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 Stamp Valve (Part #580054) is a replacement part made for several popular Pfeiffer DUO series vacuum pumps. It fits the DUO 120A, DUO 250A, and DUO 255M (Index C) models . A stamp valve is a critical component that helps control the flow of gas through your pump. If you are rebuilding your pump, you will need either one or two of these valves, depending on your specific model .
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