Like people, most liquid ring vacuum pumps retire after 30 or 40 years.
They get tired or their skills become surpassed by the younger generation.
However, we”ve found one instance of a liquid ring vacuum pump that worked for 82 years before being removed for repair!

The pump in questions, a NASH Hytor #6 pump, worked on the pulp dryer machine, on a top felt Uhle box, at Simpson Tacoma Kraft Company. The plant was built in 1928 by the Union Bag Company, and the #6 was there from the start. During its 82 years, the #6 pump has seen the company change hands a number of times, but it kept on doing its job.

Retirement comes eventually of course, and the NASH #6 pump has gracefully
given way to a NASH Vectra XL. The former could have kept on working with
bearings replacement, but the thought now was the best time to put the old pump to bed in favor of a newer model.

Do you have an old Nash pump still running?

Nash is running a contest to see what other pumps have been working hard
for many years. The person who submits the oldest pump will WIN A GPS
NAVIGATOR! Your pump doesn’t have to be 82 years old like the one shown; it just has to be older than the other contest entries. For contest details, go to www.GDNash.com/oldestpump.aspx. Entry forms will be accepted until November 1, 2010.