under
the floor install on the discharge “T” on the
appropriate place.
Aa. Connect the pump top line to the line.
Ab. Connect the top line close tube to the line
close tube.
Ac. Invest the pump head, center the top
column flange packing on the bottom of the
head and assure with bolts the top column
tube on the bottom of the head.
8. 8 / 27
VERTICAL TURBINE PUMP
Type VTP
NOTE: During the assembly of the top
column flange tube to the bottom of the head,
check carefully that the packing is center and
that all the tube is aligned after assembly.
Ad. Fasten a sling to the head elevator hooks.
Ae. Ascend the head with the top column
tube, take out the thread protector and
descend them over the top line.
Af. Turn the top column tube and the head to
the right to thread the top column tube in the
column tube coupling.
Ag. Ascend a little the head and the column
tube and take out the tube clamp.
Ah. Turn the pump until the discharge head o
the “T” under floor be in front in the properly
direction to join the discharge tube and the
assembly holes with the foundation assembly
holes
Ai. Settle the pump over the foundation and
level it.
Aj. Take out the pump sling.
Ak. Insert a “O” ring in the groove that is
inside the split gland y descend the split gland
over the top line.
Al. Center the split gland over the close tube
of the top line and descend it carefully
permitting to the ring “O” and the split gland
to slide to the outside of the top line close
tube.
Am. Fasten with bolts the split gland to the
discharge head.
An. Slide the tube tension bearing or sees the
top line and turns it to the left, pressing it
manually. Then press one or one and a half
turn approximately for each 100 feet of pump
length to achieve the properly tension if the
close tube.
NOTE: On the pumps with close line water
lubrication should additional assembly packing,
split gland and its nuts.
Ao. Align the hole of the adjust screw of the
tension bearing with the thread hole closest to
the split gland top. Then insert the adjust
screw and tight.
Ap. Fasten with bolts the assembly support
and the oiler to the head side.
Aq. Connect the manual valve or solenoid, the
visual feeding valve of oil, and the accessories
to the oiler.
Ar. Connect the lubrication accessories to the
tension bearing.
3-10 OPEN LINE PUMPS
Cover the opening of the foundation with
wooden or any another material to protect the
well from objects that can fall in.
B. Place in the due position the hoist, with the
hook and the revolvable link centered on the
foundation opening.
C. If it will use a strainer and a suction tube,
install the strainer in the bottom end of the
suction tube. Then put a clamp to the suction
tube top end and lift until the tube is centered
on the foundation opening.
D. Take off the wooden that cover the
foundation and put the suction tube with the
strainer inside the well until the clamp rest
over the foundation.
NOTE: Before you continue the bowl assembly
installation, measure the shaft length to
compare it later when the impeller be
adjusted.
E. Put the tube clam on the top bowl assembly
and lift until it is over the suction tube.
NOTE: when bowl assembly of 6 or 8 inches is
installed keep the bowl firmly locked to the
same wood that was join when was shipped,
until de bowl assembly is vertically.
F. Down the bowl assembly and thread it in the
suction tube.
9. 9 / 27
VERTICAL TURBINE PUMP
Type VTP
G. Ascend the bowl assembly with the suction
tube and take out its clamp.
H. Descend the bowl assembly until the clamp
rest over the foundation.
I. Insert a line section inside a column tube
section, having care that the sleeve is on the
top extreme. Leave to the line stand out 1
feet on the bottom column tube.
J. With a rope make two simple moorings
around the close tube and two simple
moorings around the column tube.
K. Fasten a top column tube clamp and then
ascend the column with the line and center the
bowl assembly.
I. Descend the column tube with the line, take
out the thread protector and continue
descending until the line rest over the axe
pump coupling.
M. Take out the line rope, put oil on the
threads of the line.
N. Connect the line to the pump line, turning
th line to the left.
O. Tight the connection.
P. Descend the column tube over the coupling
of the bowl assembly and turn the column
tube to the right until be tightly coupled to
the bowl assembly.
Q. Ascend the bowl assembly and take out its
clamps.
R. Guide by hand the bowl assembly and the
column tube inside the well and descend it
until the discharge tube clamp rest over the
foundation.
S. Insert a bearing support over the line and
tight on the coupling of the column tube until
it stay firmly over the column tube, check that
the dimension to the top flange to the top line
stand out15½ inches.
T. Install a coupling in the top line stand out
taking care that the coupling is center.
U. Repeat the operations from “I” to “T” until
the bowl assembly have gone down to the
appropriate depth of the well.
V. If you are going to put the discharge under
the floor install the discharge “T” on the
appropriate place.
W. Connect the pump top line to the line.
Pump head Installation
X. Invest the head and center the packing of
the top column flange on the top of the head.
Then assure them with bolts.
NOTE: During the assembly of the top column
flange tube to the bottom of the head, check
carefully that the packing is center and that all
the tube is aligned after assembly.
10. 10 / 27
VERTICAL TURBINE PUMP
Type VTP
Y. Fasten a sling to the head elevator hooks.
Z. Ascend the head with the column tube
attached, take off the thread protector y
descend the top axe.
Aa. Turn the top column and the head to the
right to thread the top column tube on the
coupling of the column tube.
Ab. Ascend a little the head and the column
tube.
Ac. Take off the clamp of the tube.
Ad. Turn the pump until the discharge head or
the “T” under the floor be in front the properly
direction to join the discharge tube an the
assembly holes with the foundation assembly
holes.
Ae. Settle the pump over the foundation and
level it.
Af. Take off the pump sling.
Ag. Slide the split gland over the line and
assure with bolts the discharge head.
Ah. Install the packing on the split gland, settle
each ring of the split gland.
NOTE: When is used a retainer cage, install
tree packing rings, followed by the retainer
cage and 2 packing rings.
Ai. Install the split gland and tight only with
the hand the nuts of the split gland bolts.
Aj. Install the water deflector.
3-12 HOLLOWSHAFT DRIVERS
A. Take out the driver clutch.
B. Fasten a sling to the driver.
C. Ascend the driver and center it on the top
shaft.
D. Descend slowly the driver over the head of
the pump taking care that the assembly holes
and head are aligned.
E. Take out the sling of the pump and the
elevator.
F. Fasten with bolts the driver to the head and
fasten with bolts the head to the foundation.
G. Connect the discharge pipeline, taking care
of align the pipeline with the discharge. The
pipeline support should be independent.
H. Check that the top shaft is on the center of
the hollowshaft driver. If is necessary center
de top shaft and should have the security that
the driver is rotating in the property direction,
putting in operation the driver just for a
second.
I. Install the adjusting nut on the top shaft and
tight until the adjusting nut rest on the clutch
and the pump rotate without problems.
NOTE: The pump shaft goes lengthening by
the hydraulic push of the pump. It is necessary
to ascend the impellers to compensate the
lengthening.
K. Ascend the impellers the same quantity of
the lengthening tightening the adjust nut.
L. Tight the adjust nut one o twice turns.
M. If the total adjustment is larger than the
longitudinal game wrote the paragraph 3-10 o
3-11, go back the nut until the total
adjustment is slightly smaller than the
longitudinal game.
3-13. PROPULSION IN RIGHT ANGLE FOR
THE HOLLOWSHAFT
A. Take out the clutch of the propulsion in
right angle.
B. Fasten a sling to the propulsion in right
angle.
11. 11 / 27
VERTICAL TURBINE PUMP
Type VTP
C. Ascend the propulsion in right angle and
center it over the head.
D. Descend slowly the propulsion in right
angle over the head, taking care that the
assembly holes of the two units are aligned
and the coupling of the propulsion in right
angle is turned to de driver.
E. Take out the propulsion and the elevator
equipment.
F. Fasten the propulsion bolts to the head and
the head bolt to the foundation.
G. Connect the discharge pipeline to the pump,
taking care to align it. The pipeline support
should be independent of the pump.
H. Check that the top shaft is in the center of
the hollowshaft of the propulsion right angle. If
is necessary center the top shaft.
I. Install the clutch on the top shaft with a
cotter and assure the clutch of the
hollowshaft of the propulsion right angle.
J. Repeat the operation form “J” to “M” of the
paragraph.
3-14 GROUT
3-15.The grout avoids the lateral displacement
of the discharge but it doesn't correct the
irregularities of the foundation. To grout the
pump follow the next steps:
A. Build a wooden form around the discharge
head to contain the grout.
B. Mix the grout using a part of cement and
two parts of construction sand and enough
water to make pasta.
C. Wet the foundation very well with water and
toss the grout in the wooden form, making
sure that the mixture flows freely under the
discharge head.
D. With a rigid wire revolve the grout to make
the air, that can have, come out.
E. Cover the surface of the grout with wet
sackcloth so that it can drying off slowly.
After the grout has forged for 48 hours,
remove the wooden form and plane the
surface. Let the grout forged 72 hours before
operate the pump.
12. 12 / 27
VERTICAL TURBINE PUMP
Type VTP
Pump Push Factors
Adjust Nut Installation
Installing the Driver on the Hollowshaft
13. 13 / 27
VERTICAL TURBINE PUMP
Type VTP
Centering the Line
Calculate the hydraulic push multiplying the total high per the pump push factor.
The shaft lengthening taken of the graphic should not exceed impeller shaft longitudinal game that
is shown on the operational curve.
Placement depth – Feet (meters in
parenthesis)
14. 14 / 27
VERTICAL TURBINE PUMP
Type VTP
SECCION IV
FUNCIONAMIENTO
4-1. PREVIOUS TO STARTING
RECOMMENDATIONS
4.2 Previous to starting recommendations,
check the following thinks:
A. The discharge valve is partially open and
the discharge pipeline is property connected.
B. The impellers have been adjusted properly
during the installation and the motor line and
the pump turn without inconvenient.
C. All the bolts are tight.
4-3. STARTING
4-4. Start up the pump like it follows:
A. Pre-lubricate the line in the pump of open
line injecting water per the opening injection
of the discharge head. Inject water for a
minimum of three minutes in the pump whose
shaft longitude is bigger than 40 feet.
Continue the injection for one minute for each
100 additional feet of longitude of the shaft.
B. Close the outburst switch.
C. Observe if the pump begins to work easily
and if it works without excessive vibration. If
there is a difficulty to begin or an excessive
vibration, stop the bomb immediately and
consult the section V to determine the
probable cause.
D. Open the discharge valve slowly until the
discharge pressure arrives to the wanted
degree.
E. In the open line pumps, tight the nuts of the
split gland gradually during a lingering period.
(See you the paragraph 5-8).
4-5. FINAL ADJUSTMENT
4-6. After the pump start to worked for a
while enough to press the line coupling and to
clean the liquid pumped of abrasive materials
that can have, the position of the impellers
should be checked and to readjust them for a
turn of the adjust nut in the motors of
hollowshaft.
4-7. STOPPING UNIT
4-8. Close the discharge valve slowly and then
stop the motor. With this pulsations are
avoided in the system and that the liquid is
returned through the pump.
SECTION V
CONSERVATION
5-1. PREVENTIVE CONSERVATION
5-2. INSPECTION
5-3. the pumps with hidden shaft are built to
lend service without inconveniences for a long
time and to only need a minimum attention.
Periodically inspect the oiler to see if it is
working appropriately and if it has enough oil,
as well as the split gland to see if it has the
appropriate escape, and the pumps to see if
there are slack fasteners, excessive vibration,
dirt and corrosion.
5-4. CLEANING
5.5. Remove the rust or corrosion with a
brush of fine wire and cloths. Clean all the
pieces, if is necessary, except the electric
contacts, wetting the cloths or the brush with
an appropriate solvent.
5-6. PUMPS WITH OVERDRAFT SHAFT
5-7. The pumps with overdraft shaft are
equipped with split gland that do not need
15. 15 / 27
VERTICAL TURBINE PUMP
Type VTP
attention, however it need an occasional
approve of the scape.
5-8. Don't press the case of the split gland as
much as to impede all escape. The packing
should have a slight escape for the lubrication
or the shaft will be lined or it will suffer
excessive waste if was impeded that escape
completely. The best rule is to loosen the case
so that it can be given turns to the nut with
the fingers and to let the split fland to have
an abundant escape during an initial period of
setting in march or after the packing of the
split gland has been changed. Tight then the
nut of the case gradually letting that the
packing settles, until
the escape is reduced to between 40 and 60
drops per minute.
5-9.The modeled rings that can be requested
as reserve packing, give the best results to
renovate the packing. Nevertheless, it can be
formed the material rings in rolls, if it is
necessary. In that case the pieces will be cut
individually and will be adjusted carefully with
juncture to bevel to avoid the deformation of
the pieces. Put each new ring inside the split
gland and set individually with the case. Make
sure that the junctures are not aligned. The
best thing is to stagger them to 180 degrees
as they go settling the new rings in the split
gland.
5-10. CLOSE SHAFT PUMP
5-11. This kind of shaft are provided with a oil
lubricant tank, that should be filled
periodically. Fill the tank like is recommended
in the next paragraph.
5-12. LUBRICATION
5-13. OPEN SHAFT PUMP
This kind of pump depend mainly on the liquid
that is pumped for the lubrication of the
bearings, intermediate and superior bowls, the
bearing of the discharge case and the bearings
of the shaft. Conserve the grease cup of the
split gland full with good quality grease. The
bearing of the suction case is packed with
grease in the factory and it doesn't need
lubrication until it is dismantled to inspect it or
to repair it. After the disassembly, repack the
suction box bearing with grease of medium
viscosity to the temperature of the liquid
pumped (approximately 500SSU to 100
degrees). Is convenient an oxidation inhibitor
and usually have it the most of the good
quality grease.
5-14. CLOSE SHAFT PUMP
These pumps have the bearings of the
discharge case and shaft lubricated with oil.
The lubricant for those bearings is contained in
the oil tank and it is fed to the bearing of
tension tube. Maintain the oil tank full with a
thin oil of turbine of good quality, of around
150 SSU to the temperature of the liquid that
is pumped. A less thicken oil maybe doesn't
flow appropriately through the bearings.
Adjust the oiler so that it feeds from 4 to 6
drops per minute (twice that quantity for
pumps larger than 200 feet, inside the shaft
tube. As in the pumps open pumps, the
bearings of the bowls are lubricated for the
liquid that is pumped. The bearing of the
suction case is greased and sealed in the
factory and you only have to repack after
disassembling to inspect it or to repair it.
After disassembling it repack that bearing like
is recommended for the open shaft pumps.
5-15. CONSERVATION CORRECTIVE
5-16. INCONVENIENCES AND THEIR
POSSIBLE CAUSES
5-17. THE PUMP DO NOT START UP
The possible causes are:
A. The voltage given to the driver is very low.
B. The electric circuit is open.
C. The motor is faulty.
D. The pump is forced inside a bent hole or
against an obstruction in the hole or drain.
E. The impellers are begun against the bowl
because the bearing has a faulty adjustment
or is wear.
16. 16 / 27
VERTICAL TURBINE PUMP
Type VTP
5-18. THE PUMP DOESN’T DISCHARGE
LIQUID.
The possible causes are:
A. Low velocity because the voltage or the
shaft frequency is low.
B. Incorrect direction of the rotation.
C. The total height of pumping can be bigger
than the height for the one that the pump is
built.
D. The strainer is obstructed or has strange
matters blocking the liquid.
E. The lowest impeller is not always
submerged.
F. The shaft is broken.
5-19. INSUFFICIENT CAPACITY.
The capacity cannot be enough for the next
causes:
A. Little speed of the pump for reasons of low
voltage to low frequency in the line.
B. The total height of pumping can be bigger
than the height for the one the bomb is built
C. The liquid pipes or the strainer can be
partially obstructed.
D. The impeller is slack.
E. To the suction head is entering air or vapor.
F. The level of the liquid in the well or drain is
too low.
5-20. THE PUMP LOSS THE PRIMING
AFTER START.
The pump can lose its priming after starting up
if the level of the liquid descends under the
pump. This can happen when the quantity of
the liquid pumped it is smaller than the
capacity of the pump.
5-21. THE PUMP OVERLOADS TO THE
DRIVER.
The cause that the pump can overload to the
driver are:
A. Operation in a point of the curve different
to the design.
B. The liquid pumped is not of the specific
gravity for which the pump was built.
C. The line voltage is very low or the driver is
faulty.
D. The impellers touch up or below.
5-22. THE PUMP VIBRATES.
The vibration of the bomb can be caused for:
A. Worn bearings.
B. The shaft is out of line or bent.
C. The assembly bolts are slack or the
foundation is not rigid
D. The impeller causes an imbalance to be
corrode or partially obstructed.
E. To the bowl body is entering air or vapor.
F. Effort due to misalignment of the pipe.
G. The well is bent or there are an obstruction
that causes an obstacle effect.
5-23 WEAR EXCESSIVE.
The cause of the excessive waste can be:
A. Sand or another abrasive material in the
liquid pumped.
B. The well is bent or there are an obstruction
that causes an obstacle effect.
C. Vibration, if is not remedied immediately.
5-24. CORROSION.
The corrosion can be caused by sludge in the
water or for the liquid class that is pumped. It
can decrease the corrosion to the minimum
using pieces of stainless steel, brass or metal
model.
17. 17 / 27
VERTICAL TURBINE PUMP
Type VTP
5-25. REPAIRS
5-26. CLOSE SHAFT PUMP
The repairs of the close shaft pump consists
on take out the pump and to dismantle it to
replace the faulty pieces. A elevator is needed,
like the described in the installation, to take
out the pump of the well. Take out the bomb
and disarmament as follows:
A. Disconnect the electrical force and the
electric drivers that go to the motor, putting
labels. This should be made by a competent
electrician.
Disconnect the electric force of the motor and
also the electric conductive that go to the
motor, putting labels. This should be made by
a competent electrician.
B. Remove the covered with the top part of
the motor and remove the screw of the adjust
nut (2) and the adjust nut (1) of the top end
the top shaft.
C. Take out the driver clutch.
D. Take out the bolts (457) that assure the
driver to the discharge head.
E. Fasten a sling to the elevator holes of the
driver and ascend the driver vertically until the
top shaft gets free.
F. Descend the motor on an appropriate
support that has gotten ready.
NOTE: Have the security to have a clean and
sufficiently wide space to go placing the
pieces in the same order in that you leave
taking out.
G. Disconnect the oil pipe of the tension nut of
the shaft tube.
NOTE: In the close shaft pumps water
lubrication should be taken out the packing
and the additional packing cases before taking
out the tension nut of the pipeline.
H. Remove the adjustment screw that holds
the tension nut of the pipeline giving turns to
the right
I. Take out the split gland removing the bolts
that assure it (458)
J. Disconnect the discharge pipeline of the
pump
K. Remove the bolts that assure the pump to
the foundation.
L. Fasten a sling to the hooks elevators of the
pump until the column tube overdraft.
M. Place the clamp to the column pipe band in
the column tube under the first coupling and
descend the pump until the clamp rests on the
foundation.
N. Disconnect the top column tube of the
column tube coupling giving turns to the left.
O. Ascend the pump and the top column tube
and take off the top shaft and the top close
tube.
P. Ascend the column tube until the next
coupling is overdraft (24).
Q. Place a clamp in the column tube over the
coupling and descend the column tube until
the clamp rest on the foundation.
R. Disconnect the column tube on the coupling
and ascend the column tube to leave overdraft
the conjunction of the close tube.
S. Assure with a rope the close tube to the
column tube.
T. Disconnect the close tube on the coupling
and ascend the column tube with the close
tube until overdraft the coupling of the shaft
(23).
U. Assure with a rope the shaft to the close
tube and the column tube.
V. Disconnect the shaft.
18. 18 / 27
VERTICAL TURBINE PUMP
Type VTP
W. Descend the column tube, the close tube
and the shaft until placing them on an
appropriate support.
X. Disassembly the individual sections of the
shaft and of the close tube.
Y. Disconnect the other sections of the
column tube, of the close tube and the shaft,
repeating the operations from " K " until " S "
until arriving to the bowls assembly.
Z. Ascend bowl assembly until overdraft the
suction tube, if this is installed.
Aa. Place a clamp in the suction tube and
descend the bowl assembly until the clamp
rests on the foundation.
Ab. Disconnect the bowl assembly and place it
in and horizontal position to dismantle it.
Ac. Ascend the suction tube taking it out of
the well and descend it until place on an
appropriate support.
5-27. Clean all the pieces minutely with an
appropriate solvent, put on the shaft oil lightly
with a thin turbine oil and arm the pump in
inverse order of disassembly like it is described
in the operation "Y" of the paragraph 5-26.
Reinstall the pump like it is described in the
section III.
5-28. OPEN SHAFT PUMP
The repair for these pumps is similar to the
repair of the close shaft pumps. Take out and
disassembly the bomb like it continues:
A. Take out the driver like it is described in the
operations from "A" to "F" of the paragraph
5-26.
B. Disconnect the discharge pipe.
C. Remove the water deflector (6)
D. Take out the split gland (9) removing the
nuts (8) of this split and lifting it.
E. Take out the split gland (17W) removing
the bolts that assure it.
F. Take out and discard the packing (15W) of
the split gland.
G. Remove the bolts that assure the pump to
the foundation.
H. Fasten a sling to the elevator hooks of the
pump and ascend the pump vertically until it
overdraft the column tube.
I. Place a clamp in the column tube under the
first coupling and descend the pump until the
clamp rests on the foundation.
J. Disconnect the top column tube of their
coupling giving him turns to the left.
K. Ascend the head and the top column tube
until taking them out of the top shaft (19).
L. Disconnect the top shaft (19) of the shaft
(23) in the coupling, holding the coupling and
giving turns to the shaft to the right. The
threads are to the left.
M. Ascend the column tube until it overdraft
the following coupling.
N. Place a clamp in the column tube under the
coupling and descend the column tube until
the clamp rests on the foundation.
O. Disconnect the shaft of the coupling,
holding the coupling and giving turns to the
shaft to the right.
P. Ascend the column tube with the shaft and
then descend until placing it on an appropriate
support.
Q. Repeat operations from " R " to " P " until
arrive to the bowl assembly.
R. Ascend the bowl assembly until it overdraft
the suction tube, if is installed.
S. Place a clamp in the suction tube and
descend the group until the clamp rests on the
foundation.
19. 19 / 27
VERTICAL TURBINE PUMP
Type VTP
T. Disconnect the bowl assembly of the
suction tube and place in horizontal position to
dismantle it.
U. Ascend the suction tube taking it out of the
well and descend until placing it on an
appropriate support.
5-29. Clean all the pieces minutely with an
appropriate solvent, put on the shaft oil lightly
with a thin turbine oil and arm the pump in
inverse order of disassembly like it is described
in the operation "Y" of the paragraph 5-26.
Reinstall the pump like it is described in the
section III.
SECCION VI
LIST OF PARTS
6-1. GENERAL
6-2. The requirement for stock of spare
parts will vary with the severity of conditions
of service, the extend of field maintenance
anticipated, and the number of units installed.
A minimum of one spare of each moving part
should be stocked, as well as a complete set
of bearing and seals.
6-3 ORDERING PARTS
6-4. When ordering spare and replacement
parts the pump serial number, size and type of
pumps must be given. Refer to the nameplate.
This information is essential in order that
Ruhrpumpen may identify the pump and
furnish the correct repair parts. Give the name
and number of the part as listed in the parts
list of the sectional drawing applicable to the
pump, the quantity required and where
possible, the complete symbols stamped on
the old part. Orders for replacement parts
should be sent to the nearest Ruhrpumpen
office.