Seal Ring

A seal ring is a small but very important part inside your vacuum pump. Its job is simple. It stops air and oil from leaking out. It also stops dirt from getting in. Without good seal rings, your pump cannot hold vacuum.This seal ring is made for Rietschle vacuum pumps . It is a direct replacement part. The part number to match is 522575.

Old seal rings get hard and cracked. They lose their ability to seal. When that happens, you lose vacuum and gain leaks. Changing the seal ring is the only fix.

Here are the signs you need a new seal ring:

• Oil leaks – You see oil on the outside of the pump.

• Low vacuum – The pump does not pull as hard as it used to.

• Strange noises – Air sucking in through a bad seal.

• High hours – The pump has run for many years.