Welch CRVpro Rotary Vane Vacuum Pumps

Welch SKU: WELCH-3041-01
Welch CRVpro Rotary Vane Vacuum Pumps
Welch CRVpro Rotary Vane Vacuum Pumps
Welch CRVpro Rotary Vane Vacuum Pumps

Welch CRVpro Rotary Vane Vacuum Pumps

Welch SKU: WELCH-3041-01
Size
Regular price $3,160.00
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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 freeze drying, degassing, vacuum ovens and concentrators.
Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

Manuals and Documents

CRVpro 4-6-8 Manual
CRVpro 30 Manual
CRVpro Series Datasheet

TECHNICAL DATA

PARAMETER

UNIT

CRVpro 4

CRVpro 6

CRVpro 8

CRVpro 30

Free air displacement

-@5OHz

m3/h (l/min)

4 (67)

6 (10o)

8 (133)

33.1 (551)

-@6OHz

CFM (l/min)

2.8 (78)

4.2 (118)

5.6 (158)

22.1 (627)

ultimate pressure

- Without gas ballast partial

mbar (Torr)

5x10-4(4x10-4)

3x10-4(2x10-4)

- Without gas ballast total

mbar (Torr)

2x10-3(1.5x10-3)

3x10-3(2x10-3)

- With gas ballast total

mbar (Torr)

7x10-2(5x10-2)

6x10-3(5x10-3)

Connection flanges

NW

16

25

Hose connection, inlet*

ID Tubing

5/8"- 3/4" (16-19 mm)

3/4" (19 mm)

Ambient temperature

10-40

Noise level (50 Hz)

dB (A)

5o

55

oil capacity

ml

1150

1000

2100

Motor speed

rpm 50/60Hz

1450/1740

1450/1750

Motor power

kW 50/60Hz

0.37/0.4

0.7/0.85

Weight

kg (Ibs.)

21 (46.3)

22 (48.5)

22.5 (49.6)

39.5 (87)

Dimensions, LxWxH

mm (inch)

463/157/230 (18.2/6.1/9.1)

569/206/289 (22.4/8.1/11.4)


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