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.
This Vane Spring (Part #490069) is a replacement part made for Pfeiffer DUO 120A and DUO 125 vacuum pumps . Unlike a regular spring, a vane spring has one specific job: it pushes the vane outward against the cylinder wall. This creates the seal needed to generate vacuum pressure. If you are rebuilding your pump, you will need eight of these springs for a full overhaul
This Compression Valve (Part #580052) is a replacement part made for three popular Pfeiffer DUO series vacuum pumps. It fits the DUO 120A, DUO 125, and DUO 250A models . A compression valve helps control gas flow and pressure inside your pump. If you are rebuilding your pump, you will need one of these valves for a complete overhaul .
This 1st Stage Vane (Part #230092) is a replacement part made for Pfeiffer DUO120A and DUO125 vacuum pumps . It is designed for use in the first stage of these two-stage pumps. Made from durable GX material, this vane helps maintain a tight seal inside your pump, which is essential for creating strong vacuum pressure . If you are rebuilding your DUO120A pump, you will need two of these vanes for a complete overhaul .
This 2nd Stage Vane (Part #230093) is a replacement part made for Pfeiffer DUO120A and DUO125 vacuum pumps . It is designed for use in the second stage of these two-stage pumps. Made from durable GX material, this vane helps maintain a tight seal inside your pump, which is essential for creating strong vacuum pressure. If you are rebuilding your DUO120A pump, you will need two of these vanes for a complete overhaul .
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