Mouvex A55 Eccentric Disc Pump
Spare Parts for the Mouvex A55 A (A Series) Eccentric Disc Pump
Product Summary
Genuine OEM spare parts for the Mouvex A55 A eccentric disc pump, used for fuels and oils, solvents, paints, resins and food oils up to 53 m³/h. Seal sets, the piston and cylinder pair, bushings, slide block, mechanical seals and the main castings are listed below by their Mouvex reference.
Spare Parts List
✓ Tick the parts you need. References are as printed in the Mouvex parts list for this model; material and build options (FKM or FEP-FKM seals, heat-jacketed HT versions, bushing type) each have their own reference. Not sure? Add a nameplate photo and we’ll match the parts for you.
| Select | Part (as printed by Mouvex) | Mouvex reference |
|---|---|---|
| Service kits & seal sets | ||
| Set of Screws-seals (piston Inspection) – FEP-FKM | Ref. AUX317063 · maintenance kit · PL 1012-E01 | |
| Set of Screws-seals (piston Inspection) – FKM | Ref. AUX317062 · maintenance kit · PL 1012-E01 | |
| Set of FEP-FKM O-Ring Seals | Ref. AUX317066 · maintenance kit · PL 1012-E01 | |
| Set of FKM O-Ring Seals | Ref. AUX317065 · maintenance kit · wear part · PL 1012-E01 | |
| Cylinder, Complete – FEP-FKM | Ref. AUX315146 · maintenance kit · PL 1012-E01 | |
| Cylinder, Complete – FKM | Ref. AUX315145 · maintenance kit · wear part · PL 1012-E01 | |
| Complete Piston – Bronze Bushing | Ref. AUX317067 · maintenance kit · PL 1012-E01 | |
| Complete Piston – Carbon Bushing | Ref. AUX315237 · maintenance kit · wear part · PL 1012-E01 | |
| Mechanical Seal – MS C S FEP-FKM D45 | Ref. AUX317071 · maintenance kit · PL 1012-E01 | |
| Mechanical Seal – MS C S FKM D45 | Ref. AUX316403 · maintenance kit · PL 1012-E01 | |
| Mechanical Seal – MS T T FEP-FKM D45 | Ref. AUX317072 · maintenance kit · PL 1012-E01 | |
| Mechanical Seal – MS T T FKM D45 | Ref. AUX316159 · maintenance kit · wear part · PL 1012-E01 | |
| Shaft Seals Standardized in ACCORDANCEM7N 45 C CSSF | Ref. AUX316650 · maintenance kit · wear part · PL 1012-E01 | |
| Shaft Seals Standardized in ACCORDANCEM7N 45 C CSCSF | Ref. AUX316652 · maintenance kit · wear part · PL 1012-E01 | |
| Shaft Seals Standardized in Accordance M7N 45 C CSSP | Ref. AUX319793 · maintenance kit · wear part · PL 1012-E01 | |
| Shaft Seals Standardized in Accordance M7N 45 C CSCSP | Ref. AUX319794 · maintenance kit · wear part · PL 1012-E01 | |
| Bearing Screws and Gasket Set – FEP-FKM | Ref. AUX316542 · maintenance kit · PL 1012-E01 | |
| Bearing Screws and Gasket Set – FKM | Ref. AUX316541 · maintenance kit · wear part · PL 1012-E01 | |
| Wear parts | ||
| O-Ring – FKM | Ref. AUX227818 · wear part · PL 1012-E01 | |
| O-Ring – FEP-FKM | Ref. AUX227819 · wear part · PL 1012-E01 | |
| Slide Block Shaft | Ref. AUX203917 · wear part · PL 1012-E01 | |
| Piston Bushing (carbon) | Ref. AUX319229 · wear part · PL 1012-E01 | |
| Piston Bushing (bronze) | Ref. AUX231075 · wear part · PL 1012-E01 | |
| Slide Block + Pin + Bushing | Ref. AUX317091 · wear part · PL 1012-E01 | |
| Slide Block Pads Set Complete – FKM | Ref. AUX315418 · wear part · PL 1012-E01 | |
| Front Cover Drain Plug + Seal | Ref. AUX316444 · wear part · PL 1012-E01 | |
| Bearing Bushing – Carbon | Ref. AUX314590 · wear part · PL 1012-E01 | |
| Bearing Bushing – Bronze | Ref. AUX231076 · wear part · PL 1012-E01 | |
| Piston Bearing, Complete | Ref. AUX317086 · wear part · PL 1012-E01 | |
| Driver, Complete D45 (for Mouvex Mechanical Seal) | Ref. AUX315934 · wear part · PL 1012-E01 | |
| Set of Mechanical Seal Seals – FKM | Ref. AUX316543 · wear part · PL 1012-E01 | |
| Bearing & Ring | Ref. AUX315899 · wear part · PL 1012-E01 | |
| Set of Seals for Relief Valve C – FKM | Ref. AUX316594 · wear part · PL 1012-E01 | |
| Seal FEP-FKM | Ref. AUX211442 · Qty 2 · wear part · PL 1012-E01 | |
| Seal FKM | Ref. AUX200912 · Qty 2 · wear part · PL 1012-E01 | |
| Set of Seals for Relief Valve 2C – FKM | Ref. AUX316705 · wear part · PL 1012-E01 | |
| Spring + Seal – Relief Valve 6 Bar – FKM | Ref. AUX317074 · Qty 1/2 · wear part · PL 1012-E01 | |
| Pressure Screw Assembly + Relief Valve Seals – FKM | Ref. AUX319777 · Qty 1/2 · wear part · PL 1012-E01 | |
| Main parts | ||
| Main Body with Flanges to suit Old A Series, Complete | Ref. AUX314592 · PL 1012-E01 | |
| Main Body PN16 PN20, Complete | Ref. AUX314591 · PL 1012-E01 | |
| Slide Block, Complete | Ref. AUX317090 · PL 1012-E01 | |
| Complete Front Cover – FEP-FKM | Ref. AUX315389 · PL 1012-E01 | |
| Complete Front Cover – FKM | Ref. AUX315388 · PL 1012-E01 | |
| Complete Front Cover with Jacket – FEP-FKM | Ref. AUX315545 · PL 1012-E01 | |
| Complete Front Cover with Jacket – FKM | Ref. AUX315544 · PL 1012-E01 | |
| Slide Block Pads Set Complete – FEP-FKM | Ref. AUX315419 · PL 1012-E01 | |
| Front Cover Bearing Complete – Bronze Bushing – FEP-FKM | Ref. AUX317069 · PL 1012-E01 | |
| Front Cover Bearing Complete – Bronze Bushing – FKM | Ref. AUX317068 · PL 1012-E01 | |
| Front Cover Bearing Complete – Carbon Bushing – FEP-FKM | Ref. AUX315547 · PL 1012-E01 | |
| Front Cover Bearing Complete – Carbon Bushing – FKM | Ref. AUX315546 · PL 1012-E01 | |
| Shaft Complete | Ref. AUX317070 · PL 1012-E01 | |
| Shaft | Ref. AUX228618 · PL 1012-E01 | |
| Set of Mechanical Seal Seals – FEP-FKM | Ref. AUX316544 · PL 1012-E01 | |
| Bearing Holder PGSN – FEP-FKM | Ref. AUX315549 · PL 1012-E01 | |
| Bearing Holder PGSN – FKM | Ref. AUX315548 · PL 1012-E01 | |
How we confirm the exact part: Mouvex spares are ordered by their reference number against the pump build shown on the nameplate (model, serial number and options code). References on this page are as printed in the current Mouvex parts list. Send the nameplate details or a photo, and tell us the liquid pumped, and we’ll confirm the right genuine parts before we quote.
Service Intervals & When to Replace
- Bearing: grease the shaft inlet bearing every 1,000 running hours or at least once a year, using a high drop-point grease above about 100°C (IOM NT 1012).
- Piston and cylinder: wear parts, always replaced as a matched pair once they reach the minimum wear dimensions in Mouvex NT 1012-F00.
- Bushings, slide block and pads: check against the same wear table when the pump is opened; the bearing has a design life of about 20,000 hours.
- Seals: replace O-rings and seals that are scratched, cut or permanently set, and fit the seal set in the material the pump was built with (FKM or FEP-FKM).
Models
This page covers the Mouvex A55. The model, serial number and build options code are on the pump nameplate; Mouvex matches spares to that build.
Models & Key Specifications
| Model | Max flow | Max speed | Max differential | Cylinder capacity | Parts list |
|---|---|---|---|---|---|
| A55 A | 53 m³/h | 350 rpm | 10 bar (carbon) / 5 bar (bronze bushings) | 2.533 L | PL 1012-E01 |
Limits from Mouvex IOM NT 1012-E00: max discharge 12 barg, pumped product −15°C to +150°C depending on duty. Typical uses: fuels, lubricants, solvents, paints, resins, cooking oils and molasses.
Troubleshooting
No flow or low flow
Likely cause: Port plugs left in, wrong rotation or speed too low; a relief valve set below the discharge pressure or not closing; or internal wear. Action: Check the drive, rotation and speed, then measure discharge pressure. If it is low, reset or clean the relief valve; if the pump is worn, replace the piston and cylinder (as a matched pair), bushings and slide block.
High vacuum at the inlet, pump noisy
Likely cause: Suction lift or suction losses too high, a blocked inlet (valve, strainer, blank seal) or product vapour pressure too high for the temperature. Action: Lower the pump or shorten and enlarge the suction line, clear the strainer and valves, and cool the product or bring the pump closer to the tank.
Low vacuum and poor priming
Likely cause: Air leaking in at the front cover seals or flanges, the relief valve not seating, or internal wear. Action: Isolate the pump from the suction line and re-measure the vacuum. Replace the seal set, clean the relief valve seat, or replace the piston and cylinder (as a matched pair), bushings and slide block if the pump itself will not pull vacuum.
Bearings running hot
Likely cause: Pipework pulling on the pump flanges, poor pump-to-drive alignment, a twisted baseplate or excessive belt or chain tension. Action: Support the pipework so it does not load the pump, re-check coupling alignment at each installation stage, and make sure the baseplate sits on its mounting points.
Motor overloads or trips
Likely cause: Viscosity, specific gravity or head losses higher than the pump was selected for, speed too high, misalignment or a motor wiring fault. Action: Check the actual discharge pressure against the duty, reduce speed or heat the product, and check alignment and motor connections. Do not use the relief valve as a flow control.
Request for Quotation
Selected Parts:
- No parts selected
Not sure which parts? Just send a photo of the nameplate or part below.
Mouvex A55 spare parts: frequently asked questions
Tap a question to see the answer.
What spare parts are listed for the Mouvex A55?
The page lists maintenance kits and seal sets first, then wear parts, then the main parts, each with the Mouvex reference printed in PL 1012-E01. Material versions such as FKM, FEP-FKM or CVT seals have their own references.
How do I order the right Mouvex parts?
Mouvex matches spares to the pump build. Tick the parts you need, choose your model in the quote form, and add a nameplate photo showing the model, serial number and options code, plus the liquid pumped. We confirm the exact genuine parts before quoting.
What are the operating limits of the Mouvex A55 A?
Mouvex IOM data for the A55 A gives a maximum flow of 53 m³/h at up to 350 rpm, a maximum differential of 10 bar with carbon bushings or 5 bar with bronze, and 12 barg maximum discharge. Check your duty with us before ordering upgraded parts.
Do you supply parts for other Mouvex pumps?
Yes. We list parts for Mouvex A, C, Micro C, SLC, SLS and FLO eccentric disc pumps and P Series sliding vane pumps. See our Mouvex eccentric disc pumps or all Mouvex spare parts by series. Not sure which model you have? Send a nameplate photo.