The VRI-4 Oil Rotary Vane Vacuum Pump is the compact entry model of the VRI/VRD Series — delivering dual-stage rotary vane vacuum pumping at 4 m³/h with a 1×10⁻¹ Pa ultimate partial pressure (3 Pa ultimate total pressure) for stable, reliable vacuum supply to laboratory vacuum ovens, drying systems, chemical processing setups, and general vacuum applications. The VRI-4 integrates key performance features that distinguish it from basic rotary vane designs: a built-in gear pump ensuring continuous steady oil supply to the rotating vanes for sustained vacuum performance, an electric solenoid valve that automatically prevents oil backflow into the connected vacuum system during power failure or shutdown, IP44 environmental protection, and single-phase 0.37 kW motor at 1440 rpm — all within a compact 337 × 138 × 244 mm format weighing only 11 kg. Enquire about the VRI-4 today.
The VRI-4 provides dual-stage 4 m³/h rotary vane vacuum pumping at 1×10⁻¹ Pa ultimate partial pressure with KF16 connections, IP44 protection, built-in gear pump, solenoid anti-backflow valve, and 0.37 kW single-phase motor — the compact entry model in the VRI/VRD Series for laboratory vacuum ovens, drying systems, and general vacuum applications. Full specifications listed below.
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