The Agilent DS202 (formerly Varian DS202) is a dual-stage, oil-sealed rotary vane vacuum pump designed for efficient and reliable vacuum generation in various laboratory and industrial applications.

Key Features:

• Pumping Speed: Provides a pumping speed of 8.3 m³/hr (approximately 5.8 CFM) at 50 Hz, ensuring effective evacuation of vacuum systems.
• Ultimate Pressure: Achieves a base pressure of less than 2 × 10⁻³ mbar, suitable for applications requiring deep vacuum levels.
• Motor Specifications: Equipped with a universal-voltage single-phase electric motor, offering flexibility in various electrical environments.
• Gas Ballast Valve: Includes a gas ballast valve that allows the pump to handle water vapor by introducing a controlled amount of atmospheric air into the pump during operation.
• Inlet Isolation Valve: Features an integrated inlet isolation valve that automatically isolates the vacuum system when the pump stops, preventing pressure rise and oil backflow.

Applications:

The DS202 is widely used in laboratory settings, including:

• Mass spectrometry
• Chromatography
• Surface analysis
• Thin film deposition
• Electron microscopy