Welch CRVpro Rotary Vane Vacuum Pumps with Explosion Proof Motor

Ideal for hazardous areas where flammable gases or vapors are present
  • Consumes less oil by cool running operation
  • Large oil capacity minimizes rates of oil breakdown
  • Chemical resistant coating in oil case and pump module protects non-moving parts
  • Up to 10 dB noise level for undisturbed work
  • IP54 enclosure rating
The CRVpro series two-stage, direct drive rotary vane vacuum pumps are fitted with Class 1, Groups C and D, and Class 2, Groups F and G explosion proof motors. Be sure to use a certified electrician for proper installation of these pumps. Conduit wiring installation required. No cord, plug, or switch provided.

A unique air flow design allows the pumps to run 10°C cooler than standard rotary vane pumps, leading to reduced chemical activity within the pump and less oil consumption—up to 36% less than comparable pumps. The oil-sealed pumps feature a gas ballast, forced oil lubrication, anti-suck back valve, low noise level, and thermal overload protection. The gas ballast uses either outside air or dry inert gas to reduce condensable vapors from entering the pump oil.

Ideal for use in freeze drying, degassing, vacuum ovens, and concentrators.
$4,811.00 - $6,644.00USD / Each

3 variations of this product are available.

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Free Air Capacity (CFM) Max Vacuum (torr) Power (VAC)
Availability Pricing
Welch CRVpro4 Rotary Vane Vacuum Pump, 2.8 CFM, XPRF 115V/208-230V, 60 Hz EW-79206-19 Mfr # 3046E-01
COMPARE
2.8 0.05 115
$4,811.00USD / Each
Welch CRVpro8 Rotary Vane Vacuum Pump, 5.6 CFM, XPRF 115V/208-230V 60 Hz EW-79206-21 Mfr # 3086E-01
COMPARE
5.6 0.05 115
$5,429.00USD / Each
Welch CRVpro16 Rotary Vane Vacuum Pump, 12.8 CFM, XPRF 115V/208-230V 60 Hz EW-79206-22 Mfr # 3166E-01
COMPARE
12.8 0.005 115
$6,644.00USD / Each
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