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Welch CRVpro Line of Direct Drive Vacuum Pumps

Welch CRVpro Line of Direct Drive Vacuum Pumps – Competitive CRVpro Prices & Expert Support

Discover the full range of Welch CRVpro direct drive rotary vane vacuum pumps. Oil-sealed, chemical-resistant, and built for reliability. Get the best CRVpro price and professional selection assistance from Chemtech Scientific. Contact us today!

The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits: 

  • Runs 10°C cooler than comparable pumps. Slows corrosion. 
  • Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals. 
  • Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts. 

The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection. 

Suitable applications include:
•Thin film coating •Refrigeration dehydration •Freeze Drying •Vacuum drying
•Degassing of transformer oils, epoxies, etc. •Distillation •Vessel or chamber evacuation
•Backing pumps for blowers

The Welch CRVpro Series represents the next generation of direct-drive rotary vane vacuum pumps. Designed for durability, quiet operation, and excellent chemical resistance, CRVpro pumps are the preferred choice for modern laboratories and light industrial applications. With pumping speeds from 2 to 30 CFM and advanced features like PTFE-coated components in chemical-duty models

Compare the full Welch CRVpro direct drive rotary vane vacuum pump lineup – from compact CRVpro 2 to high-capacity CRVpro 60.

Welch CRvpro Family.pdf

Welch CRVpro Direct Drive Rotary Vane Vacuum Pumps – Full Series Comparison

Model Pumping Speed (60 Hz) Ultimate Vacuum (No Gas Ballast) Inlet Flange Noise Level Oil Capacity Motor Power (approx.) Weight (approx.) Best Applications
CRVpro 2 1.8 CFM 2×10⁻⁴ Torr 7/16" (11mm) ≤50 dB(A) 0.45 L 0.3 kW 15 kg (33 lbs) Small benchtop, filtration
CRVpro 4 2.8 CFM 4×10⁻⁴ Torr 7/16" (11mm) 50 dB(A) 1.15 L 0.4 kW 21 kg (46 lbs) Rotary evaporation
CRVpro 6 4.2 CFM 4×10⁻⁴ Torr 5/8"–3/4" 50 dB(A) 1.15 L 0.4 kW 22 kg (48 lbs) General laboratory use
CRVpro 8 5.6 CFM 4×10⁻⁴ Torr 5/8"–3/4" 50 dB(A) 1.0 L 0.4 kW 22.5 kg (50 lbs) Medium flow applications
CRVpro 16 12.8 CFM 2×10⁻³ Torr 3/4" (19mm) 55 dB(A) 2.4 L 0.85 kW 37 kg (82 lbs) High throughput labs
CRVpro 24 18.3 CFM 2×10⁻³ Torr 3/4" (19mm) 55 dB(A) 2.2 L 0.85 kW 38.5 kg (85 lbs) Demanding lab processes
CRVpro 30 22.1 CFM 2×10⁻³ Torr 3/4" (19mm) 55 dB(A) 2.1 L 0.85 kW 39.5 kg (87 lbs) Large vacuum systems
CRVpro 48 39.4 CFM 2×10⁻³ Torr KF40 / DN40 ≤58 dB(A) 4.9 L 2.2 kW 99 kg (218 lbs) Industrial, high capacity
CRVpro 65 52.5 CFM 2×10⁻³ Torr KF40 / DN40 ≤58 dB(A) 4.3 L 2.2 kW 100 kg (220 lbs) Highest capacity, heavy industrial use

Looking for the best CRVpro price? At Chemtech Scientific, we offer competitive CRVpro prices across the full lineup, including popular models like CRVpro 6, CRVpro 16, CRVpro 24, and CRVpro 30 — with fast shipping and expert support.

Need help choosing the right CRVpro pump for your application? Our vacuum specialists are ready to assist you. Whether you need a pump for rotary evaporation, vacuum filtration, solvent recovery, or general lab use, we’ll recommend the best model at the right CRVpro price.

Contact us today for personalized selection assistance, current pricing, availability, and special offers on Welch CRVpro vacuum pumps.


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