Pumps
Total pump repair, engineer, and assembly services
- Core Equipment
Pumps.
Built. Rebuilt. Engineered.
Built. Rebuilt. Engineered.
Large industrial water and process pumps. We provide complete new manufacturing, full rebuilds to OEM specifications, precision-machined spare parts—including impellers, shafts, wear rings, sleeves, casings, and bearing housings—and dedicated water pump repair services.
- Our Approach
New or rebuilt pumps Engineered, assembled, and built in-house.
When a mill or water treatment operation loses a pump, they’re in the same bind as a mill losing a mandrel — except with fewer places to call.
Mull Group is the exception. We machine, engineer, and assemble complete industrial pumps — new from print or reverse-engineered — and we rebuild existing pumps to OEM or better.
- Three Ways We Deliver
New units. Full rebuilds.
Spare parts on demand.
01
New Pump Manufacturing
Complete new industrial pumps engineered and manufactured to customer specification — from print or reverse-engineered design.
- Centrifugal, axial, and vertical configurations
- Complete casings, impellers, shafts, bearings
- Bronze components cast in-house
- Hydraulic test before shipment
02
Complete Rebuilds
Full teardown, inspection, re-machining, new wear parts, reassembly — restore performance to OEM or upgrade spec.
- Casing and volute re-machining
- New impellers, wear rings, sleeves
- Shaft straightening or replacement
- Hydraulic test and performance documentation
03
Spare & Replacement Parts
Precision-machined spare parts to OEM or better specifications — when the original supplier has disappeared or the lead time is unacceptable.
- Impellers (open, closed, semi-open)
- Shafts, sleeves, wear rings
- Casings, volutes, bearing housings
- Couplings, base plates, seal components
- Specifications
Pump capabilities.
Pump TypesCentrifugal · Axial · Vertical
ApplicationsWater · Process · Slurry
Casting AlloysBronze · Cast Iron · Steel
Bronze Alloys
Download our material grades list →C93200 · C95400 (in-house)
Download our material grades list →C93200 · C95400 (in-house)
Shaft Materials416 SS, 17-4 PH, 4140
TestingHydraulic + performance
OEM ReplacementReverse-engineered
SubcontractingNone
- Types We Work On
Every part of the pump. Every time.
Impellers
Open, closed, and semi-open impellers to OEM print.
Pump Shafts
Precision-ground shafts in 416 SS, 17-4 PH, 4140.
Wear Rings
Bronze and cast-iron wear rings, matched sets.
Shaft Sleeves
Precision-finished sleeves in corrosion-resistant alloys.
Casings & Volutes
Cast and machined volute housings.
Bearing Housings
Thrust and radial bearing support housings.
Seal Components
Mechanical seal sleeves, glands, and hardware.
Couplings & Bases
Rigid and flexible couplings, machined base plates.
