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Product / Equipment

CRVpro 4 Two-Stage Rotary Vane Vacuum Pump

(Equipment / Material)
CRVpro 4 Two-Stage Rotary Vane Vacuum Pump
Model Number: CRVpro 4
Condition: New
Made in: Germany
Location or Storage Country: Germany
Service Engineering Support: Yes
Warranty: No
Price: Call for price
Description:
The CRVpro 4 is a two-stage, oil-sealed rotary vane vacuum pump designed for high reliability, low maintenance, and long equipment life. It features forced oil lubrication, anti-suckback valve, gas ballast with inert gas option, and dual voltage motor. The pump runs 10°C cooler than comparable pumps, reducing chemical activity and slowing oil consumption. The oil case has a PTFE coating and the pump module has a black oxide coating to slow metal corrosion. Applications include freeze drying, vacuum ovens, Schlenk lines, backing turbo molecular pumps, degassing, and vessel/chamber evacuation.
Overview:
Free Air Displacement @ 50 Hz4 m³/h (67 l/min)
Free Air Displacement @ 60 Hz2.8 CFM (78 l/min)
Pumping Speed @ 50 Hz3.8 m³/h (63 l/min)
Pumping Speed @ 60 Hz2.7 CFM (77 l/min)
Ultimate Pressure (Without Gas Ballast Partial)5×10⁻⁴ mbar (4×10⁻⁴ Torr)
Ultimate Pressure (Without Gas Ballast Total)2×10⁻³ mbar (1.5×10⁻³ Torr)
Ultimate Pressure (With Gas Ballast Total)7×10⁻² mbar (5×10⁻² Torr)
Connection FlangeDN 16 KF
Ambient Temperature10–40 °C
Noise Level (50 Hz)≤55 dB(A)
Oil Capacity450 ml
Motor Speed (50/60 Hz)1440/1720 rpm
Motor Power (50/60 Hz)0.29/0.3 kW
Weight21 kg
Dimensions (L x W x H)463 x 157 x 230 mm
Key FeaturesCool running (10°C cooler), PTFE-coated oil case, black oxide coating, forced oil lubrication, anti-suckback valve, gas ballast, dual voltage motor, IP54
CertificationsCE, cUL
Documentation:
Attached file #1
#vacuum #Pump #rotary #vane #CRVpro
Company Profile

Welch Vacuum

Markets: Laboratories, research institutions, pharmaceutical, chemical, medical, semiconductor, and industrial manufacturing companies
Locations: Livry-Gargan-Str. 10, 82256 Fürstenfeldbruck, Germany
Main Products/Services: Two-Stage Rotary Vane Pumps (CRVpro Series), Diaphragm Pumps, Turbo Molecular Pumps, Vacuum Gauges (Bourdon Gauges), Fluid Aspiration Systems (BioVac 106), Vacuum Accessories, OEM Pumps
Year Established: 1859