The store will not work correctly when cookies are disabled.
JavaScript seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Javascript in your browser.
Leybold RUVAC WHU 4400 - REBUILT
Weight
1,369 lbs
Motor Power
14.75 hp
Pumping Speed
4,400 m3 /h
Ultimate Pressure
4.5 x 101 mbar
Leybold RUVAC WH / WHU 4400 Roots Vacuum Blower - REBUILT
The RUVAC WH and RUVAC WHU are Roots boosters driven by water cooled hermetically sealed motors. The WHU types have a pressure balance line between the discharge and intake flanges. The RUVAC WH and WHU are lubricated with synthetic oil or perfluorized polyether (PFPE). Only specially prepared RUVAC WH / WHU PFPE pumps can be used for pumping oxygen greater than atmospheric concentration. Only RUVAC WH / WHU PFPE pumps can be used for pumping very aggressive or hazardous gasses.
Questions? send an email to our sales team!
Specifications
WH / WHU 4400
WH / WHU 7000
Frequency
50 Hz
60 Hz
80 Hz
50 Hz
60 Hz
70 Hz
Nominal pumping speed acc. to DIN 28426 m3 x h-1
4,400
5,280
7,040
7,000
8,400
9,800
Max. effective pumping speed w/ SP 630 backing pump m3 x h-1
3,300
3,900
4,800
4,700
5,300
5,800
+ RUVAC WS 2001 m3 x h-1
3,700
4,400
5,800
5,700
6,800
7,800
Max. permissible pressure difference
WH for continuous operation1)
30 - 45 mbar
20 - 30 mbar
8 - 12 mbar
20 - 30 mbar
14 - 21 mbar
11 - 14 mbar
WHU for short cycle operation < 2 min
90 mbar
-
70 mbar
-
Leak rate
1 x 10-5 mbar l/s
Permissible ambient temperature
10 - 40°C4)
Storage temperature
-10 to +60°C
Mains voltage
400 (200) V2)
460 (210) V2)
FC
400 (200) V2)
460 (210) V2)
FC
Rated power consumption
11 / 18.5 kW
Nominal current for 400 / 460 V (200 / 210 V)
w/ 11 kW motor
20 (41) A
17 (41) A
-
20 (41) A
17 (41) A
-
w/ 18.5 kW motor
35
29
-
35
29
-
Idle power consumption
0.7 kW
0.8 kW
1.0 kW
0.9 kW
1.0 kW
1.2 kW
Nominal speed
3,000 rpm
3,600 rpm
4,800 rpm
3,000 rpm
3,600 rpm
4,200 rpm
Max. permissible speed3)
4,800 rpm
4,200 rpm
Motor efficiency class calculated and configured acc. to EN 60034-30
IE2 / IE36)
Protection class acc. to EN 60529
IP 55
Lubricant filling (vertical/horizontal)
4.75 / 1.8 L
Connecting flange
Intake
DN 250 ISO-K
DN 320 ISO-K
Discharge
DN 160 ISO-K
Materials - components in contact w/ gas in the pump chamber
Grey cast iron/graphite cast iron/FKM/steel/stainless steel/epoxy paint
Weight
590 / 620 kg
650 / 700 kg
Noise level acc. to DIN EN ISO 2151
< 63 dB(A)5)
Specifications
Type
Label
Description
Download
Leybold RUVAC WH / WHU Series - REBUILT
Instruction Manual
Download
Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.
Leybold RUVAC WH / WHU 4400 Roots Vacuum Blower - REBUILT
Part no. 155158V / 155 158V
Pumping speed at 50 Hz: 4,400 m3 /h
Pumping speed at 80 Hz: 7,040 m3 /h
Ultimate pressure: upon request
3-phase motor: 400 V, 60 Hz
Operating fluid: LEYBONOL LVO 130
