Pfeiffer Vacuum, Inc. Multi-stage roots vacuum pumps A 204 H/X

The A 204 H/X is a multi-stage Roots vacuum pump designed for dry, energy-efficient operation with adjustable settings to match process requirements. It features advanced temperature management, corrosion-resistant materials, and protection against condensation and premature wear. The pump has a nominal pumping speed of 130 / 160 m³/h at 50/60 Hz, an ultimate pressure of 2 · 10⁻¹ / 5 · 10⁻² hPa, and consumes 1.6 / 1.8 kW at ultimate pressure. Cooling water flow ranges from 2.3 to 4 l/min, with a sound pressure level below 68 dB(A). It weighs approximately 250 kg and measures 961 x 388 x 579 mm. Gas inlet and outlet are DN 50 and DN 40, respectively.