Two-Stage Rotary Vane Pumps

  • Consumes up to 36% less oil than comparable pumps
  • 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.
  • Max Pumping Speed 8 m3/h (133 l/min)
  • Ultimate Pressure 2x10-3mbar

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.

CRVpro8 vacuum pumps can be used for applications such as

  • freeze drying,
  • vacuum ovens,
  • schlenk lines,
  • backing turbo molecular pumps,
  • degassing,
  • vessel/chamber evacuation.

Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

 

How do explosion‑proof motors work?

This article explains how exhaust filtration systems in explosion‑proof motors manage hazardous fumes, reduce combustible particles, support explosion‑protection standards

PARAMETER

UNIT

CRVpro4

CRVpro6

CRVpro8

CRVpro16

CRVpro24

Free Air Displacement

– @ 50 Hz

m3/h (l/min)

4 (67)

6 (100)

8 (133)

18.3 (305)

26.2 (436)

– @ 60 Hz

CFM (l/min)

2.8 (78)

4.2 (118)

5.6 (158)

12.8 (363)

18.3 (519)

Pumping speed

– @ 50 Hz

m3/h (l/min)

3.8 (63)

5.1 (85)

7.3 (122)

16.8 (280)

24 (400)

– @ 60 Hz

CFM (l/min)

2.7 (77)

3.7 (105)

5.1 (143)

11.9 (336)

17 (480)

Ultimate Pressure

– Without gas ballast partial

mbar (Torr)

5x10-4 (4x10-4)

5x10-4 (4x10-4)

5x10-4 (4x10-4)

3x10-4 (2x10-4)

3x10-4 (2x10-4)

– Without gas ballast total

mbar (Torr)

2x10-3 (1.5x10-3)

2x10-3 (1.5x10-3)

2x10-3 (1.5x10-3)

3x10-3 (2x10-3)

3x10-3 (2x10-3)

– With gas ballast total

mbar (Torr)

7x10-2 (5x10-2)

7x10-2 (5x10-2)

7x10-2 (5x10-2)

6x10-3 (5x10-3)

6x10-3 (5x10-3)

Connection flanges

DN

16 KF

16 KF

16 KF

25 KF

25 KF

Ambient temperature

oC

10 - 40

10 - 40

10 - 40

10 - 40

10 - 40

Noise Level (50 Hz)

dB (A)

≤50

≤50

≤50

≤55

≤55

Oil Capacity

ml

1150

1150

1000

2400

2200

Motor speed

rpm 50/60 Hz

1450/1740

1450/1740

1450/1740

1450/1750

1450/1750

Motor power

kW 50/60 Hz

0.37/0.4

0.37/0.4

0.37/0.4

0.7/0.85

0.7/0.85

Weight

kg

21

22

22.5

37

38.5

Dimensions

L x W x H

mm

463/157/230*

463/157/230*

463/157/230*

569/206/289

*Without handle