$28.00
This spring (Part #490073) is a replacement part made specifically for the Pfeiffer DUO 125 vacuum pump . Inside your pump, this small but important spring provides the right tension to keep other components working together smoothly . If you are rebuilding your DUO 125 pump or fixing a performance issue, this is the correct spring for the job.
Spring, DUO 125, Pfeiffer, DUO, Part# 490073
Spring, DUO 125, Pfeiffer, DUO, Part# 490073
This spring’s main job is to provide tension inside the pump. Think of it like this. When the pump is running, certain parts need to stay in contact with each other. The spring pushes those parts together. It makes sure everything stays tight and works the way it should .
Without the right spring, parts can lose contact. Then your pump cannot create good vacuum pressure. It might make strange noises. Or it might stop working altogether.
This spring is made for this specific Pfeiffer pump model:
DUO 125
Check your pump’s model tag before ordering. Look for “DUO 125” on the label.
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