Pump Parts & Servicing
Keeping pumps in good repair costs far less than unplanned downtime. Pump parts and servicing covers the seals, bearings, impellers and wear parts that wear out with normal use, along with the expertise to rebuild pumps to like-new condition.
Common Pump Parts
- Mechanical seals and packing – stop leaks at the shaft
- Bearings and bearing frames – restore smooth, quiet operation
- Impellers, casings and wear rings – recover lost flow and efficiency
- Diaphragms, valves and balls – rebuild kits for AODD and metering pumps
- Couplings and baseplates – keep pump and motor aligned
When to Service a Pump
Warning signs include leaking seals, rising vibration or noise, higher motor amps, falling discharge pressure and overheating bearings. Keeping the pump's model and serial number on record makes ordering parts much faster. Planned rebuilds during shutdowns keep surprises to a minimum.
Centro supplies pump parts and repair services for many pump brands, from small metering pumps to large process pumps.
Related categories: Pumps | Pump Repair | Peristaltic/Hose Pumps
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The 50503-15 is a 15 m (49.2 ft) extension cable for PROTEUS™ I/O cordsets. Extends 5 or 6-pin PROTEUS™ cordset connections — useful when the pump is mounted away from the control panel or junction box. Designed for use with the PROTEUS™ enhanced control wiring for digital inputs, analog outputs, or communications connections. Purchase one cable per run length needed; multiple cables may not be daisy-chained.
$326.06$361.00
Available for Purchase
Subject to factory lead times
The 50503-6 is a 6 m (19.7 ft) extension cable for PROTEUS™ I/O cordsets. Extends 5 or 6-pin PROTEUS™ cordset connections — useful when the pump is mounted away from the control panel or junction box. Designed for use with the PROTEUS™ enhanced control wiring for digital inputs, analog outputs, or communications connections. Purchase one cable per run length needed; multiple cables may not be daisy-chained.
$191.48$212.00
Available for Purchase
Subject to factory lead times
The 54342-20 is a 4-pin, 2 m cordset for PROTEUS™ enhanced control analog input (J3 connector). This factory-assembled cordset connects the PROTEUS™ pump's I/O terminals to external process signals, control panels, or communications networks. Pre-wired and terminated to minimize field wiring time. One cordset is included with the enhanced control drive; additional cordsets are needed when using multiple I/O channels or communications options simultaneously.
$139.29
Available for Purchase
Subject to factory lead times
Order code PKN covers a specialized factory service or configuration for PrimeRoyal metering pumps. Covers: Option for Single diaphragm: diaphragm in PEEK, seal o-rings in nitril. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$39.53
Available for Purchase
Subject to factory lead times
Factory service option PON for PrimeRoyal pump systems. Covers: Option for Double diaphragm: intermediate diaphragm in POM, seal o-rings in nitril. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$39.53
Available for Purchase
Subject to factory lead times
The RPM130 is a scheduled-maintenance kit for the Milroyal D liquid end. Includes the diaphragm or oil seal, O-rings, and check-valve components specific to this liquid end material and size. Rebuild kits simplify planned maintenance and keep the pump at its rated accuracy and pressure capability. Check the RPM kit chart to confirm the correct kit number for your liquid end material code and plunger diameter.
$1,393.53
Available for Purchase
Subject to factory lead times
The RPM54773 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$546.18
Available for Purchase
Subject to factory lead times
The RPM54774 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$526.44
Available for Purchase
Subject to factory lead times
The RPM54776 is a scheduled-maintenance kit for PROTEUS™ liquid ends. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$1,132.95
Available for Purchase
Subject to factory lead times
The RPM54782 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$314.77
Available for Purchase
Subject to factory lead times
Factory service option VS1 for PrimeRoyal pump systems. Covers: Spring loaded ball - at suct. side: 0.2 bar / at disch. side: 1 bar - For XV liquid ends with plungers Ø 6 to 16 mm (DSD 71 and 91) ONLY. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$712.47
Available for Purchase
Subject to factory lead times
Factory service option VV2 for PrimeRoyal pump systems. Covers: NPT Vertical Vertical $ -. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$138.85
Available for Purchase
Subject to factory lead times
The 50503-15 is a 15 m (49.2 ft) extension cable for PROTEUS™ I/O cordsets. Extends 5 or 6-pin PROTEUS™ cordset connections — useful when the pump is mounted away from the control panel or junction box. Designed for use with the PROTEUS™ enhanced control wiring for digital inputs, analog outputs, or communications connections. Purchase one cable per run length needed; multiple cables may not be daisy-chained.
$326.06$361.00
Available for Purchase
Subject to factory lead times
The 50503-6 is a 6 m (19.7 ft) extension cable for PROTEUS™ I/O cordsets. Extends 5 or 6-pin PROTEUS™ cordset connections — useful when the pump is mounted away from the control panel or junction box. Designed for use with the PROTEUS™ enhanced control wiring for digital inputs, analog outputs, or communications connections. Purchase one cable per run length needed; multiple cables may not be daisy-chained.
$191.48$212.00
Available for Purchase
Subject to factory lead times
The 54342-20 is a 4-pin, 2 m cordset for PROTEUS™ enhanced control analog input (J3 connector). This factory-assembled cordset connects the PROTEUS™ pump's I/O terminals to external process signals, control panels, or communications networks. Pre-wired and terminated to minimize field wiring time. One cordset is included with the enhanced control drive; additional cordsets are needed when using multiple I/O channels or communications options simultaneously.
$139.29
Available for Purchase
Subject to factory lead times
Order code PKN covers a specialized factory service or configuration for PrimeRoyal metering pumps. Covers: Option for Single diaphragm: diaphragm in PEEK, seal o-rings in nitril. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$39.53
Available for Purchase
Subject to factory lead times
Factory service option PON for PrimeRoyal pump systems. Covers: Option for Double diaphragm: intermediate diaphragm in POM, seal o-rings in nitril. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$39.53
Available for Purchase
Subject to factory lead times
The RPM130 is a scheduled-maintenance kit for the Milroyal D liquid end. Includes the diaphragm or oil seal, O-rings, and check-valve components specific to this liquid end material and size. Rebuild kits simplify planned maintenance and keep the pump at its rated accuracy and pressure capability. Check the RPM kit chart to confirm the correct kit number for your liquid end material code and plunger diameter.
$1,393.53
Available for Purchase
Subject to factory lead times
The RPM54773 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$546.18
Available for Purchase
Subject to factory lead times
The RPM54774 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$526.44
Available for Purchase
Subject to factory lead times
The RPM54776 is a scheduled-maintenance kit for PROTEUS™ liquid ends. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$1,132.95
Available for Purchase
Subject to factory lead times
The RPM54782 maintenance kit covers the consumable components in a PROTEUS™ liquid end. Each kit includes the primary diaphragm, secondary diaphragm housing seal, all required O-rings, and replaceable check-valve components or balls and seats. Ordering one kit per scheduled service interval keeps parts on the shelf and reduces unplanned downtime.
$314.77
Available for Purchase
Subject to factory lead times
Factory service option VS1 for PrimeRoyal pump systems. Covers: Spring loaded ball - at suct. side: 0.2 bar / at disch. side: 1 bar - For XV liquid ends with plungers Ø 6 to 16 mm (DSD 71 and 91) ONLY. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$712.47
Available for Purchase
Subject to factory lead times
Factory service option VV2 for PrimeRoyal pump systems. Covers: NPT Vertical Vertical $ -. Factory service options are applied at time of manufacture and must be specified when placing the pump order. These options allow the pump to be configured, tested, or documented to project-specific requirements before shipment, reducing site commissioning time and ensuring compliance with customer specifications.
$138.85
Available for Purchase
Subject to factory lead times