NASH-A Gardner Denver Product

NASH Certified™ Service Centers

ISO 9001:2008, 14001:2004 and OHSAS 18001 Certified

NASH Certified Service Centers are the only centers authorized to offer OEM parts, factory trained technicians, and patented upgrades that provide NASH quality service and repair at a competitive price.

Some companies claim to offer service, but take shortcuts, reuse parts and do not repair the product to OEM specs. Considering another service shop - why risk it? Sub-par repairs can lead to costly downtime, pump and system failure, and lost production.  

For maximum productivity, reliability and efficiency choose NASH Certified Service. 
For a list of NASH Certified Service Center global locations click here.

Services Offered:


Inspections & Analysis

Liquid ring pumps are disassembled or fiberscope inspected, and the cause of failure is determined. This enables Nash to provide you with information as to why the pump failed, to take corrective action and to determine the best type of repair for your particular application in order to extend pump life. A firm quote for repair is prepared and sent to you. Options quoting can also be made, and you determine the method of repair. Learn more... 


All new, remanufactured and repaired parts meet current product specifications. As improvements are made to a particular part for better pump performance, your pump will be automatically upgraded. All stainless material that is used in the lining of parts is "L" grade only, 304L or 316L as specified. New components, when required, are original Gardner Denver Nash castings.


Nash can replace your original Nash pump with an IDENTICAL, warrantied, remanufactured unit.

  • Top quality service and equipment at competitive pricing
  • Pump performance at 95% of a new pump
  • NASH Certified 2 Year Warranty
  • Many exchange pumps are available to ensure minimum downtime

New bearings, packing and gaskets are supplied on every NASH Certified remanufactured unit.


Nash has the current manufacturer's drawings and dimensions. All tolerances are set to these current specifications based on Nash pump drawings. Only Gardner Denver Nash has the current OEM drawings and specifications.


All clearances and tolerances are checked at assembly. All components are inspected for proper fit and smooth operation.


All pumps are primed and painted the same as new pumps. Pumps can be painted to your particular specifications with regards to color and material.

Final Inspection

Pumps are inspected prior to shipping on each order. When shipping, all open nozzles are covered with shipping covers to protect your pump against inclement weather, foreign objects and/or tampering.