3041-01 -CRVpro 4, 115V,60Hz 1Ph, NW16 w/5/8‐3/4" Hose barb w/US plug

The robust vacuum pump CRV Pro 4 belongs to the new high-performance two-stage rotary vane pumps generation of Welch.
Availability: In stock
SKU: 3041-01
Manufacturer part number: 3041-01
$2,565.00
$2,149.99

The robust vacuum pump CRVpro 4 belongs to the new high-performance two-stage rotary vane pumps generation of Welch. The pump impresses with its long service life, absolute reliability and its low maintenance requirements.


This has been enabled thanks to 3 major innovations: 

  • Its low running temperature, which slows down potential corrosion processes and reduces the oil consumption. 
  • Its large oil reservoir ensures a low chemical concentration, which contributes to the prolongation of the oil exchange intervals. 
  • Its special inside coating increases the chemical resistance of the pump. 

Scope of delivery: Pump with motor, 3 line cords (EU/UK/US), 2 liters of oil, centering ring with dirt trap, centering ring, 2 clamping rings.

Technical Data

More Information
Article Number 3042-00
Max. pumping speed at 50 Hz in m³/h (l/min) 3.8 (63)
Max pumping speed at 60 Hz in m³/h (l/min) 4.6 (77)
Max. pumping speed at 60 Hz in cfm (l/min) 2.7 (77)
Ultimate pressure in mbar (Torr) without gas ballast 2×10-3
Ultimate pressure in mbar (Torr) with gas ballast 7×10-2
Wired for 115/230V, 50/60Hz
Intake connection DN 16 KF
Exhaust connection DN 16 KF
Sound level (dB) 50
Dimensions (W/D/H) in mm 463/157/230
Oil capacity in ml 1150
Operating temperature in °C 10 - 40
Weight kg (lbs) 21 (46.3)
Ship weight in kg (lbs.) 26 (57.3)
Shipping carton dimensions (W/D/H) in mm 566/330/330
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