bomba bredel spx

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

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

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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.

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







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.

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.

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1 Emergency stop 2 Start 3 Stop 4 Liquid level control 5 Spare

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.

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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.

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.

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

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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.

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.

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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.

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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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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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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

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.

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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.

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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.

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*


Torque In-lbs 18 27 27 27 27

A/F mm 10 13 13 13 13

Pump cover


Torque In-lbs 443 752 1859 1859 3540

A/F mm 17 19 24 24 30

Hose clamp


Torque In-lbs 221 354 354 354 354

A/F mm 13 17 17 17 17

Flange Bracket


Torque In-lbs 221 443 443 752 752

A/F mm 13 17 17 19 19

Drive shaft bolts


Torque In-lbs 221 443 752 1859 1859

A/F mm 13 17 19 24 24

Hub retaining bolts


Torque In-lbs 443 443 752 1859 1859

A/F mm 17 17 19 24 24

Support bracket retaining bolts


Torque In-lbs 443 443 752 1859 1859

A/F mm 17 17 17 24 24

Gear drive bolts


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

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