Leybold RUVAC WHU 4400 - REBUILT

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In stock
SKU
REBUILT_WH/WHU4400
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.

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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    mx h-1 4,400 5,280 7,040 7,000 8,400 9,800
Max. effective pumping speed w/ SP 630 backing pump    mx h-1 3,300 3,900 4,800 4,700 5,300 5,800
    + RUVAC WS 2001    mx 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