Sulzer ABS AFP Pumps
Spare Parts for ABS AFP Submersible Sewage Pumps
Product Summary
Spare parts for the Sulzer ABS AFP submersible sewage pump, the predecessor of the XFP that is still working hard in Australian council sewage pump stations, treatment plant inlets and industrial sumps. AFP pumps are no longer built but their wear parts are still needed, so tick what you need and we’ll match them to your nameplate, such as AFP 1041 M90/4.
Spare Parts List
✓ Tick the parts you need. AFP wear parts are matched to the hydraulic number, the motor (M or ME series, kW and poles) and whether the pump has a cooling jacket, so the type code and serial number on your nameplate are all we need. Not sure which items? Add a photo of the nameplate and we’ll work it out for you.
| Select | Wear / Service Item | Function & when to replace |
|---|---|---|
| Common Service Kits | ||
| Impeller | The ContraBlock, vortex or closed multi-channel impeller. Replace if the vanes are worn, chipped or cracked, or if flow stays low after the wear clearance has been reset. | |
| Bottom Plate / Wear Rings | The adjustable ContraBlock bottom plate, or the volute and impeller wear rings on closed-channel hydraulics. Replace when the clearance can no longer be closed up, or the parts are grooved or cracked. | |
| Mechanical Seal Set | The silicon carbide medium-side seal and the motor-side seal (a lip seal on some smaller builds). Replace on a DI leakage alarm, water in the oil, or at overhaul; seals are not reused once removed. | |
| O-ring & Gasket Set | Housing O-rings, cable entry seals and plug seal rings. Renew whenever the pump is opened, especially on older units where elastomers have hardened. | |
| Seal Chamber Oil / Coolant | Fresh oil for the seal (oil) chamber, or water/glycol for AFP units with a closed cooling jacket. Change after a DI alarm, after any seal repair, or if the oil is milky. | |
| Other Core Parts | ||
| Power & Control Cable | Submersible motor cable with sensor cores. Replace if the sheath is cut, crushed or perished, or water has wicked into the connection chamber; old AFP cables are often past their best. | |
| Bearings (Upper & Lower) | Lubricated-for-life motor bearings. Replace if the pump is noisy, vibrating or tripping on bearing temperature (where fitted), and at any seal overhaul. | |
| Volute (Pump Casing) | The cast volute with its wear ring or bottom plate seat. Replace if eroded, cracked or badly corroded. | |
| Leakage Sensor (DI) & Thermal Sensors | Moisture probes for the oil, motor and connection chambers and the stator (and bearing) temperature sensors. Replace if a probe reads low with clean oil, or a sensor is open-circuit. | |
| Cooling Jacket Parts | Cooling jacket seals and fittings for dry-installed or partly submerged AFP pumps. Replace if the jacket leaks or the coolant is contaminated. | |
| Pedestal Bracket & Seal | The coupling bracket and seal that dock the pump on its pedestal. Replace if the joint leaks back into the well or the guide claw is worn. | |
| Complete Replacement Pump | When a rebuild doesn’t stack up, we quote the modern XFP equivalent of your AFP, fitted with a Sulzer adapter bracket to suit your existing pedestal and guide rail. | |
How we confirm the exact part: AFP parts depend on the hydraulic number, impeller type and diameter, the motor (series, kW and poles), the seal arrangement and whether a cooling jacket is fitted. Your nameplate carries the type code (e.g. AFP 1041 M90/4), article number and serial number, which together pin down the build. Tick the items above and add a nameplate photo, and we’ll confirm the correct parts for your pump.
Models
Spare parts are sourced for AFP hydraulics still in service. The first two digits after AFP on your nameplate (e.g. AFP 1041) give the discharge size in cm, and the last two are the hydraulic number.
Models & Key Specifications
| Hydraulics | Impeller | Discharge | Motor |
|---|---|---|---|
| AFP 0831 – 1533 (3x) | Vortex | DN80 – DN150 | by size (M / ME series) |
| AFP 0841 – 2046 (4x) | ContraBlock with bottom plate | DN80 – DN200 | by size (M / ME series) |
| AFP 4003 / 5002 / 6004 | 3-channel, closed | DN400 – DN600 | M8, 160 – 550 kW |
| AFP 6003 | 3-channel, open | DN600 | M8, 160 – 550 kW |
| AFP 8001 | 5-channel, open | DN800 | M8, 160 – 550 kW |
Max. liquid temperature 40 °C. Stator bimetal thermal limiters as standard, leakage sensors (DI) in the oil, motor and connection chambers on M8 builds, and lubricated-for-life bearings. Max. starts per hour: 20 up to 10 kW, 15 from 11 to 160 kW, 10 above 160 kW. The AFP has been replaced in the Sulzer range by the XFP.
Troubleshooting
Pump locked out on a seal (DI) leakage alarm
Likely cause: water past a worn lower mechanical seal or a hardened O-ring, or moisture in the motor or connection chamber via the cable entry. Action: drain and check the oil for water, check the cable entry, and renew the mechanical seals, O-rings and oil. On an old AFP, check the cable at the same time.
Tripping on the thermal sensors
Likely cause: overheating from blockage, low liquid level uncovering the motor, too many starts per hour, or low voltage or a lost phase. Action: let it cool, then check the stop level, supply and current draw; keep within the starts-per-hour limit and clear any blockage.
Low flow or head
Likely cause: worn impeller, a wide bottom plate gap or worn wear rings, wrong rotation, or a partly closed valve. Action: reset the bottom plate gap or check wear ring clearance; replace the impeller and bottom plate or wear rings if they are worn out, and confirm rotation and valve positions.
Ragging and repeat blockages
Likely cause: modern wipes and fibrous loads that older AFP hydraulics were not designed for, made worse by an open impeller clearance. Action: clear the impeller and reset the clearance; if blockages are frequent, look at replacing the pump with an XFP fitted with a ContraBlock or chopper impeller.
Noise, vibration or high bearing temperature
Likely cause: worn bearings after many years in service, a damaged or unbalanced impeller, or wrong rotation. Action: check the impeller and rotation; if the noise remains, overhaul the bearings and seals together in a workshop.
Motor running hot when dry-installed
Likely cause: a non-cooled AFP being run out of liquid, or a cooling jacket that has lost coolant. Action: dry-installed AFP pumps need a cooling jacket; top up or replace the coolant, check the jacket seals, and confirm the pump suits the installation.
Request for Quotation
Selected Parts:
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Not sure which parts? Just send a photo of the nameplate or part below.