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Table of Contents
Two year warranty . . . . . . . . . . . . . . . . . .Inside
front cover
Information for returning pumps and hoses . . . . . . . . . . .
. . . . . . . . . . . . . .Inside back cover
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .3
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .3
Pump hose . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .4
Lubrication and cooling . . . . . . . . . . . . . . . . . . . .
. . . . . . . .4
Shims . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .4
Recommended installation guidelines -points to observe . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Installation commissioning the pump . . . . . . . . . . . . . .
. . .5
Before operating the pump . . . . . . . . . . . . . . . . . . .
. . . . . .5
Hose pumps . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .6
Cleaning the pump hose . . . . . . . . . . . . . . . . . . . . .
. . . . . . .6
Hose replacement . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .6
Hose removal . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .6
Cover removal . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .7
Cover replacement . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .7
Assembly - Hose loading . . . . . . . . . . . . . . . . . . . .
. . . . . . .8
First assemble the lower port . . . . . . . . . . . . . . . . .
. . . . . .8
Assemble the upper port . . . . . . . . . . . . . . . . . . . .
. . . . . . .9
Shimming . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .9
Periodic maintenance requirements . . . . . . . . . . . . . . .
. .10
Oil changes . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .10
Materials of construction . . . . . . . . . . . . . . . . . . .
. . . . . . .11
Paint specification - standard . . . . . . . . . . . . . . . . .
. . . . .11
Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .11
SPX maintenance . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . .13
Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .16
Torque settings . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .18
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .19
Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .20
Planetary gearbox lubricant . . . . . . . . . . . . . . . . . .
. . . . . .21
Bearing lubricants . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .22
Shimming guide . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .23
Outline dimensions . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . .24
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Safety Read these instructions carefully before operating or
servicingthe equipment.In the interests of safety, this pump and
the hose selectedshould only be used by competent, suitably trained
personnelafter they have read and understood this manual, and
consid-ered any hazard involved.Any person who is involved in the
installation or maintenance ofthis equipment should be fully
competent to carry out the work.
Maximum rating for this lifting point (A)Model SPX40 SPX50 SPX65
SPX80 SPX100
Max. lbs 91 177 304 463 717
3
Lifting If the pump is to be lifted, ensure that all standard
lifting prac-tices are adhered to and carried out by qualified
personnel only.The pumphead without drive should be lifted using
the liftingpoint provided, mounted on the rear of the pumphead -
point A.
There are dangerous voltages inside the motor terminal box. If
access is required, isolate the pumpfrom the electrical supply
before removing thecover. Never operate the pump without the
pumpcover or shaft coupling guards in place. Do notplace any part
of the body inside the pump housingwhile the pump is operating.
Protect hands and facefrom possible aggressive product when
handling orexamining used pump hoses.
Do not use the motor or gearbox-lifting points to liftthe entire
pump set. These lifting eyes are rated forthe individual components
only.
A complete pump set with motor should be lifted by the
liftingpoint provided plus additional support using suitably
ratedstraps or slings. Do not exceed the rating of the lifting
point A.
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4Pump hoseThe pump hose liner material should be compatible with
the prod-uct to be pumped. If in doubt regarding fluid
compatibility pleasecontact your local Watson-Marlow/Bredel
representative. Hosesare available in several materials for
different applications.
* order codes are available on page 20
Identifier Material Hose I.D label Color codeNR Natural rubber
WHITE
NBR Buna N YELLOW
EPDM EPDM RED
NBRX Buna K GREEN
CSM Hypalon BLUE
SPX/25 0.50 gallons 2L
SPX/32 0.75 gallons 3L
SPX/40 1.30 gallons 5L
SPX/50 2.60 gallons 10L
SPX/65 5.30 gallons 20L
SPX/80 10.60 gallons 40L
SPX/100 15.80 gallons 60L
1 Outer layer: Natural rubber 2 Nylon reinforcing 3 Inner liner
options: NR, NBR,
EPDM, NBRX, Hypalon
Lubrication and coolingThe pump housing is filled with a
specially compounded foodgrade hose lubricant. The lubricant
performs as a coolant aswell as a lubricant and
Watson-Marlow/Bredel cannot acceptany responsibility for poor hose
life as a result of an incorrecthose lubricant used within the pump
housing.
Since the lubricant is specially compounded, it is
recommendedthat it be obtained from an official
Watson-Marlow/Bredel representative.
Lubricant quantity, required for each pump model (Table 1):
The minimum level is indicated on the inspection window forport
positions one and two only. For positions three and fourplease
follow the volumes given above.
Strong oxidizing substances are deemed incompatible
withWatson-Marlow/Bredel Hose lubricant. If your product consistsof
high concentration of an oxidizing substance, then pleasecontact
your Watson-Marlow/Bredel representative for analternative silicone
based hose lubricant.
At no stage should the lubricant come in contactwith any highly
concentrated oxidizing substancesas a potential hazard could
occur.
ShimsThe number of shims will vary for each application. (See
Technical Information section).
The shimming guide is for use with Watson-Marlow/Bredeloriginal
pump hoses. Watson-Marlow/Bredel hoses are con-structed with four
nylon reinforcement layers, each hose isprecision ground ensuring
close tolerances, performancerepeatability and superior surface
finish which improves hoselife. Watson-Marlow/Bredel cannot
guarantee the performanceof its product with any other hose make or
type.
Each pump has a number of loose shims supplied separatelywithin
the shipping carton.
Never reduce the shimming of the pump to limit thepressure
created by the pump. Insufficient com-pression of the hose, creates
a back stream of fluidin the hose and damages the inner
layer.Insufficient shimming seriously reduces hose life.
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Recommended installation guidelines points to observeFor maximum
hose life, the pump should be set up with thedelivery end of the
hose connected to the upper port of thepumphead.
DO keep delivery and suction lines as short and direct as
possible.
DO keep the piping "oversized", at a minimum equal to orgreater
than the bore size of the pump. Increase the bore size ofthe
pipework when the duty fluid has a high viscosity or high inertia.
This will help keep the friction losses to a minimum.
DO keep sharp bends and T sections to a minimum.
DO use Y junctions and long slow swept bends, minimum R = 4 to
5d.
DO keep the pump housing and pressing shoes clean.
DO fit a discharge pulsation damper and /or inlet pulse
accu-mulator when the product specific gravity and pump speed
ishigh and the line lengths are long.
The self-priming nature of peristaltic pumps means that
valvesare not required. If for whatever reason, valves are fitted
in tothe system they must have a straight fluid path and cause
mini-mum restriction to flow in the pumping circuit. If a valve is
fittedin the discharge line, ensure that a by-pass valve is fitted
toavoid premature hose rupture.
It is recommended that the pressure on the discharge of thepump
should not exceed 232 psi, or 109 psi for the SPX10 andSPX15 mini
pumps.
Installation commissioning the pumpn Ensure that the pump hose
liner material is compatible with
the product to be pumped.n Site the pump on a flat horizontal
surface allowing a free
flow of air around the pump. Bolt the pump down using
themounting points provided.
n Ensure there is 5 ft to 6.5 ft of straight flexible hose
beforethe suction and discharge ports, of not less than the
diame-ter of the hose bore. This will aid hose replacement
withoutthe need to break down transfer pipework.
n Check the breather on the rear of the pump is free from
anyobstruction. It is recommended that the breather/vent ispiped
away to a safe area if pumping hazardous products.
n Before commissioning drive gearboxes, ensure that thegearbox
breather/vent plug is free from obstruction, inorder to prevent
excessive pressure build up and oil leaks.
n Check to ensure the gearbox has been filled with oil or
grease.
n The motor should be connected by a qualified engineer,who is
fully conversant with the appropriate regulations.
n Motor insulation: Follow the guidelines issued by the
motormanufacturer. Details are given in the motor
informationprovided. Please note that this is separate to this
manual.
n Install a reversing switch to assist in cleaning and hose
exchange.
n Electrical motors - A current overload relay should also
befitted to a contact breaker. Connect the motor in accor-dance
with the wiring diagram, which will be found in themotor terminal
box.
n When a thermal protection switch is fitted in the motor,
theleads will be found in the motor terminal box. They shouldbe
connected to stop the pump if the switch operates. Seebelow for the
connection of the drive motor showing possi-ble ancillary switches
and protections.
All pumps, excluding those intended for use in
hazardousatmospheres, may be fitted with a Liquid Level Control
(LLC).This switch is rated 250V 1A AC maximum power load 50W.
Do not connect LLC or any other switch gear to theterminal box
of a explosion-proof motor unless theswitch has a suitable XP
rating for the zone area inwhich it is to be mounted.
Before operating the pumpCheck all pipe and clamp connections
for tightness. Ensure thatall inlet and discharge isolating valves
are open, since poten-tially dangerous or damaging pressures could
otherwise result.
5
1 Emergency stop 2 Start 3 Stop 4 Liquid level control 5
Spare
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Hose pumpsHose pumps have a pulsating flow that can result in
vibration of thepump and associated pipework under the following
circumstances:
n suction and discharge lines are not fixed correctly.n high
pump speed in combination with long suction and dis-
charge lines or high specific gravity of the product.n diameter
of suction and/or the discharge line is too small.n Severe
pulsation at the inlet side of the pump indicates
poor suction conditions.In the event that the pulsations become
unacceptable, pulsationdampers for both the suction and discharge
lines are availablefrom Watson-Marlow/Bredel. Please contact your
local Watson-Marlow/Bredel representative for details on our Inlet
PulsationAccumulators (IPA) or Pulsation Dampers (PD).
If in any doubt over the correct installation of your pump
con-tact your local Watson-Marlow/Bredel representative
forassistance. They are equipped with the latest windows
basedWatson-Marlow/Bredel Hose pumps selector program and canoffer
advice and recommendations on the installation layout,running
speeds, pipe diameters, etc, to give the optimum perfor-mance from
your Watson-Marlow/Bredel hose pump.
Cleaning the pump hoseThis can be done by running the pump with
clean water. If acleaning fluid is added to the water, attention
must be given toits compatibility with the hose liner material, and
also the tem-perature at which the cleaning procedure will be
performed.Sometimes a cleansing sponge can be very helpful.
With many products it is necessary to clean the pump
hoseimmediately once the pump is stopped, to avoid
solidificationand hardening of the product within the hose.
Hose replacementFor all weight, torque adjustment and shim
setting references,please refer to the Technical information
section at the rear ofthis manual.
Hose removalThe pump hose should be changed without removing the
pump cover.
1. Close the isolating valves on both the inlet and discharge
ofthe pump to minimize fluid loss.
2. Place a lubricant tray of sufficient capacity to contain
thehose lubricant plus any process fluid that might be con-tained
within the pump housing (this only applies if the hosehas failed)
underneath the drain plug located at the bottomof the pumphead.
6
3. Remove the drain plug. Ensure that the breather vent mount-ed
on the rear is not obscured. Allow lubricant to drain fromthe
pumphead.
4. Disconnect the suction and delivery lines.
5. Loosen the hose clamps on both the upper and lower ports.
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79. Slide off the sealing ring.10. Power out the hose from the
pump chamber by jogging the
drive motor.11. Ensure that the pump chamber is clean and remove
all
residues. Flush out the pump chamber, if necessary toremove any
contaminants.
12. It may be necessary to remove the pump cover at thisstage.
(see Pump cover removal).
13. Inspect the pump chamber and the rear rotor lubricant
sealfor any signs of damage or wear, replace if necessary.
14. Check the pressing shoes for signs of damage or wear.
Damaged shoes will cause insufficient hose compressionand a
reduction in hose life.
15. Check the shim settings and ensure that rotor is set to
giveoptimum performance and hose life for the duty required.
Cover removal
Ensure that the pump is completely isolated fromthe electrical
supply prior to opening the pumpcover. NEVER REMOVE THE PUMP COVER
WHILETHE HOSE IS IN PLACE. This can cause deformationof the pump
housing and shearing of the bolts onstart up.
If the pump cover is to be lifted ensure that all standard
lifting practices are adhered to and carried out by qualified
personnel only.
1. Isolate the pump from the electrical supply.2. Drain the hose
lubricant from the pump housing.3. Remove the hose.4. Remove the
pump cover retaining bolts.5. Lift the cover clear of the pump.
Cover replacement1. When replacing the pump cover, make sure
that the cover-
sealing quad ring is seated correctly within its groove.2.
Locate the cover using the four guide bosses.3. Refit the retaining
bolts.4. Tighten each bolt in sequence diagonally opposite to
each
other to the specified torque limits.
7. Loosen and remove the flange bracket-retaining bolts onboth
the upper and lower ports.
8. Slide the flange bracket and the hose clip off the hose.
6. Pull the inserts from the ends of the hose and remove the
flanges.
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Assembly - Hose loading
The hose sealing system is dependent on the closetolerances and
ground surface of Watson-Marlow/Bredel hoses, and no other hose
type ormake should be used since sealing cannot be guar-anteed. Any
leakage of lubricant through the sealcaused by using a
non-Watson-Marlow/Bredelhose could lead to hose or pump failure,
whichwould not be covered by warranty.
During hose loading, ensure that the pump housing cover andthe
inspection cover are securely in place. DO NOT LOAD HOSEWITHOUT
COVER IN PLACE.
1. Clean the outside of the pump hose and heavily lubricate
theexternal surface of the hose with the Watson-Marlow/Bredelhose
lubricant.
2. Insert the hose into the upper port and jog the drive
motor(CCW) to feed the hose into the pump chamber. Continue tojog
the hose until there is an equal portion of the hose protruding
from each port.
First assemble the lower port3. Slide the sealing ring on to the
hose.
If the sealing ring has been used before, inspect for damage and
replace if necessary.
4. Slide the flange bracket and the hose clamp over the hose
together.
5. Align the holes in the flange bracket with those in the
port
8
face, locate and tighten the four retaining bolts. At this stage
the bolts should be finger tight only - 0.20"(5mm) gap between the
bracket and the port face.
6. Position the flange and insert in the end of the hose.
7. Push the insert into the hose.Assembly tip: Apply a small
amount of hose lubricant to the lipof the insert. This will help
ease the insert into the hose.
8. Refit and secure the suction transfer pipework.9. Jog the
motor in the direction of the lower port to drive the
hose against the flange face. Ensure that the hose butts uphard
against the flange face and the insert is seated cor-rectly.
Leakage of the process fluid could occur if the insertis not seated
correctly.
10. Tighten the flange bracket retaining bolts to the
specifiedtorque setting.
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911. Position the hose clamp against the flange bracket and
tighten.
Assemble the upper port by repeating steps 3 to 10.
At this time, pump can be run for general mechanical function.Do
not run the pump without hose lubricant for anexcessive length of
time, irreversible hose damagecan result.
12. Replace the lubricant drain plug.
13. Refill the housing with Watson-Marlow/Bredel hose
lubri-cant, see Table 1 for the lubricant volume/capacity for
eachpump. Remove the upper plug at the front of the pumpheadto vent
pump housing. Ensure the level appears above theminimum level
indicated in the inspection window.
14. Check all pipe and clamp connections for tightness.
Never rotate or run the pump against a closed valve. The pump is
of a positive displacement typewhere potentially dangerous or
damaging pressurewill result.
ShimmingShimming is a simple operation that can be done through
thefront inspection window without removing the hose or the pump
cover.
Please refer to the individual pump shimming guide for the
cor-rect number of shims.
1. Jog the drive motor until the pressing shoe is positioned
inview of the inspection window.
2. Isolate the pump from the electrical supply.3. Place a
lubricant tray of sufficient capacity to contain 20 to
30% of the lubricant underneath the drain plug, located atthe
bottom of the pumphead.
4. Remove the drain plug. Ensure that the breather vent mount-ed
on the rear of the pump housing is not obscured. Partiallydrain the
lubricant from the pumphead - only part of thelubricant, 20 - 30%,
needs to be drained for shimming. (Justbelow the lower edge of the
inspection window itself.)
5. Loosen and remove the inspection window retaining bolts.6.
Remove the inspection window taking care not to damage
the gasket and sealing face.
7. Loosen the shoe retainer bolt (item 16) on the pressing
shoe.
4
8
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8. Count the number of shims fitted. If required, add or
removeshims as determined by the shimming guide.
9. Tighten the shoe retaining bolt to the specified limit.10.
Replace inspection window temporarily and rotate the
pump 180 to position 2nd shoe in view of the inspectionwindow.
Remove inspection window.
11. Repeat the procedure for the second pressing shoe.12. Check
the inspection window gasket for damage and
replace if necessary.13. Replace and secure the inspection
window ensuring that
all the bolts are replaced and tightened in sequence,
diago-nally opposite to each other, to the specified torque
limits.
14. Ensure that the drain plug is fitted and secure. 15.
Replenish the hose lubricant.
Periodic maintenance requirementsWatson-Marlow/Bredel planetary
gearbox
The planetary units do not require any specific
maintenanceprocedures: however it is necessary to plan periodic
inspec-tions to avoid any loss of efficiency in the unit.
Care must be given to the lubricating oil, and the oil level
shouldbe checked regularly and topped off as necessary.
Oil changes
An oil change must be carried out after the first 100 hours of
operation and subsequently after every 2500 hours, or at leastevery
12 months.
These intervals may be modified depending on the actual
operation conditions. During oil change, we recommend that
theinside of the gear case is flushed out with flushing fluid
recom-mended by the lubricant manufacturer.
Oil should be changed when hot to prevent build up of
sludgedeposit. It is advisable to check the oil level at least once
amonth. If more than 10% of the total oil capacity has to be
addedcheck for oil leaks. Fill to the center line.
10
Drain, oil level, breather filler plugs are fitted.
Continuous working temperature must not exceeded 90C (195F).
Avoid mixing oils of different types even of thesame
manufacture. Never mix mineral and syntheticoils. If in doubt,
change the oil completely. Payattention to oil and gear temperature
during an oilchange, to avoid the risk of scalding.
Drain plug
Oil level plug
Breather endfilling plug
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11
Materials of construction
* option of stainless steel available
Paint specification - standardn Primer - two pack epoxy primer
dry thickness
30 microns (2240)n Top coat - two pack polyurethane dry
thickness 30 micronsn Gloss finish 60% reflectionFor Rilsan and
Halar paint specification please consult yourWatson-Marlow/Bredel
representative
Specification
TroubleshootingProblem: Failure to operate
Problem: High pump temperature
Description MaterialPump housing High quality cast iron GG25
Cover Commercial grade mild steel 37
Pump rotor High quality cast iron GG25
Rotor shoes Epoxy
Frame Mild steel, galvanized to 15 microns minimum*
Hose connector brackets Mild steel, galvanized to 15 microns
minimum*
Cover fixings Mild steel, galvanized *
Motor fixings Mild steel, galvanized *
Frame fixings Mild steel, galvanized *
Seals and glands Neoprene or Nitrile
Control range See drive specification label
Voltage/frequency See motor specification label
Power rating See motor specification label
Operating temperature range -10C to 40C
Storage temperature range -40C to 70C
Noise 74dB(A) at 1m
Standards IEC 335-1, EN60529 (IP55)
Machinery Directive 89/392/EEC EN60204-1
Low Voltage Directive 73/23/EEC EN61010-1
EMC Directive 89/336/EEC EN50081-1/EN50082-1
Possible Cause CorrectionNo power supply to the pump Check that
the supply power
switch is on.
Check the electrical supply is available at the pump.
Stalled rotor Check that the pump is not stalled by incorrect
fitting of the hose.
If a liquid level control is fitted, check that it is functional
and has not stopped the pump.
Possible Cause CorrectionNon standard hose Consult your
lubricant used Watson-Marlow/Bredel
representative to obtain the correct hose lubricant.
Low lubricant level Consult the lubricant chart and add the
correct volume.
Product temperature too high Consult your Watson-Marlow/Bredel
representative regarding the maximum temperature capability for the
pump.
Internal friction on the hose Check pipework/valves forcaused by
blocked or poor blockages. Ensure that the suction characteristics
suction pipework is as short
and as large in diameter as is feasible.
Over-shimming of the Check shimming guide. Removepump rotor
shoes excess shims.
High pump speed Reduce pump speed to a minimum. Consult with
your Watson-Marlow/Bredel pumpsupplier for advice on optimumpump
speeds.
Improper hose loading Ensure hose was loaded with housing cover
in place and all procedures for hose replacement were followed.
Remove and reload hose, if necessary.
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12
Possible Cause CorrectionSuction/discharge Open
suction/discharge.valve closed
Under shimming of the rotor Consult the shimming guide and
pressing shoes add the correct number of shims.
Hose failure or badly Replace hose.worn hose
Partial blockage of the Ensure that the suction is clear suction
line or no product of blockages and the sufficient in the suction
vessel product is available.
Incorrect pump selection Consult your Watson-Marlow/Bredel
representative for assistance.
High pump speed Consult your Watson-Marlow/Bredel representative
for assistance.
Excessive suction or Consult your discharge line lengths
Watson-Marlow/Bredel
representative for assistance.
High product viscosity Consult your Watson-Marlow/Bredel
representative for assistance.
Possible Cause CorrectionSuction and discharge Check and secure
pipework. lines are not secured correctly
High pump speed with long Reduce pump speed. Reduce the suction
and discharge lines line lengths on both suction and or high
product specific discharge where possible. gravity or a combination
Consult your
Watson-Marlow/Bredel representative for a recommendation.
Under sized suction and/or Increase the diameter of the
discharge pipework suction/discharge pipework.
Problem: Vibration and hammering of the pump installation and
pipework
Problem: Broken front cover bolts
Possible Cause CorrectionRemoval of the pump cover Remove the
pump hose in with the hose installed position before removing
the
pump cover.
Possible Cause CorrectionChemical attack of Check chemical
compatibility of the rubber the hose materials with the duty
or cleaning fluid. Consult your Watson-Marlow/Bredel
representative for correct hose selection.
High pump speed Reduce pump speed
High discharge pressures Reduce discharge pressure. It is
recommended that the pressure on the discharge of the pump should
not exceed 16 bar. If any hose failure appears to be a burst, the
discharge line should be carefully checked for blockages, closed
valves or failing pressure relief valves.
High product temperature Consult your Watson-Marlow/Bredel
representative for correct hose selection. Temperature limits are
given in the Technical section.
High pulsations Restructure the discharge and inlet conditions.
Consult your Watson-Marlow/Bredel representative for
assistance.
Problem: Short hose life
Possible Cause CorrectionInsufficient or no hose Consult the
lubricant chart lubricant in the and add the correct volume.pump
housing
Incorrect lubricant Consult your Watson-Marlow/Bredel
representative to obtain the correct hose lubricant.
Hose clamps are not Torque the clamps to the tightened to the
correct settings.specified limits
Extremely high inlet Reduce the inlet pressure.pressure -
greater than 43.5psi
Hose blocked by an Remove hose, check forincompressible object
in the blockages and replace hose. The hose cannot be if necessary.
compressed and will be pulled into the pump housing.
Problem: Hose pulled into the pump housing
Troubleshooting (continued)Problem: Low capacity/pressure
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SPX maintenancePumphead disassembly
1. Remove hose.2. Isolate the pump from the electrical supply.3.
Remove front cover to expose the pump housing and the rotor.
4. Remove the drive shaft retaining bolts and extract the
driveshaft, take care not to damage the O-ring seal on the rearof
the drive shaft.
5. Remove the rotor retaining ring, external type.
13
Possible Cause CorrectionIncorrect hose fitted Check that a
genuine
Watson-Marlow/Bredel Hose is fitted. If in doubt please contact
your Watson-Marlow/Bredel representative.
Damaged sealing ring Replace sealing ring.
Flange bolts loose Tighten to the specified torque settings.
Problem: Hose lubricant leaking at flange bracket
Possible Cause CorrectionDamaged rotor Replace during the next
lubricant seal scheduled maintenance or
hose change.
Problem: Hose lubricant leakage from the rear of the pumphousing
"Buffer zone"
6. Extract the rotor complete with pressing shoes from thehub. A
suitable puller or similar extraction tool will berequired during
this stage of the disassembly.
Under no circumstances try to lever the rotor off, using thepump
housing as a pivot point.
A strap or similar lifting device must support theweight of the
rotor at the removal stage. (see section for rotor weights).
Hub hose lubricant seal replacement
With the rotor removed the hub seal is now accessible.
1. Remove the retaining ring.2. Extract the seal. Discard and
fit the replacement. The fitting
of the seal should be carried out in accordance to the
manufacturers instruction and ensure that best practicesare adhered
too.
3. The seal must be fitted in the correct orientation. If a
single lip seal is fitted ensure that the gaiter spring is facing
outward (towards the front of the pump).
-
Hub removal
1. Remove the gear drive from the rear of the pump.2. Loosen and
remove the hub retaining bolts.3. Remove the hub taking care not to
damage the sealing
O-ring on the rear. The hub is located on a dowel so a knock
with a raw hide mallet on the rear of the hub may be necessary.
4. The hub is a solid casting and a heavy component, so caremust
be taken on its removal.
A strap or similar lifting device must support theweight of the
hub at the removal stage. (see section for rotor weights).
Pump head assembly
1. Insert the hub into the pump housing ensuring the
sealingO-ring is fitted and in place.
Assembly tip - use a small quantity of silicone grease tosecure
the O-ring in place.
2. The hub locates on to a dowel for correct hub alignment,align
the dowel with the hole in the hub and push home.
3. Refit the bolts and tighten each bolt diagonally opposite
toeach other to the specified torque setting.
4. Check rotor hub seal for any signs of damage and replace if
necessary.
5. Ensure the hub is clean and free from grease.6. Refit the
rotor, the bearings are a slight interference fit on
the hub and a pressing tool may be required to press therotor on
to the hub.
Note: Ensure that the spacer ring between the two rotor
bear-ings is aligned in the correct position as it is possible that
it candrop and foul the hub, which will prevent the rotor seating
cor-rectly on the hub. Rotor is correctly seated, when the
retainingring groove is clearly visible on the end of the hub.
7. Refit the rotor retaining ring - external type.8. Heavily
grease the drive shaft spline with a graphite-loaded
grease or a similar compound. 9. Ensure the mating faces are
clean, dry and free
from lubricant.10. Ensure the sealing O-ring on the rear mating
face is free
from damage and seated correctly. 11. To refit the drive shaft
it may be necessary to align the
splines with those in the gearbox.12. Align the holes in the
drive shaft with those within the rotor
and refit the retaining bolts.13. Tighten each bolt diagonally
opposite to each other to the
specified torque setting.14. Check that the pump housing is
clean and free from
any debris.15. Refit the cover plate.
14
Rotor bearing replacement
1. Remove the rotor from the pump.2. Lay on a flat surface with
the wear ring face up.3. Remove the bearing retaining ring -
internal type.4. Turn the rotor over, with the rotor-supported face
up,
the bearing must be extracted in the direction of the retaining
ring groove.
5. Using a suitable press remove the bearings from the rotor.6.
Retain the spacer ring and discard the old bearings.
Bearing replacement - rotor
1. Ensure the bores are clean and free from grease and dirt.Do
not use abrasive paper.
2. Press the first bearing into position.3. Refit spacer ring.4.
Insert the second bearing.5. Refit the retaining ring.
Rotor wear ring - removal
1. Remove the rotor from the pump.2. Support the rotor off the
bench with wooden blocks at 90
degrees to the spokes, with the ring facing down 40mmfree from
the bench.
3. Using a suitable punch or drift, in a clockwise order,
position the tool in the recesses provided and strike therear edge
of the wear ring.
4. Continue in clockwise rotation until the ring is free from
the rotor.
5. Care must be taken not to damage the seating face of the
rotor.
Rotor wear ring replacement
1. Ensure the seating for the ring is clean, dry and free
fromany burrs or damage.
2. Position the ring with the tapered edge facing up.3. Cover
the ring with a hard wood block.4. Using a suitable press, press
the ring until the rear edge
butts against the rotor, and the front edge is flush with theend
of the rotor.
-
15
Shoe removal and shim access
1. The removal and access to these components can begained via
the inspection window mounted on the frontcover. Disassembly of the
pump is not required.
Drive removal
The drive can be removed without the need to disassemble
thepumphead, hose or pipework.
1. Isolate the pump from the electrical supply.2. Support the
drive using either the individual lifting points on
the gearbox and motor or by the means of suitably ratedlifting
straps.
3. Loosen and remove the cap head bolts that secure thegearbox
to hub at the rear of the pumphead.
4. Withdraw the gearbox from the pumphead and lift the drivefree
from the pump.
5. It is recommended that any servicing of the drive compo-nents
other than that given in the user manual is carried out by the
manufacture and should not be attempted by the customer.
Drive assembly
1. Heavily grease the drive shaft spline protruding from thepump
with a graphite-loaded grease or similar compound.
2. Lift the drive into position align the spline of the drive
shaftwith the female spline of the gearbox and slide the
gearboxinto position.
3. Align the gearbox holes with those in the pump
housing,ensuring that the gearbox breather, drain and filler
plugsare in their correct positions. Consideration should also
begiven to the position of motor terminal box.
4. Refit the cap head bolts and tighten each bolt
diagonallyopposite to each other to the specified torque setting
(ISOgrade 10.9 or higher).
5. Check the gearbox lubricant level and top off if necessary.6.
Ensure that the gearbox breather is free from any
obstruction.7. Reconnect the electrical supply, a qualified
engineer, who
is fully conversant with the appropriate regulations,
shouldcarry out this task.
-
16
Pos Qty Description SPX40 SPX50 SPX65 SPX80 SPX1001 1 Pump
Housing 240101 250101 265101 280101 2001012 1 Dowel Pin F415082
F415082 F415082 F416121 F4161213 1 Quad Ring 240123 250123 265123
280123 2001235 2 Rivet, round head F420008 F420008 F420008 F420008
F4200086 2 Plug, ext. hex. head F901006 F901006 F901006 F901008
F9010087 2 Plug, int. hex. head F911006 F911006 F911006 F911008
F9110088 4 Packing Ring F342035 F342035 F342035 29056244 290562449
1 Breather 29110146 29110146 29110146 29125146 29125146
11 1 Breather Cap 29065223 29065223 29065223 080151 08015112 1
Coupling, straight F602006 F602006 F602006 F602008 F60200813 1
Rotor 240103 250103 265103 280103 20010314 2 Pressing Shoe 240109
250109 265109 280109 20010915 12 Shim 240107 250107 265107 280107
20010716 2* Bolt, hex. head F101058 F101082 F101085 F101131
F10113217 2* Washer, spring lock F329013 F329015 F336013 F336015
F33601518 2 Bearing B141460 B142060 B142060 B142460 B14246019 1
Spacer, outside 29110201 29150201 29151201 29180201 2918120121 1
Retaining Ring F344077 F344087 F344087 F344093 F34309322 1 Wear
Ring 29140202 29180202 29180202 29240202 2924020223 1 Hub 240203
250203 265203 280203 20020324 8 Bolt, hex. head F111098 F111098
F111132 F111186 F10112525 8 Washer, spring lock F329013 F329013
F336013 F336015 F33601526 1 O-ring S122641 S122711 S122711 S122771
S12280127 1 Seal S212811 S213611 S213611 S214811 S21481128 1
Retaining Ring F343056 F343071 F343071 F343075 F34307530 1 Drive
Shaft 240104 250104 265104 280104 20010431 8* Bolt, hex. head
F111073 F111098 F111132 F111184 F11118432 8* Washer, spring lock
F329011 F329013 F336013 F336015 F33601533 1 O-ring S122431 S122541
S122541 S122611 S12261134 1 Cover Plate 240102 250102 265102 280102
20010235 14 Bolt, hex. head F111096 F111130 F111182 F111182
F11121836 14 Washer, plain F322013 F322015 F322017 F322017
F32201937 1 Inspection Cover 240155 250155 265155 280155 20015538 8
Bolt, hex. head F111042 F111074 F101038 F101038 F10104039 8 Washer,
plain F322009 F322012 F322012 F322012 F32201240 1 Gasket 240156
250156 265156 280156 20015641 2 Bracket 240197A 250197A 265197A
280197A 200197A42 8 Bolt, hex. head F111093 F111098 F111016 F111128
F11113043 8 Washer, spring lock F329013 F329013 F336012 F336013
F33601344 2 Flange, 150# ANSI 040198A 050198A 065198A 080198A
200198A45 2 O-ring 240210 S112371 S112431 S112501 S11257146 2 Hose
Clamp C101021 C101045 C101049 C101051 C10105447 1 Support, left
240106A 250106A 265106A 280106A 200106A48 1 Support, right 240106B
250106B 265106B 280106B 200106B49 6 Bolt, hex. head F111096 F111098
F111132 F111186 F11118450 6 Washer, spring lock F322013 F329013
F336013 F336015 F32901851 1 Lifting Strip 29150161 2915016163 1
Bolt, hex. head F111096 F11109664 1 Washer, spring lock F322013
F32201365 1 Hose Refer to page 2066 2 Insert Refer to page 20
Spares
For Pos 31 and 32, the quantity for SPX65, SPX80 and SPX100 is
12.For Pos 16 and 17, the quantity for SPX65, SPX80 and SPX100 is
4.
-
17
-
18
Pump type SPX40 SPX80 SPX65 SPX80 SPX100
Pressing shoe
Thread M10 M12 M12 M16 M16
Torque In-lbs 443 752 752 1859 1859
A/F mm 17 19 19 24 24
Inspection window*
Thread M6 M8 M8 M8 M8
Torque In-lbs 18 27 27 27 27
A/F mm 10 13 13 13 13
Pump cover
Thread M10 M12 M16 M16 M20
Torque In-lbs 443 752 1859 1859 3540
A/F mm 17 19 24 24 30
Hose clamp
Thread M8 M10 M10 M10 M10
Torque In-lbs 221 354 354 354 354
A/F mm 13 17 17 17 17
Flange Bracket
Thread M8 M10 M10 M12 M12
Torque In-lbs 221 443 443 752 752
A/F mm 13 17 17 19 19
Drive shaft bolts
Thread M8 M10 M12 M16 M16
Torque In-lbs 221 443 752 1859 1859
A/F mm 13 17 19 24 24
Hub retaining bolts
Thread M10 M10 M12 M16 M16
Torque In-lbs 443 443 752 1859 1859
A/F mm 17 17 19 24 24
Support bracket retaining bolts
Thread M10 M10 M12 M16 M16
Torque In-lbs 443 443 752 1859 1859
A/F mm 17 17 17 24 24
Gear drive bolts
Thread M8 M12 M12 M12 M14
Torque In-lbs 221 752 752 752 1195
A/F mm 13 19 19 19 22
Torque settings
-
19
Pump Model
SPX40 SPX50 SPX65 SPX80 SPX100
Net weight of pump 258 478 860 1493 2251
Weight of the gearbox Please refer to the manufacturer's
specification plate
Weight of the motor Please refer to the manufacturer's
specification plate
Weight of rotor assembly 35 71 116 216 335
Weight of pressing shoes (pair) 4 9 17 29 55
Weight of pump cover 35 68 141 236 434
Weight of pump housing 97 176 344 520 783
Weight of the drive shaft 7 15 19 39 44
Weight of hub 24 37 45 88 123
Dimension pump hose 1.57 x 2.60 1.97 x 3.15 2.56 x 3.90 3.15 x
4.72 3.94 x 5.67 (ID x OD x Length) 58.7 71.6 91.9 109.4 128.9
Weight of pump hose 8 13 23 45 66
Quantity hose lubricant 1.3 2.6 5.3 10.6 15.8
Weight in pounds, Dimensions in inches.
SG lubricant = 1.26
Net weight pump including hose, hose lubricant, supports no
crate.
Weights
-
20
Model NR NBR EPDM NBRX CSM(Buna N) (Buna K) (Hypalon)
SPX25 025020 025040 025075 025060 025070
SPX32 032020 032040 032075 032060 032070
SPX40 040020 040040 040075 040060 040070
SPX50 050020 050040 050075 050060 050070
SPX65 065020 065040 065075 065060 065070
SPX80 080020 080040 080075 080060 080070
SPX100 100020 100040 100075 100060 100070
HosesHose product codes:
Natural rubber
Always the first choice hose. A highly dynamic material whichhas
excellent abrasion resistance and mechanical strength, and is
generally resistant to diluted acids and alcohols.
Maximum liquid temperature 80C (175F) Minimum temperature - 20C
(-70F).
Buna N (NBR) - Acrile Nitrile Butadiene rubber
A highly abrasion proof and wear resistant material that is
gen-erally resistant to oils, fats, alkalines and detergents.
Suitablefor a wide range of food handling and meets FDA and 3A
standards.
Maximum liquid temperature 80C (175F) Minimum temperature - 10C
(-50F).
EPDM
Good chemical resistance especially to concentrated
acids,ketones and alcohols.
Maximum temperature 80C * (175F) Minimum temperature - 10C
(-50F).
*Consult Watson-Marlow/Bredel technical services for detailson
higher temperature operation, up to 90C, with these hoses.
Buna K (NBRX)
A variation of Buna N, is more compatible with certain
animalfats and hydrocarbons such as hexane, although less
impervi-ous to process conditions.
Maximum liquid temperature 60C (140F)Minimum temperature - 10C
(20F).
Hose Lubricant:
500143001 1 gallon
500143006 5 gallon
500143007 55 gallon
500143004 1 gallon silicone
Model 316SS PVC Polypropylene PVDFSPX40 240186 240187 240189
240190
SPX50 250186 250187 250189 250190
SPX65 265186 265187 265189 265190
SPX80 280186 280187 280189 280190
SPX100 200186 200187 200189 200190
Insert product codes:
-
21
-20C/+5C +5C/+30C +30C/+50C -30C/+65CIV 95min IV 95min IV 95min
IV 165min
ISO 3448 VG 100 VG 150 VG 320 VG 150 - 220
AGIP Blasia 100 Blasia 150 Blasia 320 Blasia S 220
ARAL Degol BG 100 Degol BG 150 Degol BG 320 Degol GS 220
BP MACH GR XP 100 GR XP 150 GR XP 320 Enersyn HTX220
CASTROL Alpha Sp 100 Alpha Sp 150 Alpha 320 Alpha SN 150
CHEVRON non leaded gear non leaded gear non leaded gear Compound
100 Compound 150 Compound 320
ESSO Spartan EP 100 Spartan EP 150 Spartan EP 320 Excolub
SLG
Q8 Goya 100 Goya 150 Goya 320 El Greco 220
I.P. Mellana 100 Mellana 150 Mellana 320 Telesia Oil 150
MOBIL Mobilgear 627 Mobilgear 629 Mobilgear 632 Glygoyle
22Glygoyle 30SHC 630
SHELL Omala oil 100 Omala oil 150 Omala oil 320 Tivela Oil
TOTAL Carter EP 100 N Carter EP 320 N Carter EP 320 N
KLUEBER Lamora 100 Lamora 320 Lamora 320 Synteso D220 EP
ELF Reductelf Sp 100 Reducelf SP 150 Reductelf 320 Elf ORITIS
125 MSElf Syntherma P 30
Planetary gearbox lubricant
-
22
Anti Friction Type of Ambient ISO Viscosity KloberBearings
Lubricant Temp. C Class ARAL BP CASTROL DEA ESSO Lubrication Mobil
Shell TRIBOL
Grease -30.60 Aralub Energrease LZV -EP Glissnado 30
Mehrzweckgett Centoplex 3 Mobilux 3 Shell Alvania Tribol
3030(mineral oil base) HL 3 LS 3 Glissando 20 Beacon 3 Fett G3 o.
R3
Aralub Energrease Mehrzweckgett Centoplex 2 Mobilux 2 Shell
Alviana TribolHL 2 LS 2 Beacon 2 Fett G2 o. R2 4020/220-2
*-50.110 Aralub Glissando Unirex Molub-AlloyBAB EP 2 FT 3 Lotemp
EP 3780
Synthetic Grease * -50.110 Aralub Product 783/46 Discor 8 -EP 2
Beacon 325 Isoflex Mobiltemp Aero Shell TribolSKL 2 Topas NB52 SHC
32 Grease 4747/220-2
16 oder 7
Bearing lubricants
Note: Synthetic and mineral lubricants must not be mixed. *With
ambient temperatures below - 30C and above approx. 60C, shaft
sealing rings of a special material quality must be used.
-
23
Shimming
0kPa0kPa - 0bar
0kPa - 0bar
0kPa - 0bar
0kPa - 0bar
0kPa - 0bar0kPa - 0bar
7
6
5
4
3
2
1
00 20 40 60 80 100 120 140 160
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi
1600kPa - 16bar - 232psi1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi
1250kPa - 12.5bar - 181 psi1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi
1000kPa - 10bar - 145 psi750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi
750kPa - 7.5bar - 109 psi500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi
500kPa - 5bar - 72.5 psi250kPa - 2.5bar - 36 psi
250kPa - 2.5bar - 36 psi
250kPa - 2.5bar - 36 psi
250kPa - 2.5bar - 36 psi
250kPa - 2.5bar - 36 psi
250kPa - 2.5bar - 36 psi
250kPa - 2.5bar-36 psi
7
6
5
4
3
2
1
00 20 40 60 80 100
7
6
5
4
3
2
1
00 10 20 30 40 50
# ofShims
RPM
SPX25
# ofShims
RPM
SPX50109876543210
0 20 40 60 80
# ofShims
RPM
SPX65 109876543210
0 10 20 30 40 50 60
# ofShims
RPM
SPX80
# ofShims
RPM
SPX100
5
4
3
2
1
00 20 40 60 80 100 120 140
# ofShims
RPM
SPX326
5
4
3
2
1
00 20 40 60 80 100 120
# ofShims
RPM
SPX40
Number of shims to be rounded off upwards.
When fluid temperature is in excess of 140F (60C), reduce
thenumber of shims indicated on the charts by one.
When the maximum suction capacity is required, the pumpshimming
must be set for a minimum 72.5 psi (5 bar) counterpressure at
corresponding speed.
-
24
DimensionsSPX40
-
25
SPX50
-
26
SPX65
-
27
SPX80
-
28
SPX100
-
29
The information contained in this document is believed to
becorrect but Watson-Marlow/Bredel Pumps accepts no liabilityfor
any errors it contains, and reserves the right to alter
specifications without notice.
Watson-Marlow, Inc.220 BALLARDVALE STREET, WILMINGTON, MA
01887TEL: 800-282-8823, 978-658-6168 / FAX:
978-658-0041http://www.watson-marlow.com http://www.bredel.com
A member of the Spirax-Sarco Engineering Group
-
30
NOTES
-
31
NOTES
-
32
NOTES