When the Pump Loses Performance, the Entire System Feels It
NNG evaluates industrial pumps, identifies wear and damage, and helps restore dependable flow, pressure and operation through repair, rebuilding, exchange or replacement.
- Industrial Pumps
- Repair or Exchange Options
- Legacy Equipment Support
PUMP INSPECTION | COMPLETE REBUILDS | SHAFT & SEAL SERVICE | PRECISION MACHINING | EXCHANGE OPTIONS | OBSOLETE PUMP SUPPORT
Industrial Pump Repair & Rebuild Services
Pump problems can begin with reduced flow, pressure loss, leakage, noise, vibration or excessive heat. Left unresolved, wear may spread through shafts, bearings, seals, housings and related pump components. NNG Industries provides inspection, repair, rebuilding, machining, exchange and replacement support for pumps used in industrial, high-pressure and production equipment applications. The goal is to evaluate the complete pump assembly and determine the most practical path based on its condition, service history, replacement availability and operating requirements.
Pump Inspection & Evaluation
Inspection support for wear, leakage, internal damage, shaft condition, bearing condition and performance-related concerns.
Pump Repair
Repair support for qualifying pumps with localized wear, damaged components or loss of mechanical performance.
Complete Pump Rebuilding
Rebuilding support involving disassembly, cleaning, component replacement, machining, reassembly and testing where applicable.
Shaft, Journal & Housing Service
Machining and restoration support for worn shafts, journals, bores, housings and related mechanical surfaces.
Bearing, Seal & Internal Component Replacement
Replacement and sourcing support for bearings, seals, bushings, packing and other internal wear components.
Exchange & Replacement Options
Exchange-unit evaluation and sourcing support when repair is not the best option for the application or turnaround requirement.
Receive → Disassemble → Inspect → Approve → Rebuild or Exchange → Test
Pump Problems Require More Than Replacing the Leaking Part
A visible leak or pressure loss may point to a failed seal, but the underlying issue may involve shaft wear, bearing damage, alignment, cavitation, contamination or housing wear. NNG evaluates the condition of the full assembly so the service recommendation reflects the actual failure rather than only the most obvious symptom.
Restore dependable flow, pressure and mechanical performance.
Repair decisions based on the condition of the complete pump.
Pumps & Related Assemblies We Support
NNG supports a range of pumps used across industrial, production and high-pressure applications. Service availability depends on the manufacturer, pump type, material, condition, technical information and parts availability.
Support for Current and Legacy Equipment
NNG may assist with discontinued or difficult-to-source pumps when repairable components, drawings, dimensional information or qualified replacement options remain available.
Project Evaluation
Depending on the request, NNG may review pump information, operating pressure, flow requirements, speed, service history, failure symptoms and available technical documentation.
Pump Types
- Reciprocating pumps
- Plunger pumps
- Piston pumps
- Process pumps
- High-pressure pumps
- Hydraulic pumps
Pump Components
- Shafts
- Bearings
- Seals
- Bushings
- Housings
- Couplings
- Packing
- Internal wear components
Common Applications
- Industrial production equipment
- Pressure pumping systems
- Hydraulic systems
- Process equipment
- Machine tools
- Oilfield equipment
- Specialty machinery
The Right Path...
The right option depends on the pump’s condition, internal damage, repair history, replacement availability and production requirements.
Repair
Correct localized wear, leakage or component damage when the pump remains serviceable.
Rebuild
Restore the assembly through disassembly, cleaning, component replacement, machining, reassembly and testing.
Exchange
Replace
Source a new, rebuilt, used, OEM or qualified aftermarket pump when repair is not practical.
SPINDLE REPAIR QUESTIONS
What Customers Need to Know
Answers to common questions about evaluation, testing, exchange availability and what to send with a service request.
What information should I provide?
Send the pump manufacturer and model, serial number, pump type, operating pressure, flow requirements, symptoms, photos, service history and required timing.
What pump problems can NNG evaluate?
NNG may evaluate leakage, reduced flow, pressure loss, noise, vibration, overheating, shaft wear, bearing failure and internal component damage.Exchange availability depends on the spindle manufacturer, model and current inventory.
Does NNG perform complete pump rebuilds?
Complete rebuilding may be available depending on the pump type, condition, parts availability and required scope.
Can NNG repair obsolete pumps?
Support may be possible when the pump can be identified, measured, repaired or matched to a qualified replacement.
Are exchange pumps available?
Exchange availability depends on the manufacturer, model, configuration and current inventory.
What testing is performed after repair?
Testing may include rotational checks, leak inspection, dimensional verification, pressure testing and functional testing appropriate to the completed work.
Does NNG service fluid ends and power ends?
NNG may provide separate repair, exchange and replacement support for qualifying fluid ends and power ends. Link directly to those service pages here.
Need Pump Repair or Exchange Support?
Send the pump information, operating requirements, symptoms, photos, service history and required timing. NNG will review the request and help identify the most practical repair, rebuilding, exchange or replacement path.