NES NL Series VACUUM PUMPS – Alternative When Replacing Nash Vacuum Pump

NES Vacuum pump


The NES vacuum pumps (NL series) are a quality choice when repairing or replacing a Nash Vacuum Pumps, particularly the classic Nash* CL Series liquid ring vacuum pump. 

The reliable and favorite Nash NL series vacuum pumps were products of the Nash Engineering Company. The Nash company was founded in the early 20th century by Lewis H. Nash to manufacturer vacuum pumps. In those early years they developed vacuum steam heating systems and systems to collect sewage fo quite a number of cities in the U.S. 

The company also developed products that served in the manufacturing paper and pulp.  Around the middle of the century they expanded into some primary industrial markets such as general industrial, food, power, and petrochemical.

The popular CL series of the Nash Vacuum pumps were patented all the way back in 1930s. They feature a conical porting design. This design serves to allow the strength of the compress to serve in counter to the weight of the shaft and rotor. This will help minimize the load on the bearings while as the pump is in use. The Nash design featured an option for lobe purge that served to minimize damage that might occur from erosion when solids are present. The carryover tolerance for liquids is high and also has side discharge that will keep the chance of flooded start to a minimum.

Vacuum Pump Systems, Inc. can provide you with a couple of solutions regarding this particular Nash vacuum pump. We do offer quality rebuilt Nash vacuum pump CL series vacuum pumps. These can be a lifesaver and a money saver for you as you want to keep your costs down and production time up. Call or click the button on this page to get your custom quote.

Also, we can provide you with new NES Vacuum Pumps. These new single stage/dual cone pumps are crafted to be drop-in replacements for the Nash* CL Series. They are available in NL-1000, 2000, 3000, 4000, 6000 and 9000 (up to 10,000 CFM). The construction is cast iron with Teflon packing. NES pumps are tested for performance and have a 2-year warranty. 

FEATURES of the NES Vacuum Pumps

• Drop-in replacement for classic Nash* CL series.

• Standard construction is Cast Iron with packing seals.

• Optional 304 or 316 Stainless Steel construction.

• Optional Viton mechanical seals available.

• Parts and repair kits readily available.

• Available as bare pump or as a part of engineering systems.

• Standard models typically ship from stock

• NES Vacuum Pumps 2-year factory warranty

NES Vacuum Pumps –

Getting the Job Done

The NES Vacuum Pumps NL series is a very good selection as a replacement or repairing the classic Nash® CL series vacuum pump. These reliable replacement single-stage/dual cone pumps are manufactured to be drop-in replacements for the Nash* CL Series. The NES Vacuum Pumps in this line come in NL-1000, 2000, 3000, 4000, 6000 and 9000 (up to 10,000 CFM). The standard construction is cast iron along with Teflon packing. The NES vacuum pumps are highly performance tested and they include a warranty of 2 years. 

NES vacuum Pumps

NL Series Specifications

NL Series Specs
discharge diagram - end
inlets and discharge for NES vacuum pumps

Let us help you decide about repairing you Nash Vacuum Pump or using reliable alternatives.

We can also provide you with a variety of Dekker pumps and pumps from the Vooner corporation. 

*Although we may help you by economically providing your company quality rebuilt Nash CL series vacuum pumps, Vacuum Pump Systems, Inc. is not an affiliate of Nash or the Gardner Denver Company.

*Nash is a registered trade mark of Gardner Denver Nash. Vacuum Pump Systems, Inc. has no affiliation with Nash, Nash Engineering, or Gardner Denver Nash. The information contain herein is provided as a convenience and for informational purposes only. Performance data are subject to manufacturing variation and test conditions including but not limited to atmospheric pressure, ambient temperature, seal fluid temperature, tolerances, and materials of construction. Performance of pumps constructed fully or partially of Stainless Steel may be lower due to larger clearance settings. All NES Company Inc. supplied products and recommendations or suggestions must be evaluated by the end-user to determine applicability and suitability for any particular use.