The Leybold D40B is a dual-stage, oil-sealed rotary vane vacuum pump known for its robust performance and versatility in various industrial and laboratory applications. It is particularly recognized for its high vapor handling capabilities and efficient operation.

Key Features:

• Pumping Speed: Offers a nominal pumping speed of 40 m³/h (approximately 23.6 CFM) at 50 Hz, and 28.26 CFM at 60 Hz.
• Ultimate Pressure: Achieves an ultimate partial pressure of 1 × 10⁻⁴ mbar, ensuring effective evacuation of vacuum systems.
• Motor Specifications: Equipped with a 3-phase motor operating at 208-230/380-460 VAC, 50/60 Hz, with a power rating of 3 horsepower (approximately 2.2 kW).
• Design and Construction: Designed for vibration-free and energy-efficient operation, the D40B features a compact and robust construction. The oil injected into the pump chamber serves for sealing, lubrication, and cooling, contributing to its durability and low maintenance requirements.

Applications:

The Leybold D40B vacuum pump is widely used in applications such as:

• Vacuum furnace evacuation
• Backing turbomolecular and diffusion pumps
• Rotary evaporation
• Refrigeration system evacuation
• Epoxy degassing
• Vacuum sterilisation
• Backing mass spectrometers
• Freeze drying
• Vacuum centrifugal applications
• Vacuum distillation
• Space research