Blackmer pump manuals and parts lists may be obtained
from the Blackmer website (www.blackmer.com) or by
contacting Blackmer Customer Service.
........................ 49
Pump Description
Fill this in for your record purposes: It will be critical to have this information for the accurate identification of spare parts
which may be required later.
Pump Size:
Serial Number: Model:
Impeller Diameter: Date Received:
Flow: RPM:
Application: Head:
Mechanical Seal Type: Material of Construction*:
Mechanical Seal Material:
Surface Temerature:
Markings:
*Nameplate includes material information for shaft (left)
and wet end (right) in that order.
Year of Construction:
1301-C00 page 2/56
Page 4
MAINTENANCE SAFETY DATA
p
NOTICE:
. Hazardous or
toxic fluids can
cause serious
injury.
Hazardous pressure
can cause personal
injury or property
damage
Do not use the pump for any other
purpose than the liquid transfer
application for which it is originally
supplied.
If pumping hazardous or toxic fluids,
system must be flushed prior to
performing service.
Fluid must be handled and disposed of
in accordance with local and national
regulations.
Contaminated parts must be cleaned
properly following local and national
regulations.
Pump must be isolated by closing
suction and discharge valves before
working on the pump.
Personal protective equipment must be
worn if there is a potential for handling
hazardous or toxic materials.
Failure to relieve system pressure prior
to performing pump service or
maintenance can cause personal injury
or property damage.
Only use quality fasteners of proper size
and material for application. If in doubt
use only OEM supplied fasteners.
Do not draw piping flanges to pump by
force as this may cause dangerous
strains within the pump case and
misalignment between the pump and
driver.
Do not adjust or disassemble any
pressure containing component or shaft
seal prior to depressurizing the primary
and auxiliary fluid systems. This will
ensure that no hazardous or high
pressure fluid is ejected that may cause
personal injury or equipment damage.
Lock out power to the driver before
working on the pump. Failure to
properly lock out motor could result in
accidental start, causing personal
injury.
Hazardous
machinery can
cause serious
ersonal injury.
Wear proper safety equipment including
gloves, glasses, respirators and shoes
when working on the pump.
Do not touch the pump for any reason
while it is operating. Lockout or
uncouple the driver prior to personal
contact with the pump.
When handling the pump or any pump
components, take care to prevent
personal injury on any possible sharp or
odd-shaped surfaces.
Be extremely careful to avoid the
rotating components in the seal
chamber area. Make all adjustments
with the pump shut down and locked
out.
Do not apply heat to any component for
removal or disassembly. Use of heat
may cause an explosion due to trapped
Explosive fluids will
cause severe
personal injury
death or major
property damage.
fluid within the pump.
Always use a lifting device capable of
supporting the full weight of the pump
Heavy assemblies
can cause personal
injury or porperty
damage.
components or assemblies.
Failure to disconnect and lockout
electrical power before attempting
maintenance can cause shock, burns or
death.
Hazardous voltage.
Can shock, burn or
cause death.
1301-C00 page 3/56
Page 5
p
OPERATIONAL SAFETY DATA
Do not operate the pump at higher than
rated pressures or for any application
other than that which it was designed
for.
Never operate below the minimum rated
Hazardous pressure
can cause personal
injury or property
damage
flow or with suction or discharge valves
closed.
Do not adjust or disassemble any
pressure containing component or shaft
seal prior to depressurizing the primary
and auxiliary fluid systems. This will
ensure that no hazardous or high
pressure fluid is ejected that may cause
personal injury or equipment damage.
Do not operate the pump without
ensuring suction is primed with fluid.
Do not operate the pump dry.
Never operate the pump without liquid
supplied to the mechanical seal.
Hazardous fluids can
cause fire, serious
personal injury or
property damage.
Running the mechanical seal dry, even
for short periods, can cause seal
damage and/or failure resulting in fluid
release. Physical injury can occur if
mechanical seal fails.
Do not touch the pump while it is
un-isolated from hot or cold fluids,
otherwise personal injury may result.
Extreme heat from any source is
prohibited when operating in a
Extreme heat can
cause injury or
property damage.
potentially explosive atmosphere.
Insulate any surfaces that exceed 176° F
(80°C) to prevent personal injury from
unintentional contact with hot surfaces.
1.0 INTRODUCTION
1.1 Receiving Shipment
Immediately upon receipt of shipment, check the items
received against those shown on the packing list. Check the
bottom of the box for additional parts. Special attention should
be given to all specific instruction tags that may be attached to
the pump.
1.2 Storage
On completion of receiving and inspection, action must be
taken to protect the equipment if it is not to be installed
immediately. The unit should be kept dry and in its container
until ready to install on its foundation. Please request the
“Long Term Storage Specification” from the factory if the pump
will not be used within several months or if it will be stored
outdoors.
1.3 Handling
Pumps and components are heavy.
Failure to properly lift and support
equipment could result in serious injury
Heavy assemblies
can cause personal
injury or porperty
damage.
A bare pump can be hoisted by the lifting eyebolt provided in
the bearing frame. A pump on a baseplate can be hoisted by
using a sling under the casing suction flange and under the
motor end of the baseplate. If the base also contains a motor,
lifting should be accomplished by placing slings under the
motor and under the casing suction flange.
Do not lift the Pump, Motor, or Base Assembly by the use
of the Eyebolts provided in the Pump and Motor.
and damage to equipment.
If operating in a potentially explosive
atmosphere, extreme care must be
taken to prohibit open flames and to
prevent heat generation, sparking or
electrostatic discharge that may cause
Explosive
atmosphere can
cause serious
ersonal injury.
ignition of the atmosphere.
Select and apply the appropriate driver
for use in a potentially explosive
atmosphere.
Ground all equipment to prevent an
electrostatic discharge which could
ignite a potentially explosive
atmosphere.
1301-C00 page 4/56
Page 6
2.0 INSTALLATION
2.1 Motor specifications and requirements
Check that the motor power rating does not exceed
the maximum power limitations of the pump as shown in the
table below
NOTE: The specific gravity of the pump fluid must be
considered when calculating HP (KW).
Proper “Footprint”
Proper Mass
Mass of foundation must be at least three (3) times mass of
pump and motor.
2.2 Foundation
The foundation is one of the most influential factors where
overall reliability of the pump unit is concerned. The foundation
must maintain alignment under all normal and abnormal
conditions. The foundation must minimize vibration by being as
heavy as possible and non-resonant. A generous factor of
safety should be used when determining foundation thickness.
The foundation length and width should extend at least 6 in.
(152 mm) beyond the anchor bolts.
Certified pump elevation drawings can be furnished that
include dimensions for locating anchor bolts, and general
information needed for determining foundation size and
thickness.
Anchor bolts must be positioned accurately and provided with
sleeves. The sleeve bore diameter should be approximately
twice the bolt diameter, but should provide not less than .5 in.
(13 mm) clearance all around the bolt.
Pumps must be installed on an adequate foundation.
Typical Anchor Bolt Installation
1301-C00 page 5/56
Page 7
2.3 Leveling
Sufficient parallel machined bearing plates or chock blocks
should be placed beneath the base along the sides and ends,
to distribute the load evenly. It is essential that they are leveled
before the base is placed in position. Obtain an accurate
condition of level lengthwise and crosswise.
2.4 Grouting
The anchor bolts are used for hold down only. The grouting
resists side thrust, end thrust and compensates for the
irregularities between the foundation and the base, thus
preventing the pump unit from shifting.
Use only a “high strength”, “non-shrinking”, “non-expanding”,
grouting mixture.
Allow the grouting to set before tightening the anchor bolts.
After tightening, check the coupling alignment to make sure it
has not changed. Realign as required per the instructions in
section 2.5.
NOTICE:
Do not connect piping to the pump until the grouting is
sufficiently cured.
2.5 Coupling Alignment
Be sure to lock-out electrical power to
the driver before performing alignment.
Failure to lock-out power could result in
Hazardous
machinery can
cause serious
personal injury.
serious injury.
NOTICE:
Check the driver direction of rotation BEFORE coupling it
to the pump. The direction of pump rotation is indicated
on the front surface of the casing. Improper direction of
rotation will damage the pump.
Good service life of the pump and driver depends upon good
alignment through the flexible coupling. If the electric motor
was mounted at the factory, the pump and motor were in
alignment when shipped.
Coupling Information:
Pump and motor coupling should be the flexible type.
Select a spacer coupling for pumps that do not use a motor
adapter.
Shaft gaps are as follows for non C frame pumps:
Frame SD: 3.9 in. (100 mm)
Frame S and Frame A: 3.5 in. (89 mm)
Frame M: 5.0 – 7.0 in. (127 – 178 mm)
Select a non-spacer or semi-spacer type for use with a motor
adapter, depending on shaft gap.
If a motor adapter is used, check to see if the selected
coupling will fit inside the adapter.
There should be at least 0.12 in. (3 mm) gap between the
pump and motor shafts on pumps with motor adapters.
When aligning the shafts, the coupling should be
disconnected and the coupling halves brought into
alignment.
Alignment Checks:
Cold alignment should be checked before and after
baseplate is grouted.
Piping should be connected to the pump prior to cold
alignment after the baseplate is grouted.
Final or hot alignment is to be done after the pump and
driver have operated for a sufficient length of time to attain
operating temperature.
Periodic checks of alignment should be made to ensure
smooth, continuous operation.
Any changes to process conditions warrant an alignment
check.
Once alignment is completed, the
coupling guard must be installed to
prevent injury. Never operate pump
without coupling guard properly
Do not operate
without guard
in place
installed.
NOTICE:
The alignment between the driver and pump should be
inspected after installation to ensure that transportation
or other handling has not caused misalignment of the
unit.
Alignment must not be attempted until the base is in position
and the mounting and flange bolts have been tightened.
Alignment should be performed after the pump and driver are
at operating temperature.
Alignment Method:
There are numerous devices and methods for accomplishing
proper coupling alignment. Specific alignment method is the
customer’s choice. If information is required for the double dial
indicator method, the Blackmer factory can provide details.
Also, information is available in the Hydraulic Institute
Standards. Both angular and parallel misalignments must be
corrected.
Alignment Criteria:
The unit is in complete alignment when offset and angular
Total Indicated Runout (TIR) measure less than .005 in. (.13
mm). Offset alignment is measured on the rim of the coupling
and angular alignment is measured on the face of the
coupling. If either reading exceeds these values, corrections
must be made.
1301-C00 page 6/56
Page 8
2.6 Piping
Never draw piping to the pump flanges
by force.
This may cause dangerous strains
within the pump case and misalignment
between the pump and driver.
Hazardous pressure
can cause personal
injury or property
damage
The result could be serious injury and
damage to the equipment.
Proper piping details are provided by the Hydraulics Institute
Standards.
Piping Strain
The suction and discharge pipe flanges must be aligned
concentric and parallel to the pump flanges. The piping must
be supported independently near the pump, and all flanges
must match so that no strain will be transmitted to the pump
after the nuts and bolts have been securely fastened. When
tightening the nuts and bolts, always tighten bolts 180°
opposite from each other in an alternating pattern to achieve
even gasket compression.
The piping system should be designed with sufficient inherent
flexibility to withstand thermal expansion without creating
excessive forces at the flanges. The piping must also be
arranged and supported so that no excessive stress can be
transmitted to the pump, either due to the weight of the pipe
and fluid, or to its expansion and contraction.
NOTICE:
Do not draw the piping into the pump by force as this will
cause strain on the pump resulting in reduced seal and
bearing life.
Excessive strain on a pump may be the result of:
1. Thermal expansion and contraction of the piping. This
indicates improper piping design. Expansion joints or
loops may have to be installed.
2. Improper pipe support. Frequent problems arise from
indiscriminate use of rod hangers (instead of spring
hangers), anchors or restraints used during the pipe
installation.
3. Misalignment of the pipe flanges to the pump suction and
discharge flanges.
Suction Piping
NPSH:
The pump must have enough positive suction head to prevent
cavitation. The NPSH available (NPSHa) must always be
greater than the NPSH required (NPSHr). Refer to the pump
performance curve for NPSHr information.
For submerged suction, the inlet must be located deep enough
to prevent vortexing. If necessary, provide vortex breakers in
the suction vessel to prevent vortex formation.
The suction piping must be free of air pockets. Use an
eccentric reducer if joining suction piping of different sizes to
reduce the chance of an air pocket forming at the junction.
Reference recommended configuration below.
NOTICE:
Never control the pump flow by throttling a valve in the
suction line. The function of the suction valve is to isolate
the pump from the system during maintenance.
It is recommended to have a straight length of suction piping,
equal to at least 5 to 10 times the diameter of the pipe, directly
in front of the pump suction flange. Never place an elbow
directly in front of the suction flange.
Elbows in suction piping should be of the long radius type.
Separate suction lines are recommended when more than one
pump is operating from the same source of supply.
Suction strainers must have a total free area of at least 3x the
suction pipe area.
Preferred piping configuration – at least 5-10 diameters of
straight pipe between the source and the pump suction.
Rules of Thumb:
Generally the suction piping is no more than one size larger
than the pump nozzle. Suction lines should never be smaller
than the pump suction nozzle.
To prevent cavitation in the pump, suction line velocities
should not exceed 10ft./sec (3 m/sec).
Typical fluid velocity guidelines are 4 to 6 ft./sec (1 to 2
m/sec) for suction and 6 to 10 ft./sec (2 to 3 m/sec) for
discharge.
The pressure drop across permanent suction strainers must
be considered when determining suction pressure at pump
inlet.
Install valve stems and tee branches perpendicular to, not
parallel to, the pipe centerline.
Elevated source preferred piping - to be in one plane, again
with at least 5-10 diameters of straight pipe between the elbow
and the pump suction.
1301-C00 page 7/56
Page 9
If the elbow bolts directly to the pump’s suction, problems may
occur. The liquid tends to follow the longer radius creating a
void or even reverse flow along the shorter radius, thus
starving part of the impeller.
Piping Installation
Rules of Thumb:
Piping runs should be as short as possible to minimize
friction losses.
Concentricity of the flanges should be such that the bolts can
be inserted into the flange holes with finger pressure only.
No spud wrenches or come-a-longs are to be used to align
the flange holes.
Piping should be anchored, restrained and supported
independent of pump, near the suction and discharge to
prevent excessive nozzle loads.
Parallelism of the flange gasket surfaces are to be limited to
0.002 in/in (0.05 mm/mm) of normal pipe size, with a
maximum of 0.03 in (0.76 mm).
Example 4 in (100 mm) pipe:
4 x 0.002 in. = 0.008 in. max. (100 x 0.002 mm = 0.2 mm max)
Pipe sizes under 3.0 in (80 mm) are flexible enough to allow
a 0.008 in (0.2 mm) maximum out-of-parallelism without
causing shaft alignment problems.
The last 20 ft (6 m) of piping to the pump suction and
discharge flanges should be connected and tightened only
after the pump is grouted and aligned.
Dial indicators should be installed from the driver to the
pump to monitor movement when the piping is bolted up.
The maximum acceptable movement is 0.002 in (0.05mm).
Tighten flange bolt to 2/3 torque valve using crisscross
pattern for first pass then to final bolt torque in a circular
pattern.
Avoid situations where there are many elbows in many planes.
Reducers
Rules of Thumb:
Typically suction piping is no more than one diameter larger
than pump suction nozzle.
Orientation:
Suction above centerline: Eccentric – Flat side on bottom, or
concentric.
Suction below centerline: Eccentric – Flat side on top,
concentric not recommended.
Discharge Piping
A check valve and an isolation valve must be installed in the
discharge line. Locate the check valve between the isolation
valve and the pump.
The check valve protects the pump from running backwards
when it is shut down. The isolation valve is used when starting
the pump to prevent the pump from running out on the pump
curve by throttling while the system is being filled. The isolation
valve also isolates the system when the pump is removed for
maintenance.
Reducers should be located between the check valve and the
pump to prevent excessive flow restriction that may be caused
by an undersized valve.
If prolonged periods of near shutoff operation are experienced
due to system demand, it may be necessary to install a
recirculation line, off the discharge line, which returns to the
supply reservoir below the liquid level. Recirculation is required
when pump flow is less than 25% of best efficiency point
(BEP), or less than 50% of BEP for all Frame M pumps and for
Frame A /LD17 330 mm (13 in.) running at 2900 RPM or
greater.
A valve or orifice should be installed in the bypass line to
regulate flow and to prevent the pump from running out on the
pump curve. In some cases, an automatic valve is needed to
regulate flow or to prevent excessive stops and starts,
especially when using large motors.
The recirculation line is needed to control temperature
increases above the rated surface temperatures. Product
temperatures above ambient also increase surface
temperatures.
The pump should be protected from surges and water hammer
from quick acting valves in the system.
For auxiliary pipe connections, see section 7.0.
1301-C00 page 8/56
Page 10
Maximum Allowable Forces and Moments on
Nozzle Flanges
F = Force
M = Moment
Subscript X = Horizontal, parallel to shaft
Subscript Y = Vertical
Subscript Z = Horizontal, parallel to side nozzle
1301-C00 page 9/56
Page 11
2.7 Mechanical Seal
Never operate the pump without liquid
supplied to the mechanical seal.
Running the mechanical seal dry, even
for short periods, can cause seal
Hazardous fluids can
cause fire, serious
personal injury or
property damage.
damage and/or failure. Physical injury
can occur if mechanical seal fails.
The mechanical seal is flushed and cooled by either the
pumped fluid or an external source. If the mechanical seal is
flushed from an external source, it is required that the media
be clean, solid free, and compatible to the pumped fluid.
Quench, vent, and/or drain ports are available on some seals.
Ensure proper connections are made when the application
requires it. Always follow all instructions provided with the seal
Prior to pump operation:
1. Be sure all set screws are tightened to the shaft.
2. Check that all centering clips are removed.
3. Ensure that all required mechanical seal auxiliary systems
are installed and properly connected.
Seal life is dependent on a number of factors including
cleanliness of process, operating conditions, etc. As such it is
difficult to predict actual seal life for a given application.
2.8 Lubrication
Bearing Oil Lube
The pump bearing frame must be filled with a high quality, antifoaming turbine oil containing rust and oxidation inhibitors.
Bearing temperatures should not exceed 180° F (82° C) thus
an ISO VG 68 oil should be used.
Some recommended oils are:
Texaco Regal R + O NO. 68 Mobil DTE Heavy Medium
Shell Turbo NO. T68 Shell Omala 68
Royal Purple Synfilm ISO VG 68 (synthetic)
The oil should be changed every 12 months with more
frequent changes under severe environmental conditions, such
as dust, moisture and corrosive atmospheres.
Lubricating Oil Properties:
ISO GRADE.VG ......................................................... 68
Approximate SSU at 100°F (40°C) ........................... 300
300 Kinematic Viscosity at 100°F (40°C) (cSt). ........... 68
Oil Level
The oil level in the bearing frame should be one-half (1/2) of
the way up the oil sight glass with the unit not operating.
If there is a slight loss of oil through the labryinth
seals:
1. Lower the oil level to approximately 1/3 sight glass height.
2. Check that the pump bearing frame is level.
3. Check that oil return groove in cartridge is at 6 o’clock
(“blackmer” should be across the top at 12 o’clock).
4. Check that radial labyrinth seal stator drain is at 6 o’clock
(Frame A and M only).
Use a premium quality lithium grease, having an NLGI 2 or 3
consistency and a base oil viscosity of 68 centistokes
minimum at 40°C. When reassembling a pump, the bearings
are best pre-greased after assembly onto the shaft. The
bearings should be packed full with grease and the bearing
housing adjacent to the bearings packed one third to one half
full.
NOTICE:
Never mix greases of different consistencies.
Please note that vertical pumps are all grease lubed and that
bearings are greased at the factory, thus no additional grease
at installation is required.
Some recommended greases are:
Chesterton #615 SKF LGMT2/LGMT3
Re-greasing Intervals:
For back to back angular contact, single and double row
bearings, add several shots of grease from a grease gun at
following intervals.
At 950 RPM, add grease every 5500 hours.
At 1180 RPM, add grease every 5000 hours.
At 1450 RPM, add grease every 5000 hours.
At 1750 RPM, add grease every 4000 hours.
At 2950 RPM, add grease every 3000 hours.
At 3550 RPM, add grease every 1250 hours.
At bearing temperatures above 150°F (66°C), the bearings
require re-greasing more often. Greasing intervals should be
halved for every 27°F (15°C) increase. Maximum grease
temperature should not exceed 185°F (85°C). Completely
replace the grease at every third re-greasing interval, or once
a year minimum.
NOTICE:
Over greasing is the most common cause of bearing
overheating and will contribute to premature bearing
failure.
Coupling Lubrication
The pump coupling may or may not require lubrication. For
information on lubrication, refer to the coupling manufacturer’s
instructions.
2.9 Temperature Control
NOTICE:
Normal operating oil temperature should be below
160°F (71°C) and should never exceed 180°F (82°C).
Bearing Frame
Bearing cooling may be needed to keep surface temperatures
within required temperature ratings.
Water cooling of the bearing frame is accomplished with the
optional cooling coil. The cooling coil is required only when the
pumped media temperature exceeds 400°F (204°C) at 1800
rpm or 300°F (149°C) at 3600 rpm. Under these conditions,
ambient temperature water at 1 - 3 gallons per minute (0.23 to
0.68 m3/hr) will be required for proper cooling of the oil. Higher
flows may be required to keep the oil temperature below the
maximum recommended.
The cooling water must be turned on before the hot process
fluid is allowed to enter the pump.
The optional System One Oil Temperature Monitor is
recommended for all applications, especially for high
temperature.
1301-C00 page 10/56
Page 12
Seal Chamber
A water jacketed seal chamber is available for Frame SD, S,
A, and M pumps. The requirements for the jacket are based on
the type of mechanical seal and selection of elastomers.
Normally, a jacket should be considered for any application
over 350°F (177°C). Please consult the factory for specific
recommendations.
When a jacket is installed, ambient temperature water at 2 - 3
gallons per minute (0.45 to 0.68 m3/hr) will be required for
proper cooling of the seal chamber.
The cooling water must be turned on before the hot process
fluid is allowed to enter the pump.
Mechanical Seal
The seals may be cooled/heated from an external source or by
passing pump discharge fluid through a heat exchanger and
then into the seal flush connection.
A double seal may use cooled/heated barrier fluid from an
external source or convection system. Always follow seal
operating instructions as required by the instruction booklet
provided with the seal.
3.0 OPERATION
3.1 Operating Parameters and Limits
3.2 Start-Up Inspection
Lock-out driver to prevent accidental
start-up and physical injury.
Hazardous
machinery can
cause serious
personal injury.
1. Check Installation. Make certain the entire pump is
properly aligned, and all auxiliary systems are connected
and ready for implementation.
2. Check Direction of Rotation.
NOTICE:
Improper direction of pump rotation will damage the
pump.
When checking for proper direction of rotation, the
coupling must be completely disconnected from the pump
and driver. Run the driver independently to check for
proper direction of rotation. Direction of the pump rotation
is clockwise when viewed from the coupling end and is
indicated by an arrow on the front of the casing.
Once direction of rotation is confirmed, reconnect coupling
and confirm alignment.
3. Check Impeller Clearance.
Never run the pump outside of the
operating limits as property damage or
physical injury could result.
Hazardous
machinery can
cause serious
personal injury.
1. Shaft Speed: 3600 RPM maximum, except Frame M
which is limited to 1800 RPM maximum.
2. Power Input: Maximum allowable input power is shown in
Section 2.1 and is based on frame size and shaft material.
3. Pressure —Temperature Limits: The following table
shows maximum allowable pressures (gage) for given
temperatures and wet end materials. Values occurring
between those shown may be interpolated. At no time
should temperatures exceed 400°C (750°F).
4. Sound level: 85 dBA maximum located 3ft (1 m) in front
200 (93) 235 (16.2) 235 (16.2) 260 (17.9) 200 (13.8)
300 (149) 215 (14.8) 215 (14.8) 230 (15.9) 180 (12.4)
400 (204) 200 (13.8) 200 (13.8) 200 (13.8) 160 (11.0)
500 (260) 170 (11.7) 170 (11.7) 170 (11.7) 150 (10.3)
600 (315) 140 (9.7) 140 (9.7) 140 (9.7) 140 (9.7)
650 (343) 125 (8.6) 125 (8.6) 125 (8.6) DO NOT USE
700 (371) DO NOT USE 110 (7.6) 110 (7.6) DO NOT USE
750 (400) DO NOT USE 95 (6.6) 95 (6.6) DO NOT USE
PRESSURE Psig (Bar)
NOTICE:
Pump units have impeller clearance pre-set prior to
shipment from factory.
NOTICE:
Setting impeller clearance is important for
maintaining maximum pump efficiency. For high
temperature applications, compensation for
additional thermal growth must be made.
Set impeller clearance.
a. Unfasten the mechanical seal from the shaft when
making adjustments.
b. Check total clearance and make certain it conforms
to the instructions given. (section 4.3).
c. Set the proper operating clearance on the suction
side of impeller (except Vortex type which is set off
the back cover). (section 4.4).
If the pumpage temperature, exceeds 100°F (38°C)
increase the clearance on the suction side of the impeller
per section 4.4 of this manual.
1301-C00 page 11/56
Page 13
4. Check Rotating Element.
Turn the shaft by hand several times to ascertain a free
rotating element. There will be a degree of resistance due
to the bearings and the mechanical seal. If any rubbing
noise occurs, do not attempt to operate the pump. Readjust the impeller clearance as outlined in section 4.3
and 4.4 and reset the mechanical seal per its instructions.
5. Check Lubrication.
Check the pump, motor and coupling to make certain they
are properly lubricated. See section 2.8 for pump
lubrication information.
6. Check Radial Bearing
Labyrinth Seal (Frames A and LD17 only). If the frame
adapter is rotated, relocate the stator portion of the
labyrinth so that the oil drain groove is located at the 6
o’clock position. See Section 4.2.
3.3 Auxiliaries Startup
Prior to priming and starting the pump, auxiliary components
on the unit must be turned on where applicable. The pump
motor must not be started until all the auxiliary systems are in
full operation.
Bearing Frame Cooling
If applicable, turn on the water to the cooling coil in the bottom
of the oil sump. For proper flow, see section 2.9.
Mechanical Seal
If applicable, turn on the flush, quench or forced barrier fluid to
the mechanical seal. Adjust flow and pressure as
recommended by the installation instructions provided with the
sealing device. If environmental controls include a heat
exchanger, turn on the heating/cooling fluid.
Seal Chamber Jacket
If applicable, turn on the water to the cooling jacket mounted
on the seal chamber. For proper flow, see section 2.9.
3.6 Pump Performance
After the pump is running, check to see that it is running at, or
close to, the operating point on the pump performance curve.
If the pump is delivering too great a volume, or overloading the
motor, throttle the discharge valve. It may be necessary to add
a restriction orifice at the pump discharge to control the pump
capacity.
Check and monitor all the flows and pressures to the auxiliary
components. Adjust the flows and pressures accordingly.
Check the mechanical seal for leakage. Check all connections
for possible leaks and tighten where necessary.
After the pump has run for about one hour and is at full
operating temperature, shut it down, lockout the power, and
turn (in the direction of the rotation arrow) the shaft by hand to
determine that the rotating element is not binding and the
impeller is not rubbing. Shaft alignment should be checked.
See section 2.5 for coupling alignment.
Never operate the pump below minimum
rated flow and/or with the discharge
valve closed. These operating
conditions could cause extreme
temperature rise in the pump and an
Explosive fluids will
cause severe
personal injury
death or major
property damage.
explosive hazard. Also, premature
failure can result due to high radial
loads and vibration on the pump shaft.
3.7 Shutdown
When shutting down the pump, p roceed as follows:
1. Turn off the driver and de-energize power. Be sure motor
is locked out before attempting to work on the pump.
3.4 Priming
The pump is now ready to be primed.
1. Close the pump discharge valve.
2. Open the pump suction valve.
Never operate the pump dry. It is
important that the pump never be
subjected to thermal shock. The liquid
must be allowed to enter the pump
casing slowly. The pump should never
Hazardous fluids can
cause fire, serious
personal injury or
property damage.
be started until all parts have been
gradually brought to the ultimate
intended pump temperature.
3. After priming ensure that all vent and/or ejector
connections are closed.
3.5 Startup
NOTICE:
Prior to startup, and while pump is still locked-out to
prevent accidental startup, ensure the shaft turns freely
by hand! (clockwise when facing the coupling end)
Fully open the suction valve. Start the pump with the discharge
valve approximately 20% open, then open gradually until
design flow point is reached. The discharge valve should be
adjusted to achieve proper process flow with the pump
operating as close to the BEP as possible. Make certain the
suction line is not throttled nor restricted in any way during
operation.
Lock-out driver to prevent accidental
start-up and physical injury..
Hazardous
machinery can
cause serious
personal injury.
2. Close the discharge valve.
3. Close the suction valve.
4. Drain the pump casing.
5. Turn off all auxiliary components in the reverse sequence
from startup.
6. In cold weather, the entire pump, including all auxiliary
components, should be completely drained to prevent
damage from freezing.
Tagging valves should be standard practice by user.
When handling hazardous and/or toxic
fluids, use personal protection
equipment to avoid personal injury.
Pumpage must be handled and
. Hazardous or
toxic fluids can
cause serious
injury.
disposed of in accordance wi th
applicable environmental regulations.
1301-C00 page 12/56
Page 14
4.0 MAINTENANCE
4.1 Disassembly Procedure
Always use a lifting device capable of
supporting the full weight of the pump
Heavy assemblies
can cause personal
injury or porperty
damage.
. Hazardous or
toxic fluids can
cause serious
injury.
Hazardous
machinery can
cause serious
personal injury.
Hazardous pressure
can cause personal
injury or property
damage
The System One Pump design incorporates the back pullout
feature. This permits removal of the entire power end
assembly, including the seal, back cover and impeller, without
disturbing the discharge piping, suction piping or motor. The
power end with C-frame or D-flange motor adapter can also be
removed as a unit if the motor is wired with flexible conduit.
Remove the Power End Assembly
See the appropriate pump assembly drawing in section 8.0.
1. Lockout driver and tag it.
2. If pump has a C-frame adapter and power is rigid piped,
disconnect the power connection at driver.
3. Remove the coupling guard.
4. Disconnect the coupling between the pump and the driver
shafts by removing the spacer piece between the hubs. If
the pump has a motor adapter and the driver is
suspended and wired with flexible conduit, the coupling
will not have to be removed.
5. Drain the entire system and be sure there is no liquid left
in the pump casing.
components or assemblies.
Personal protective equipment must be
worn if there is a potential for handling
hazardous or toxic materials. Fluid must
be handled and disposed of in
accordance with local and national
regulations. Pump must be isolated by
closing suction and discharge valves
before working on the pump.
Lock-out power to the driver before
working on the pump. Failure to
properly lock-out driver could result in
accidental start, causing personal
injury.
Do not adjust or disassemble any
pressure containing component or shaft
seal prior to depressurizing the primary
and auxiliary fluid systems. This will
ensure that no hazardous or high
pressure fluid is ejected that may cause
personal injury or equipment damage.
6. Disconnect inlet and outlet lines to the mechanical seal, if
applicable.
7. Remove the screws or nuts securing the casing (1) as
follows:
Frame SD
Remove 8 nuts from studs that fasten the bearing frame
(19) to casing (1).
Frame S
6 in. pumps:
Remove 4 nuts from studs that fasten the bearing frame
ring (19) to casing (1).
8 in. pumps:
Remove 8 nuts from studs that fasten the adapter plate
(432) to the casing (1).
Frame A and LD17
8 in. (200 mm),10 in. (250 mm) pumps:
Remove nuts securing frame adapter (71) to casing (1).
13 in. (330 mm) pumps:
Remove 12 fasteners securing back cover (11) to casing
(1).
Frame M:
Remove the nuts that fasten the frame adapter (71) to the
casing (1).
Never use heat to remove parts. Use of
heat may cause an explosion due to
trapped fluid resulting in physical injury
Explosive fluids will
cause severe
personal injury
death or major
property damage.
and property damage.
8. Unfasten the holddown bolts between the bearing frame
foot (400) and the pump baseplate, also Frame S 8 in.
adapter plate, motor feet and motor adapter if applicable.
Be sure to mark any shims so that they can be replaced
appropriately during reassembly.
9. The complete power end assembly can now be removed
from the pump casing (1). Jackbolts are located on the
frame adapter ring to help remove the backcover from the
casing.
10. The vortex pump has a separate suction cover (9) that
can be replaced if worn.
Remove the Impeller, Back Cover and Seal
1. Remove the impeller (2) and O-ring (38) from the shaft
(6). The impeller has a right hand thread. The coupling
end of the shaft can be held firm with an impeller wrench.
An impeller wrench can be made by welding a steel bar to
a steel coupling hub. Do not put a pipe wrench directly on
the shaft. The impeller wrench is recommended for this
operation as it provides proper leverage for easy impeller
removal:
a. Insert the impeller wrench onto the coupling end of
the shaft.
b. Grip the impeller and rotate clockwise to lift the
wrench off the work surface.
c. Quickly turn the impeller counterclockwise (facing
suction end) impacting the wrench on the work bench
until the impeller loosens.
1301-C00 page 13/56
Page 15
Never use heat to remove parts. Use of
heat may cause an explosion due to
trapped fluid resulting in physical injury
Explosive fluids will
cause severe
personal injury
death or major
property damage.
and property damage.
Wear heavy work gloves when handling
impellers as sharp edges may cause
Hazardous
machinery can
cause serious
personal injury.
2. Install the mechanical seal centering clips if available.
Remove the seal gland stud nuts. Remove
backcover/frame adapter nuts quantity 2 except for 13 in.
Frame A pumps which have quantity 8, then remove the
back cover (11) assembly from the frame adapter (71).
Loosen the set screws on the mechanical seal to free it
from the shaft (6), then remove the seal.
3. Drain the oil from the bearing frame (19) by removing the
plug (414) below the oil level sight glass (143). If the
optional System One temperature monitor is installed, it is
removed to drain oil.
4. If the power end is to be completely disassembled,
remove the motor adapter at this time.
5. Remove the frame adapter/bearing frame screws (quantity
4 for Frame A, quantity 8 for Frame M) and remove the
frame adapter (71) from the bearing frame (19)(not
applicable to Frame SD and S).
6. Clean and lubricate the shaft surface to facilitate removal
of the labyrinth seal. In doing so, the rotor portion of the
radial labyrinth seal (89E) with two flourocarbon (FKM) Orings (89F) will slide off the shaft (6).
7. Press out the stator (89D) portion of the radial labyrinth
seal if replacement is required (not applicable to Frame
SD and S as the stator is integral to the bearing frame).
For Frame M pumps, the radial labyrinth rotary seal (89E)
will not be removed with the frame adapter (71) as it is
part of the radial labyrinth seal acting as a radial bearing
cover.
Remove and Disassemble the Rotating Element
1. The rotating element assembly can now be removed from
the bearing frame (19) (after removal of C-frame or Dflange motor adapter if supplied). Remove the cartridge
lock nuts (404), quantity 3 for Frame SD, S and A,
quantity 4 for Frame M. Slide the rotating element out
from the back end of the bearing frame (19).
2. The micrometer nuts (66) can be used to help disengage
the cartridge O-ring (405) from the bearing frame (19)
3. The rotating element assembly can now be disassembled.
Remove the pump half of the coupling from the shaft (6) if
this has not already been done.
4. Remove the bearing retainer screws and the bearing
retainer cover (35) from the cartridge (33).
physical injury.
5. Clean and lubricate the shaft surface at the motor end to
facilitate removal of the labyrinth seal. Remove the
cartridge (33) with O-ring (405) from the rotating element.
In doing so, the rotor portion of the thrust labyrinth seal
(89B) with two O-rings (89C), will slide off the shaft.
6. Press out the stator portion of the labyrinth seal (89A)
from the cartridge if replacement is necessary. Applies
only to pre-2000 Frame A and LD17 models. All others
have stators as part of the thrust cartridge.
7. Bend out the locking tab from the locking slot in the lock
nut (22). Remove the thrust bearing lock nut (22) and lock
washer (69). The threads on the shaft are right hand.
For detailed instructions on handling and removing
bearings, see section 12.0
8. Press the thrust bearings (18) from the shaft (6) using an
arbor press. A fixture is necessary (split steel plate with a
bored hole of the same diameter as the maximum shaft
diameter) to hold the shaft in the arbor press by the inner
race of the bearing and to allow the press arbor to contact
the end of the shaft. Care is necessary so that the shaft is
not scratched or bent. Shaft must be perfectly aligned
under the arbor. Do not use a hammer or other tools that
may damage the shaft.
NOTICE:
Always press on the inner race of the bearings when
removing from a shaft.
9. Press the radial bearing (16) from the shaft (6) in the
same manner.
10. Loosen the flinger set screw and remove the flinger (62)
along with the bearing retainer cover (35) from the shaft
(6). Frame S pumps do not have a flinger.
4.2 Assembly Procedure
See appropriate pump assembly drawing in section 8.0.
See Fastener Torque Chart section 11.0.
Assemble Rotating Element
1. Clean all parts thoroughly, especially gasket surfaces, fits,
and the inside of the oil sump.
2. Replace all O-rings, gaskets, thrust bearings, the radial
bearing, and mechanical seal wear parts.
3. Inspect all remaining parts and determine if they should
be reused, repaired or replaced. Use good judgement for
a successfully reconditioned pump.
See Pump Component Inspection section 13.0 and Pump
Tolerances 10.0.
4. Slide the flinger (62) on the shaft (6). The Frame SD and
S have no flinger.
5. Mount the bearing retainer cover (35) loosely on the shaft
(6) with the smaller diameter ring facing toward the
coupling end.
For detailed instructions on Bearing Installation see
section 12.0
6. Heat the thrust bearing(s) (18) in hot oil, or with an
induction heater, to a temperature of 240°F (116°C).
Using clean, insulated gloves, mount the hot thrust
bearings back-to-back (letters to letters) on the coupling
end of the shaft (6). For Frame SD, A and M, be sure the
bearings are tight against each other. The standard
Frame S thrust bearing is one piece only and can be
mounted in either direction (except for optional angular
contact bearings). Make sure bearings are seated against
shaft shoulder.
1301-C00 page 14/56
Page 16
Wear insulated gloves when using a
bearing heater. Hot bearings can cause
physical injury.
Extreme heat can
cause injury or
property damage.
Maximum Allowable Tightening Torque
For Bearing Locknuts
7.Install the lockwasher (69) on the shaft with the tab in the
keyway. Fasten securely with the lock nut (22) and tighten
with a spanner wrench per the corresponding torque
shown in the chart above. When cooled, tighten again to
make certain the thrust bearing inner race is against the
shaft shoulder and the outer races do not turn against
each other. If the bearing has to be reset, remove the
locknut and use an arbor press with a sleeve to seat the
inner race of the bearing eliminating any clearance.
Finally, turn down the appropriate tab on the lock washer
into the matching slot on the lock nut.
8.Heat the radial bearing (16) in hot oil, or with an induction
heater, to a temperature of approximately 240°F (116°C).
Using clean insulated gloves, mount the hot radial bearing
on the impeller end of the shaft (6) and bottom against
shaft shoulder. Allow the bearing to cool on the shaft in
the vertical position so that the bearing will stay seated
against the shaft shoulder while it shrinks to the shaft.
9.Press in the new labyrinth seal stator (89) if replacement
is necessary. Press in until the face of the stator is flush
with the machined tooth in the housing. Make certain that
the oil return groove aligns itself with the oil return slot in
the I.D. of the cartridge. The side with the smallest I.D.
should face inside the cartridge.
10. Mount the new O-ring (405) in the groove on the O.D. of
the cartridge (33).
11. Mount the cartridge (33) over the thrust bearings (18) until
the outer race is seated against the shoulder inside the
cartridge. Slight heating of the cartridge and lightly oiling
the OD of the bearing will ease this assembly.
12. Fasten the bearing retainer cover (35) to the cartridge (33)
and evenly torque in an alternating pattern the quantity 8
socket head cap screws to the value shown in the bolt
torque chart. See section 11.0.
13. Mount the micrometer nuts (66) on the cartridge studs
(403) at the coupling end of the bearing frame (19). Make
certain that the hex nut portion is pointing toward the
bearing frame (19).
14. Locate the flinger (62).
Frame SD and S do not require a flinger.
Frame A/LD17 is 0.86 in (22 mm) from the radial bearing
shoulder with the hub facing the radial bearing.
Frame M is 2.0 in (51 mm) from the retainer cover (35).
Tighten the set screws.
Install Rotating Element in the Bearing Frame
See Pump Assembly Drawings section 8.0.
1.The rotating element is now ready to install in the bearing
frame (19). Lubricate the machined bores inside the
bearing frame and the O.D. of the cartridge (33), including
the O-ring (405), with oil. Slide the rotating element into
the bearing frame.
IMPORTANT:
Make certain that the oil return groove inside the cartridge (33)
is located at the 6 o’clock position in the bearing frame (19).
The “blackmer” logo, which is cast into the outer face of the
cartridge, must be at the top. This is important, as it allows the
oil to return to the bearing frame through the groove at the
bottom of the cartridge, once it has passed through the thrust
bearings (18).
2.Mount the cartridge lock nuts (404) onto the cartridge
studs (403). Maintain the lock nuts and micrometer nuts
(66) in a loose condition to allow a free floating rotating
element while the remainder of the pump is being
assembled.
3.Press the radial labyrinth seal stator (89D) into the frame
adapter (71) if replacement was necessary on the Frame
A/LD17 pump. Press in until the face of the stator is flush
with the machined tooth in the housing. Make certain that
the oil drain slot in the stator is in the 6 o’clock position
after the frame adapter is fastened to the bearing frame
(19).
4.For the Frame M, fit the labyrinth stator O-ring (89G) onto
the radial labyrinth seal stator (89D) and press into the
bearing frame (19).
5.
Frame SD and S have an integral stator in the bearing
housing.
6.Mounting frame adapter
a.
Frame SD and S have no separate frame adapter.
b.Frame A/LD17 Mount the frame adapter (71) onto the
bearing frame (19) with O-ring (72) in place and
fasten securely.
c.Frame M Has a radial labyrinth seal stator which acts
as a radial bearing cover and contains an O-ring
(89G) to seal the bearing frame.
7.Lubricate the shaft surface with grease or oil to facilitate
mounting the thrust labyrinth seal rotor (89B). Mount with
two O-rings (89C) on the shaft (6) at the coupling end.
Push it all the way into the stator so that the grooves
mesh into one another.
8.Lubricate the shaft surface with grease or oil to facilitate
mounting the radial labyrinth seal rotor (89E). Mount with
two O-rings (89F) on the shaft (6) from the impeller end.
Push all the way into the stator so that the grooves mesh
into one another.
1301-C00 page 15/56
Page 17
Install Mechanical Seal
See mechanical seal instructions.
Never operate the pump without liquid
supplied to the mechanical seal.
Running the mechanical seal dry, even
for short periods, can cause seal
Hazardous fluids can
cause fire, serious
personal injury or
property damage.
damage and/or failure. Physical injury
can occur if mechanical seal fails.
Lubricate the shaft with silicone lubricant. Slide the mechanical
seal assembly, including all O-rings and gaskets, over the
shaft (6).
Install Back Cover
1. Slide the back cover assembly (11) over the shaft and
fasten it to the frame adapter (71) with 2 nuts for Frame
SD, S, Frame A 8 in. and 10 in., and Frame M.
The Frame A 13 in. back cover requires 8 nuts.
Be sure to remove any paint or debris from the OD of the
frame adapter ring.
2. Lightly tighten the mechanical seal gland nuts. These will
be snugged later.
Install Impeller
Wear heavy work gloves when handling
impellers as sharp edges may cause
Hazardous
machinery can
cause serious
personal injury.
Treat the impeller thread with nickel anti-seize before
assembly to prevent galling. Fasten the impeller (2) with PTFE
O-ring (38) to the shaft (6).
Make sure the impeller hub is fastened hand-tight against
the shaft shoulder.
Apply silicone grease to the impeller hub if the pump is an
LD17 where the mechanical seal O-ring rides on the impeller
hub.
Install Casing
1. Mount the casing (1) to the frame adapter (71). Be sure to
insert the gasket (73A) between the casing (1) and the
back cover (11). Tighten the casing studs in a crisscross
pattern.
2. The 13 in. Frame A/LD17 casing bolts directly to the back
cover.
3. Install both feet on the Frame A casing.
4. Mount the entire pump assembly onto the baseplate and
securely fasten all the hold down bolts.
5. Attach the suction and discharge piping to the casing (1)
while ensuring no strain is imparted to the pump.
NOTE:
The vortex pump has a separate suction cover that can be
replaced if necessary.
physical injury.
1301-C00 page 16/56
4.3 Impeller Total Clearance
See Pump Assembly Drawings section 8.0.
It is important to determine whether there is sufficient total
impeller clearance within the assembled wet end which
includes the casing (1), impeller (2), back cover (11), and
suction cover, if applicable.
This procedure is not necessary for the vortex pumps.
1. Loosen all three (Frame SD, S A), or four (Frame M)
micrometer nuts (66) and lock nuts (404).
2. Tighten the cartridge lock nuts (404) alternately until the
impeller (2) just begins to scrape the suction side of the
casing (1). By turning the shaft (6) manually, clockwise
facing the coupling, you will hear the impeller scrape the
casing bowl. Turn the shaft (6) clockwise only and in
complete revolutions between adjustments.
3. Tighten the micrometer nuts (66) alternately, so that they
are flush against the cartridge (33). Back off the lock nuts.
(404).
4. Turn the micrometer nuts (66) alternately, counting the
number of radial lines moving along a fixed point on the
cartridge flange. By turning the set of micrometer nuts (66)
from one radial line to the next, the impeller (2) will move
away from the suction side of the casing (1) by 0.003 in.
(0.08 mm). Continue to do this while rotating the shaft (6)
clockwise until the back of the impeller (2) begins to rub
the back cover (11).
5. Use the following equation to find the total clearance:
No. of radial lines x 0.003 in. (0.08 mm)
= total clearance
The total clearance should fall between .
0.040 in. -0.070 in. (1.02 mm -1.78 mm).
6. If the total clearance needs to be adjusted, proceed as
follows:
Change the thickness of the casing gasket (73A) that is
located between the casing (1) and the back cover (
).
Increasing the gasket thickness will increase the total
clearance. If no thicker gasket is on-hand, a second
gasket may be installed.
4.4 Impeller Operating Clearance
See Pump Assembly Drawings section 8.0.
The impeller operating clearance is the gap between the
impeller blades and the casing bowl. This gap is important in
achieving proper performance from the pump.
After the total impeller clearance has been established, set the
impeller operating clearance within the pump wet end
assembly as follows:
1. Loosen the micrometer nuts (66). For vortex pumps,
loosen the cartridge lock nuts (404).
2. Tighten the cartridge lock nuts (404) alternately until the
impeller (2) just begins to scrape the casing (1) bowl.
Manually turn the shaft (6) clockwise (from coupling end)
a complete revolution between adjustments and listen for
a scraping sound.
NOTE:
For vortex pumps, the impeller is set off the back cover.
Tighten the micrometer nuts evenly until the impeller back
vanes just begin to scrape the back cover. The shaft position
is set to the opposite face from the standard centrifugal pump
instructions indicated above.
3. Tighten the micrometer nuts (66) alternately so that they
are flush against the cartridge. Back off the three lock nuts
(404) by at least 0.12 in. (3 mm).
NOTE:
For vortex pumps, tighten the cartridge lock nuts (404).
Page 18
4. Turn the micrometer nuts (66) alternately, counting the
number of radial lines passing a fixed point on the bearing
cartridge flange. By turning the micrometer nut from one
radial line to the next, the impeller will move by 0.003 in.
(0.08 mm). The clearance required between the impeller
and the suction side of the casing will vary with the
temperature of the liquid being pumped as shown on the
following page:
Up to and including 100°F (38°C), set impeller
operating clearance at 0.015 in. (0.38 mm).
For every 50°F (28°C) above 100°F (38°C), increase
the operating clearance by an additional 0.002 in.
(0.05 mm).
Remember, each line represents 0.003 in. (0.08 mm),
so a 0.015 in. (0.38 mm) operating clearance will
require you to turn the micrometer nuts (66) five radial
lines.
NOTE:
For Vortex pumps, loosen the micrometer nuts (66)
approximately 15 lines of 0.003 in. (0.08 mm) each which
provides a clearance between the impeller and back cover of
0.045 in. (1.14 mm).
5. Tighten the lock nuts (404) evenly and alternately against
the cartridge (33) flange. Make certain the micrometer
nuts (66) do not move while this is being done. Use two
wrenches, one to hold the micrometer nut (66) the other to
tighten the lock nut (404). For Vortex pumps, tighten the
locknuts (404) until the cartridge is tight against the
micrometer nuts (66).
4.5 Set Mechanical Seal
After setting the impeller operating clearance, the mechanical
seal (80) can be adjusted and securely fastened to the shaft.
Tighten mechanical seal gland nuts per the torque
specification in section 11. For information on mechanical seal
installation, refer to the instructions accompanying the seal.
5.0 POWER END CONVERSIONS
For information on topics listed below, see app ro p riate
section as noted.
Motor specifications .............................................. .Section 2.1
The base, motor, and coupling may require some modification
before proceeding to install the new System One Power End
Conversion. Various options are available to use the existing
baseplate with the conversion power end.
Please contact the factory if there are any questions regarding
the appropriate procedure.
NOTICE:
If the end user is located in a member state of the
European Union, ensure that all applicable directives and
standards are followed while modifying these
components for incorporation into your machine.
1301-C00 page 17/56
Page 19
6.0 MOUNTING THE MOTOR
With the pump mounted without a soft foot and the discharge
flange level, mount the motor in one of two different methods
as follows:
6.1 Foot Mounted Motor
Pump and components are heavy.
Failure to properly lift and support
equipment could result in physical
Heavy assemblies
can cause personal
injury or porperty
damage.
In most cases, it will be necessary to install spacer blocks
under the motor feet to obtain proper motor support and
elevation. Allow for additional space under the motor feet of at
least 0.12 in. (3 mm) for shim stock to allow for proper motor
alignment.
A check for soft foot should be performed on the motor feet.
This “Soft Foot Check Procedure” can be used during the
initial shimming process or upon completion of the preliminary
alignment:
1. Tighten all hold-down bolts or nuts to approximately fifty
percent of torque value on the unit (pump and motor) to
be shimmed.
2. Secure a dial indicator base to the pump baseplate, or
suitable surface. The dial indicator stem is placed
vertically on the top edge of the foot to be checked. Zero
the dial indicator. Completely loosen the hold-down bolts
or nuts on that foot only. Watch dial indicator for foot
movement during the loosening process.
3. If the foot rises from the base when the hold-down bolts or
nuts are loosened, place shim stock equal to the amount
of deflection shown on the dial indicator under the foot.
Soft foot readings less than or equal to 0.005 in. (0.13
mm) require no corrections.
4. Tighten the hold-down bolt or nut and repeat the entire
process until no movement is present.
5. Move the dial indicator to the next foot and repeat the
above process.
6. Repeat until all feet have been checked and corrected as
necessary.
Remember: All other feet must remain securely
tightened when a foot is being checked for soft foot.
6.2 Coupling
Install a spacer type coupling between the pump and motor.
The pump and motor are now ready for alignment.
Shaft gaps are as follows for pumps not using motor adapters:
Frame SD: 3.94 in. (100 mm)
Frame S and Frame A: 3.63 in. (92 mm)
Frame M: 5.25 in. or 7.25 in. (133 mm) or (184 mm)
6.3 Motor Mounted on C-Frame or D-Flange Motor
Adapter
Wiring the motor with flexible conduit will allow simple removal
of the power end when servicing the pump.
The coupling end of the pump bearing frame has a male
fit for mounting the motor adapter which must be cleaned
to bare metal. Remove all the paint and debris from the
radial fit and the face fit surfaces. Failure to do so will
result in poor coupling alignment.
injury or damage to the pump. Steel
toed shoes should be worn at all times.
NOTICE:
1301-C00 page 18/56
1. Attach the motor adapter to the pump bearing frame (19).
Be sure to alternately tighten the bolts to maintain correct
alignment.
2. Install the coupling hubs on the pump and motor shafts.
3. Fasten the pump feet to the baseplate.
4. Bolt motor to motor adapter. Use a lifting device to
support the motor while attaching to the motor adapter. If
there is a small gap between the motor feet and the
support blocks, it must be completely filled with shims
while the motor is supported by the lifting device. This will
prevent motor adapter distortion that could result in shaft
misalignment.
5. After shimming, remove the motor support and fasten the
motor feet to the mounting blocks.
6. Motor frames 140 to 210TC weighing less than 183 lb (83
kg) can be suspended from the C-frame adapter without
additional support.
7. Motor frames 250TC weighing up to 309 lb. (140 kg) can
be supported by support feet (available from the factory)
under the two rear motor feet (except Frame SD and S
which requires 1 in. (25 mm) pads under the pump).
8. Motor frames 280TC and up, weighing more than 309 lb.
(140 kg) must be supported by and bolted to solid pads
under all four feet.
NOTICE:
Large motors may result in a slight deflection of the
motor adapter. Failure to follow this procedure below
may result in damage to pump and/or motor during
operation.
To insure proper alignment of motor and pump shafts, the
following procedures should be followed:
Externally mount a dial indicator to read movement of
the motor adapter motor end flange. Zero indicator
once it is in place.
Mount motor to C-frame adapter, noting any changes
to indicator reading.
a. If no change occurs, insert shims between motor
feet and motor pads such that all motor weight is
taken off the motor adapter. Secure the motor to
the base and check “soft foot” per section 6.1.
b. If the indicator reading shows movement, the
motor must be lifted and shimmed until the
indicator reading returns to zero and all the motor
weight is taken off the adapter. After inserting
shims between motor feet and motor pads, check
“soft foot” per section 6.1.
Fully torque all motor hold-down bolts before
operating motor.
9. Assemble and lubricate the coupling as required by the
coupling manufacturer.
10. Install coupling guard.
Never operate pump without coupling
guard properly installed. Personal
injury can occur if pump is operated
Do not operate
without guard in
place.
without coupling guard.
Page 20
C-Frame Motor Adapter Selection Chart
Motor Frame -NEMA Frame S Frame A Frame M
143 – 215TC C-Frame Small C-Frame
254 – 256TC Requires motor spacer
284 – 286T(S)C Requires motor spacer Large C-Frame Small C-Frame
324 – 326T(S)C Requires motor spacer Large C-Frame Small C-Frame
364 – 365TC Large C-Frame w/motor spacer Small C-Frame
364 – 405TSC Large C-Frame w/motor spacer
444 – 445TSC Large C-Frame w/motor spacer
404 – 449TC Large C-Frame
Small C-Frame w/motor
spacer and foot supports
Motor Frame - Metric Frame SD Frame A
80 IEC Motor Adapter
90 IEC Motor Adapter D-Flange Motor Adapter
100 IEC Motor Adapter D-Flange Motor Adapter
112 IEC Motor Adapter D-Flange Motor Adapter
132 IEC Motor Adapter with Motor Spacer D-Flange Motor Adapter
160 IEC Motor Adapter with Motor Spacer D-Flange Motor Adapter with Motor Spacer
180 IEC Motor Adapter with Motor Spacer D-Flange Motor Adapter with Motor Spacer
1301-C00 page 19/56
Page 21
7.0 AUXILIARY PIPE CONNECTIONS LIST
7.1 Auxiliary Pipe Connections List - Frame SD
Item
Number
*I BSP PL G ¼ 1 Casing Drain
II BSP PL G ¼ 1 Discharge Gage
III BSP PL G ¼ 1 Suction Gage
IV BSP PL G ¼ 1 Seal Chamber Flush
V 0.75 – 14 NPT 1 Oil Fill
*VI BSP PL G ⅜2 Seal Chamber Jacket - Inlet/Outlet
# VII 0.75 – 14 NPT 1 Oil Sight Glass
## X 0.25 – 18 NPT 1 Oil Drain or Temperature Monitor
XI 0.25 – 18 NPT 2 Magnetic Plug or Cooling Coil*
* Optional
# Left side of pump facing suction end
## Right side of pump facing suction end
## X 0.25 - 18 NPT 1 Oil Drain or Temperature Monitor
XI 0.25 - 18 NPT 2 Magnetic Plug or Cooling Coil*
* Optional
# Left side of pump facing suction end
## Right side of pump facing suction end
Size Number
Connection
of Taps
1301-C00 page 21/56
Page 23
7.3 Auxiliary Pipe Connections List - Frame A and LD17, IPP Frame A and LD17
Item
Number
*I 0.50 -14 NPT 1 Casing Drain
II 0.25 -18 NPT 1 Discharge Gage
# III 0.25 -14 NPT 1 Suction Gage
*IV 0.25 -18 NPT 1 Seal Chamber Flush (not available on LD17)
V 0.75 -14 NPT 1 Oil Fill
VI 0.25 -18 NPT 2
# VII 1.00 -11.5 NPT 1 Oil Sight Glass
#X 0.25 -18 NPT 1 Oil Drain or Temperature Monitor
## XI 0.50 -14 NPT 2 Magnetic Plug or Cooling Coil*
* Optional
# Left side of pump facing suction end
## Right side of pump facing suction end
(4 x 6 – 10, 4 x 6 – 13, 100 x 150 – 250 and 100 x 150 – 330 Casings have discharge tap only)
Size Number
of Taps
Seal Chamber Jacket* - Inlet/Outlet
Connection
(not available on LD17)
1301-C00 page 22/56
Page 24
7.4 Auxiliary Pipe Connections List - Vortex, Frame A, LD17 and IPP
Item
Number
*I 0.50 -14 NPT 1 Casing Drain
*II 0.25 -18 NPT 1 Discharge Gage
*IV 0.25 -18 NPT 1
V 0.75 -14 NPT 1 Oil Fill
*VI 0.25 -18 NPT 2
# VII 1.00 -11.5 NPT 1 Oil Sight Glass
#X 0.25 -18 NPT 1 Oil Drain or Temperature Monitor
## XI 0.50 -14 NPT 2 Magnetic Plug or Cooling Coil*
* Optional
# Left side of pump facing suction end
## Right side of pump facing suction end
Size Number
Connection
of Taps
Seal Chamber Flush
(not available on LD17)
Seal Chamber Jacket* - Inlet/Outlet
(not available on LD17)
1301-C00 page 23/56
Page 25
7.5 Auxiliary Pipe Connections List - Frame M
Item
Number
I 0.50 -14 NPT 1 Casing Drain
II 0.25 -18 NPT 1 Discharge Gage
* III 0.25 -18 NPT 1 Suction Gage
IV 0.50 -14 NPT 2 Seal Chamber Flush
V 0.75 -14 NPT 1 Oil Fill
*VI 0.50 -14 NPT 2 Seal Chamber Jacket - Inlet/Outlet
# VII 1.00 -11.5 NPT 1 Oil Sight Glass
#X 0.25 -18 NPT 1 Oil Drain or Temperature Monitor
## XI 0.50 -14 NPT 2 Plug or Cooling Coil*
* Optional
# Left side of pump facing suction end
## Right side of pump facing suction end
Size Number
Connection
of Taps
1301-C00 page 24/56
Page 26
8.0 PUMP ASSEMBLY DRAWINGS AND PARTS LIST
8.1 Pump Assembly & Parts List - Frame SD Horizontal
1301-C00 page 25/56
Page 27
8.2 Pump Assembly & Parts List - Frame S Horizontal 6"
1
1301-C00 page 26/56
Page 28
8.3 Pump Assembly & Parts List - Frame S Horizontal 8"
1301-C00 page 27/56
Page 29
8.4 Pump Assembly & Parts List - Frame A and IPP Frame A
1301-C00 page 28/56
Page 30
8.5 Pump Assembly & Parts List - LD17 and IPP LD17
1301-C00 page 29/56
Page 31
8.6 Pump Assembly & Parts List - Vortex Frame A and IPP Vortex Frame A
1301-C00 page 30/56
Page 32
8.7 Pump Assembly & Parts List - Vortex LD17 and IPP Vortex LD17
9.1 Recommended Spare Parts - Frame SD – Horizontal
Service: Pump No:
Pump Size: Serial No:
Number Item Size Material
2
38
6
16
18
35
89B
89C
89E
89F
405
73a
80 Mechanical Seal Spare Parts Kit 38 mm
*FKM – flourocarbon elastomer.
Open Impellers – CD4MCu Size: 32 x 50 – 160 , 32 x 50 – 200, 50 x 80 – 200
Consult your distributor or the factory for Blackmer item numbers for the above component parts
9.2 Recommended Spare Parts - Frame S – Horizontal
Service: Pump No:
Pump Size: Serial No:
Number Item Size Material
2
38
6
16
18
35
89B
89C
89E
89F
405
73
3
80 Mechanical Seal Spare Parts Kit 1.500 in.
*FKM – flourocarbon elastomer.
Open Impellers – CD4MCu Size: 1 x 1.5 – 6, 2 x 3 – 6, 1 x 1.5 – 8, 1.5 x 3 – 8
Consult your distributor or the factory for Blackmer item numbers for the above component parts
Impeller (includes O-ring)
O-ring
Rotating Element:
Complete Assembly
By Components:
Shaft Assembly
Radial Bearing
Thrust Bearing
Retainer Cover
Thrust Bearing Labyrinth Seal
Rotor (includes O-ring)
O-ring
Radial Bearing Labyrinth Seal
Rotor (includes O-ring)
O-ring
Thrust Cartridge O-ring
Casing Gasket, 6 in.
Casing Gasket, 8 in.
Dia.
2-024 PTFE
5308 / 6308
6308 C3
5308 AHC3
1.125
2-024
1.50
2-029
2-155
.06 in.
.06 in.
316SS/Steel
316SS/Steel
Steel
316SS
FKM*
316SS
FKM*
Buna-N
Fiber filled Buna
Fiber filled Buna
1301-C00 page 41/56
Page 43
9.3 Recommended Spare Parts – ANSI and IPP Frame A and Vortex – Horizontal
Torque values shown are for standard pump materials and components.
For specials, factory must be consulted.
1301-C00 page 46/56
Page 48
11.2 Metric Fastener Torque Values
Bolt Size Item
M4x0.7 Screws, Retainer Cover to Cartridge-Frame SD 3.4 (30) NA
M6x1 Nuts, Back Cover to Bearing Frame-Frame SD NA 4.5 (40)
M10 x 1 Locknut for Securing Cartridge to Bearing Frame-Frame
SD
M10 x 1 EZ Just Nut for Adjusting Cartridge Position-Frame SD NA 24 (18)
M10 x 1 Nuts, Back Cover to Frame Adapter Frame A NA 27-34 (20-25)
M10 x 1.5 Nuts, Mechanical Seal to Back Cover-Frame SD NA 24 (18)
M12 x 1.25 Locknut, Cartridge to Bearing Frame-Frame A NA 41-54 (30-40)
M12 x 1.25 EZ Just Nut, Cartridge Position-Frame A NA 41-54 (30-40)
M12 x 1.75 Nuts, Bearing Frame to Casing-Frame SD NA 40 (29)
M12 x 1.75 Nuts, Mechanical Seal to Back Cover-Frame A NA 27-41 (20-30)
M12 x 1.75 Screws, Foot to Bearing Frame-Frame A 55 (41) NA
M12 x 1.75 Screws, Casing Foot to Casing-Frame A 30 (22)* NA
M16 x 2 Nuts, Back Cover to Frame Adapter-Frame A NA 136 (100)
M16 x 2 Screws, Frame Adapter to Bearing NA 136 (100)
M16 x 2 Nuts, Back Cover to Casing-Frame A NA 136 (100)
M20 x 1.5 Impeller-Frame SD NA
1.00 -12UNF Impeller-Frame A NA
KM8 Locknut, Bearing to Shaft-Frame SD 47 (35) NA
N10 Locknut, Bearing to Shaft-Frame A 95 (70) NA
1/8" NPT Pipe Connection 20 (15) NA
1/4" NPT Pipe Connection 22-26 (16-19) NA
3/8" NPT Pipe Connection 43-48 (32-35) NA
1/2" NPT Pipe Connection 68 (50) NA
3/4" NPT Oil Sight Glass-Frame SD 41 (30) NA
3/4" NPT Oil Filler Cap 20 (15) NA
3/4" NPT Oil Drain Plug-Frame A 41 (30) NA
1.00" NPT Oil Sight Glass-Frame A 41 (30) NA
Torque values shown are for standard pump materials and components.
For specials, factory must be consulted.
Steel Grade 5
N-m (in-lbf)
NA 24 (18)
Stainless Steel
N-m (in-lbf)
1301-C00 page 47/56
Page 49
12.0 BALL BEARINGS
12.1 Ball Bearing Handling, Removal And
Inspection
Ball bearings are carefully designed and made to precision
tolerances. They give long, trouble-free service when properly
applied and maintained. They will not stand abuse.
Keep Clean
Dirt causes 90% of early bearing failures. Cleanliness is a
must when working on bearings.
The following procedures are important:
Spread clean newspapers on work benches and at
pump. Set tools and bearings on newspapers only.
Wash hands.
Wipe dirt, chips, and grease off tools.
Keep bearings, housings, and shaft covered with clean
cloths whenever they are not being worked on.
Do not unwrap new bearings until ready to install.
Flush shaft and housing with clean solvent before re-
assembly.
Remove Bearings Carefully
Use bushing or puller which contacts the inner race of the
bearing.
Never press against the balls, ball cages, or outer race
only against the inner race.
Do not cock bearing. Use sleeve which is machined
square, or puller which is adjusted square.
Inspect Bearings and Shaft
Inspect bearing carefully. Replace it if there are any flat
spots, nicks or pits on the balls or races. Bearings should
be in perfect shape.
Turn bearing over slowly by hand. It should turn smoothly
and quietly. Replace if it catches or is noisy. Please note
that when turning over a shaft in a rotating element, the
bearing cage can make a rattle sound, this is normal.
Check condition of shaft. Bearing seats should be
smooth and free from burrs. Smooth any burrs with
crocus cloth.
Install New Bearings Carefully
1. Check the new bearing to be sure it has the proper
bearing number, prefix and/or suffix.
2. Lightly oil the bearing seat on the shaft.
3. Angular contact bearings must be installed back-to-back,
i.e. with letters-to-letters. See section 12.2 “Angular
Contact Bearing Assembly Procedure”.
4. Press bearing onto shaft squarely. Do not cock it on the
shaft. Be sure that the sleeve or bushing used to press
on the bearing inner race is clean, and machined square
on the ends.
5. Press the bearing firmly up against the shaft shoulder.
The shoulder helps support and square the bearing.
6. Be sure the locknut is on tight.
7. Lubricate properly, as explained in section 2.8.
12.2 Angular Contact Bearing Assembly Procedure
A bearing induction heater with a demagnetizing cycle is the
best tool for mounting bearings on a shaft. Other heating or
pressing techniques increase the risk of bearing
contamination and/or damage.
Wear insulated gloves when using a
bearing heater. Hot bearings can cause
physical injury.
Extreme heat can
cause injury or
property damage.
1. Inspect the shaft to ensure it is clean, dimensionally
correct and without burrs or nicks. Lightly coat the
bearing seating area with a film of light oil. If the radial
bearing is already installed, be sure to slide the retainer
cover over the shaft with the small lip (if present) facing
the thrust bearing end.
2. After removing the bearing from the packaging, clean the
preservative from the bearing bore and outer race.
3. Place both angular contact bearings on the bearing
induction heater. Heat to 240°F (116° C), checking the
temperature of the bearing with an appropriate means.
Use the demagnetizing cycle.
4. Remove one bearing from the heater with insulated
gloves.
5. Place the first bearing on the thrust bearing journal of the
shaft. The large shoulder of the inner race of the bearing
should be seated against the shaft shoulder.
NOTICE:
Angular Contact Bearings are mounted “back-to-back”,
i.e. the letter designations on the bearing races must be
facing each other.
6. Quickly, place the second bearing on the shaft tight
against the first bearing. The large shoulder of the inner
race of the bearing should be facing the threads on the
shaft.
7. Place a sleeve over the shaft against the inner race of
the bearing. Tap the sleeve lightly and evenly to insure
the bearings are tight against each other.
8. Install the lockwasher on the shaft so that the tab is in the
keyway.
9. Screw on the locknut and tighten with a spanner wrench
per the allowable torque values shown on the chart
below. The tab of the lockwasher should be bent over
into one of the grooves in the locknut.
10. After the bearings have cooled, check that the bearings
are tight to the shaft shoulder and the outer races do not
move relative to each other. If there is any clearance
noted or the bearing races move independently, the
bearing must be reset. Remove the locknut and use an
arbor press with a sleeve to press on the inner bearing
race, eliminating any clearance.
11. Lightly oil the OD of the bearing and slide the bearing
cartridge over the bearing.
12. Fasten the retainer cover with the socket head cap
screws by tightening each screw in an alternating pattern.
Torque each screw to the value as shown on the chart
below.
1301-C00 page 48/56
Page 50
12.3 Double Row Bearing Assembly Procedure
The Frame S pump uses a double row, 5308 thrust bearing,
otherwise the procedure is the same as in steps 1 through 12
above. Locknut tightening torques are listed in the table
below.
Maximum Allowable Tightening Torque For Bearing Locknuts
Pump and components are heavy.
Failure to properly lift and support
equipment could result in physical
Heavy assemblies
can cause personal
injury or porperty
damage.
1.Inspect inner face where impeller runs for any deep
gouges made from impeller rubbing or material caught in
the impeller. Gouges up to .125 in. (3 mm) deep are
acceptable for pump operation as long as pump system
pressure is below 150 psig (10 bar).
2.If there are numerous gouges and scratches, original
performance characteristics may be affected. If damage
is severe the casing may not be able to handle the
system pressure and should be replaced.
3.The vortex pump has a separate suction cover that can
be replaced if necessary.
Impeller
injury or damage to pump. Steel toed
shoes should be worn at all times.
2.If impeller is cut to a new diameter, it should be
rebalanced to ISO G6.3 balance specification.
3.If impeller was difficult to remove, impeller thread should
be re-chased with a tap. See section 11.0 for thread
sizes.
4.If the impeller shows excessive erosion, corrosion,
extreme wear or vane breakage, it should be replaced.
Back Cover
1.Inspect gasket face of stuffing box where mechanical
seal gasket seats. If the face is gouged or nicked, a cut
can be taken on a lathe duplicating the existing gasket
surface finish. Maximum stock removal .040 in.(1.0 mm).
2.Inspect back face for gouges or nicks and inner surface
of seal chamber for serious erosion, i.e. wall thickness
worn to less than .350 in. (9 mm) for Frame SD or S or
.420 in. (11 mm) for Frames A, LD17 and M. Unless
seriously damaged, remove any burrs and reuse cover.
Frame Adapter
Inspect faces to insure there are no cracks in flange rings
or extending from bolt holes. Inspect labyrinth seal stator
for signs of rubbing. If damaged seriously, i.e. rub more
than 1/3 of circumference, replace.
Bearing Frame
Inspect bearing bore dimensions per pump tolerance
chart, section 10.0.
Check sump for dirt or contaminants and clean as
necessary.
Wear heavy gloves when handling
impeller as sharp edges may cause
physical injury.
Hazardous
machinery can
cause serious
personal injury.
1.Inspect face of impeller for gouges on blades. Clean up
any burrs with a file or grinding wheel. If the impeller has
severely rubbed against the casing face, it should be
replaced as the efficiency and flow will not be maintained
to original specifications.
Cartridge
Inspect bore and O.D. of cartridge dimensions per pump
tolerance chart, section 10.0.
Inspect labyrinth seal stator for signs of rubbing. If
damaged seriously, i.e. rub more than 1/3 of
circumference, then replace cartridge.
1301-C00 page 49/56
Page 51
Shaft
Inspect shaft journal diameter dimensions per pump
tolerance chart, section 10.0.
Inspect shaft runout at mechanical seal area, impeller
end, and at coupling end with a dial indicator. Use “V”
blocks under the journals to fixture shaft while rotating
and reading dial indicator. Acceptable runout allowances
can be found on chart in section 10.0.
Inspect shaft for any scratches or nicks. If found under
journals or anywhere along the shaft where labyrinth seal
O-rings will slide, file or stone smooth. If found under the
mechanical seal, check location of O-ring on seal sleeve
where it sits on shaft (measure location of O-ring in seal
sleeve) to be sure it won’t seat over the damaged area. If
the seal O-ring sits on a damaged area, the shaft should
be replaced.
Inspect shaft thread. If there was difficulty removing the
impeller, the thread should be chased with the
appropriate die or cleaned with a thread file. See section
11.0 for thread sizes.
Bearings
When a pump is removed for mechanical seal or impeller
replacement, it is not necessary to replace the bearings
unless they are nearing the end of their operating life or
inspection reveals the following:
Flat spots on balls
Discoloration
Runs rough when spun
Bearing catches in one spot when spun
NOTE:
A bearing will sound somewhat noisy due to the metal
cage around the balls, if in doubt, replace the bearing.
However, be aware that needless replacement of
bearings is more potentially problematic than leaving
them on the shaft since removal can cause shaft damage
and improper placement can result in premature failure.
Be sure to replace bearings with an identical model and
size. Note that suffix letters are important. See bearing
listing under respective pump size in section 9.0.
Labyrinth Seal Rotors
Replace the labyrinth seal rotor if there is a rub mark
more than 1/3 around circumference at any diameter or if
seizing has occurred and shaft has spun inside, thus
wearing the O-ring grooves.
C-Frame Adapter and Feet
Check for any cracks in the casting mounting rings or
foot slots, replace as necessary.
Hardware, Gaskets, O-rings
Check all hardware for clean threads. Hardware with
threads that are broken or distorted should be replaced.
Clean all gasket surfaces to remove any residual gasket
material.
Replace all gaskets and O-rings.
1301-C00 Page 50/56
Page 52
14.0 TROUBLESHOOTING
Pump Does Not Deliver Liquid
Pump not primed
Pump suction pipe not completely filled with liquid
Insufficient available NPSH
Air pocket in suction line
Inlet of suction pipe insufficiently submerged
Pump operated with closed or partially closed suction
valve
Clogged suction strainer
Obstruction in suction line
Clogged impeller
Speed of pump too low
Wrong direction of rotation
Impeller diameter smaller than specified
Static head higher than shut-off head
Total head of system higher than design of pump
Parallel operation of pumps unsuitable for this purpose
Viscosity of liquid differs from design conditions
Insufficient Capacity Delivered
Pump suction pipe not completely filled with liquid
Insufficient available NPSH
Excessive amount of air or gas in liquid
Air pocket in suction line
Air leaks into suction line
Air leaks into pump through mechanical seal
Inlet of suction pipe insufficiently submerged
Vortex formation at suction
Pump operated with closed or partially closed suction
valve
Clogged suction strainer
Obstruction in suction line
Excessive friction losses in suction line
Clogged impeller
Two elbows in suction piping at 90° to each other,
creating swirl and prerotation
Speed of pump too low
Wrong direction of rotation
Uncalibrated instruments
Impeller diameter smaller than specified
Friction losses in discharge higher than calculated
Total head of system higher than design of pump
Viscosity of liquid differs from design conditions
Foreign matter in impellers
Insufficient Pressure Developed
Excessive amount of air or gas in liquid
Air leaks into suction line
Air leaks into pump through mechanical seal
Inlet of suction pipe insufficiently submerged
Vortex formation at suction
Pump operated with closed or partially closed suction
valve
Clogged suction strainer
Obstruction in suction line
Excessive friction losses in suction line
Clogged impeller
Two elbows in suction piping at 90° to each other,
creating swirl and pre-rotation
Speed of pump too low
Wrong direction of rotation
Uncalibrated instruments
Impeller diameter smaller than specified
Specific gravity of liquid differs from design conditions
Viscosity of liquid differs from design conditions
Foreign matter in impellers
Pump Loses Prime After Starting
Pump suction pipe not completely filled with liquid
Excessive amount of air or gas in liquid
Air leaks into suction line
Air leaks into pump through mechanical seal
Source of sealing liquid has air in it
Inlet of suction pipe insufficiently submerged
Vortex formation at suction
Excessive Power Consumption
Pump speed too high
Impeller diameter larger than specified
Binding rotating element
Impeller rubbing the casing or backcover
Bent shaft
The mechanical seal binding
Specific gravity higher than anticipated
Viscosity higher than anticipated
Solids concentration higher than anticipated (Vortex only)
The pump and driver shafts misaligned
Wrong direction of rotation
Uncalibrated instruments
Total head of system higher than design of pump
Total head of system lower than design of pump
Running pump at too high a flow
Foreign matter in propeller
Misalignment
Cavitation
Insufficient suction head available (NPSHA)
Operating at a higher capacity than specified
Excessive air or gas entrainment
Vortexing in the pump suction or intake system
Liquid temperature higher than the vapor temperature
Air leak in the pump or suction line
Partially plugged suction
Elbow too close to the pump suction
Temperature too low, thereby increasing liquid viscosity
1301-C00 Page 51/56
Page 53
Vibration
NOTE: The major frequency of the vibration can help to
pinpoint the source
Pump cavitatiion
Worn ball bearings
Impeller rubbing the casing bowl or backcover
Shaft binding
Bent shaft
Impeller out of dynamic balance
Pump and driver shafts severely out of alignment
Insufficient bearing lubrication
Worn motor bearings
Pump improperly assembled
A worn or defective discharge valve that may be fluttering
Pump suction pipe not completely filled with liquid
Clogged impeller
Transients at suction source (imbalance between
pressure at surface of liquid and vapor pressure at
suction flange)
Foundations insufficiently rigid
Loose foundation bolts
Loose pump or motor bolts
Inadequate grouting of baseplate
Excessive forces and moments from piping on pump
nozzles
Improperly mounted expansion joints
Resonance between operating speed and natural
frequency of foundation of baseplate or of piping
Lack of lubrication of certain couplings
Excessive grease or oil in anti-friction bearing housings
Moisture contamination of lubricant
Pump Vibrates or is Noisy at High Flows
Pump suction pipe not completely filled with liquid
Insufficient available NPSH
Vortex formation at suction
Pump operated with closed or partially closed suction
valve
Clogged suction strainer
Obstruction in suction line
Excessive friction losses in suction line
Clogged impeller
Two elbows in suction piping at 90° to each other,
creating swirl and pre-rotation
Total head of system lower than design of pump
Running pump at too high a flow (for low specific speed
pumps)
Excessive wear at internal running clearances
Pump Vibrates or is Noisy at Low Flows
Pump suction pipe not completely filled with liquid
Insufficient available NPSH
Selection of pump with too high a suction specific speed
Running the pump against a closed discharge valve
without opening a by-pass
Operating pump below recommended minimum flow
Running pump at too low a flow (for high specific speed
pumps)
Parallel operation of pumps unsuitable for this purpose
Excessive radial thrust in single-volute pumps
Premature Bearing Failure
See Items under “Vibration”
Frequency of lubrication is too low (grease), or the
quantity of lubrication is insufficient
Wrong type of oil or grease for the pump load, speed and
temperature involved
Inadequate water or air cooling to the bearing housing,
cooling jacket, or heat exchanger
Lubricant has undergone viscosity breakdown
Lubricant contamination
Bearing replacements that do not conform to the pump
manufacturer’s specifications. See section 9.0
Bearings improperly installed
Pump cavitation. See items under “Cavitation”
Belts on the belt drive too tight, causing excessive
loading (Belt drive units only)
Shaft diameter under the bearing inner race does not
conform to the manufacturer’s specifications. See section
10.0.
Bearing mounting diameter not conforming to the pump
manufacturer’s specifications. See section 10.0.
Excessive pipe stress
Shaft misalignment with the driver causing excessive
loading
Checks that can be made while the Pump is
Inoperative
Partial or complete disassembly may be required
Impeller Clearance
Coupling Alignment
Impeller Size
System Obstructions (Check Valve)
Pipe Stress
Bearing Fits
Mechanical Seal Condition
Shaft Run-Out
Wet End Inspection
Condition of Lubricant
Oil Level
Checks that can be made while the Pump is in
Operation
Blackmer, A Dover Company,
1809 Century Avenue S.W., Grand Rapids, Michigan 49503-1530, United States of America
Effective Feb 2012
Replaces Jun 2010
Section Forms
DECLARATION OF CONFORMITY
as defined by the ATEX directive 94/9/EC
Herewith we declare that all sizes of Blackmer System One pump models to which this declaration
relates are in conformity with the provisions of the ATEX Directive 94/9/EC. The above equipment is a
centrifugal pump designed for liquid transfer applications. This device is not intended to act as a safety
accessory. Technical file is archived with LCIE notified body number 0081, file no. LCIE 60052731-
553645.
Applied Harmonized Standards: EN1127-1, EN13463-1
__________________________ 29 February 2012
Thomas Madden Date
Vice President and General Manager
DECLARATION OF CONFORMITY
As defined by the Machinery Directive 2006/42/EC
Herewith we declare that all sizes of Blackmer System One pump models to which this declaration
relates are in conformity with the provisions of the Machinery Directive, 2006/42/EC. The above
equipment is a centrifugal pump designed for liquid transfer applications. This device is not intended to
act as a safety accessory.
This component must not be operated until the machine into which it is incorporated has been declared
in conformity with the provision of the directive.
Applied Harmonized Standards: EN809, EN292
___________________________
Thomas Madden Date
Vice President and General Manager
29 February 2012
www.blackmer.com
Page 55
notes
1301-C00 Page 54/56
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1301-C00 Page 55/56
Page 57
Sliding Vane Pumps: 5 to 2200 GPM
Refined Fuels, Liquefied Gases, Solvents,Process
®
System One
Centrifugal Pumps
10 to 7500 GPM; Process, Marine
Stainless Steel Sliding Vane Pumps
1 to 265 GPM: Acids, Brines, Sugars, Syrups,
Beer, Beet Juice, Cider, Flavor Extracts, etc.
Magnetic Drive Pumps
Stainless Steel: 14 to 215 GPM
Abaque Peristaltic Hose
0.1 to 210 GPM
High Lift, Solids, Abrasives
Hand Opera
ted Pumps
Dispensing, Transfer, In-line
Pumps
Reciprocating Gas Compressors
Liquefied Gas Transfer, Boosting, Vapor Recovery
Accessories
Gear Reducers, Bypass Valves, Strainers
Visit www.blackmer.com for complete information on all Blackmer products
1809 Century Avenue, Grand Rapids, Michigan 49503-1530 U.S.A.
Telephone: (616) 241-1611 • Fax: (616) 241-3752
E-mail: blackmer@blackmer.com • Internet Address: www .blackmer.com
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