Description

The Pfeiffer Duo 2.5 Rotary Vane Pump provides a pumping speed of 2.5 m³/h at 50 Hz. Its two-stage, oil-sealed design achieves a specified ultimate pressure of ≤6 × 10⁻³ mbar. This makes it suitable for laboratory vacuum applications and backing compatible high-vacuum pumps. With its compact footprint, the Duo 2.5 fits easily alongside analytical instruments or within laboratory vacuum systems.

A gas ballast valve supports the pumping of condensable vapours, helping reduce condensation within the pump oil during operation. Meanwhile, DN 16 ISO-KF inlet and exhaust connections allow straightforward integration with compatible vacuum fittings and pipework. The pump has an oil capacity of 0.4 litres and a specified noise level of ≤53 dB(A) without gas ballast. Its accessible oil level sight glass allows users to check the operating fluid during routine inspections. Combining a compact design with practical maintenance features, the Pfeiffer Duo 2.5 offers a useful vacuum source for research and analytical laboratories.