The CRVpro family of direct drive rotary vane vacuum pumps is engineered for enhanced reliability, longer service intervals, and greater energy efficiency. These pumps consume up to 36% less oil than comparable models, making them both cost-effective and environmentally friendly.

Key Benefits:

• Cooler Operation: The CRVpro runs 10°C cooler than comparable pumps, reducing the risk of overheating and corrosion.
• Larger Oil Capacity: With a 40% larger oil capacity, the pump effectively dilutes aggressive chemicals, prolonging pump life.
• Chemical-Resistant Coating: The oil case and pump module are coated with a chemical-resistant layer, safeguarding non-moving parts from wear and chemical exposure.
• Advanced Features: The CRVpro family includes essential features such as gas ballast, forced oil lubrication, anti-suckback mechanism, and thermal overload protection for reliable, continuous performance.

Applications:

The CRVpro 48 & 65 vacuum pumps are versatile and can be used for a wide range of applications, including:

• Freeze Drying
• Vacuum Ovens
• HVAC/Refrigeration Service
• Coating Systems
• Backing Diffusion Pumps
• Wiped Film Evaporation
• Metallurgy/Vacuum Furnaces
• Lamp Manufacturing
• Space Simulation
• Degassing
• Vessel/Chamber Evacuation

Additionally, CRVpro vacuum pumps can be prepared with perfluoropolyether (PFPE) for oxygen service, and explosion-proof motors are available for hazardous environments. For more details on these specialized options, please contact your local Welch sales representative.

Electrical Specifications:

• Model 3657T-01: Operates at 230-240V/380-420V (+/- 5%) at 50 Hz, or 240-265V/415-460V (+/- 5%) at 60 Hz.
• Installation: Installation must be performed by a certified electrician. Conduit wiring is required, and no switch is included.

Included Accessories:

• Two NW40 Hinge Clamps
• Two NW40 Centering Rings
• 5 L of Welch Premium Oil

For further information and assistance, contact your local Welch sales representative to ensure the right CRVpro vacuum pump model is selected for your application.