The CRVpro family of direct drive rotary vane vacuum pumps from Welch delivers superior reliability and longer service intervals compared to traditional models. These pumps are designed for optimal performance while consuming up to 36% less oil than comparable units, making them a cost-effective and eco-friendly choice.

Key Benefits:

• Runs Cooler: Operates 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, improving longevity and performance.
• Chemical Resistant Coating: The oil case and pump module are coated with a chemical-resistant layer, protecting non-moving parts from wear and tear.
• Advanced Features: Includes gas ballast, forced oil lubrication, anti-suckback mechanism, and thermal overload protection for enhanced functionality and durability.

Applications:

The CRVpro vacuum pumps are suitable for a wide range of applications, including:

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

The CRVpro series is also available with perfluoropolyether (PFPE) for oxygen service and explosion-proof motors for hazardous environments. For more information about these configurations, contact a 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: Always use a certified electrician for proper installation of three-phase motors. 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 more details and product inquiries, please reach out to your local Welch sales representative.