Pfeiffer Vacuum

BA 251, 3-phase motor, 230/400 V, 50 Hz, without HV safety valve

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Overview
  • Single-stage, high-performance rotary vane pump with a pumping speed of 250 m3/h
  • 3-phase motor for 230/400 (± 5 %) V, 50 Hz
  • Process integrity thanks to integrated gas ballast valve
  • Without HV safety valve
  • For low and medium vacuum applications
  • Other motor voltages available on request

Product view

PK C42 602
Order number: PK C42 602
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Technical data
Ambient temperature 12-40 °C | 53.6-104 °F | 285-313 K
Cooling method, standard Water
Cooling water consumption > 50 l/h
Cooling water pressure 2,000-10,000 hPa | 1,500-7,500 Torr | 2,000-10,000 mbar
Cooling water temperature 10-30 °C | 50-86 °F | 283-303 K
Emission sound pressure level without gas ballast at 50 Hz 63 dB(A)
Exhaust pressure, max. 1,500 hPa | 1,125 Torr | 1,500 mbar
Exhaust pressure, min. Atmospheric pressure
Flange (in) DN 63 ISO-F
Flange (out) DN 63 ISO-K
Mains cable No
Mains requirement: voltage (range) ±5 %
Mains requirement: voltage 50 Hz 230/400 V
Motor protection 3TF
Nominal rotation speed at 50 Hz 1,500 rpm | 1,500 min-1
Nominal rotation speed pump, 50 Hz 490 min-1
Operating fluid P3
Operating fluid filling 17 l
Protection category IP55
Pumping speed at 50 Hz 250 m³/h
Pumping speed range 250 m3/h
Rated power 50 Hz 11 kW
Rotation speed at 50 Hz 490 rpm | 490 min-1
Switch No
Ultimate pressure with gas ballast 1 hPa | 0.75 Torr | 1 mbar
Ultimate pressure without gas ballast 5 · 10-2 hPa | 3.75 · 10-2 Torr | 5 · 10-2 mbar
Weight: with motor 570 kg | 1,256.62 lb

Sound pressure level according to ISO 3744, class 2

Accessories
Stainless Steel 304/1.4301
Pressure monitor for cooling water circuit BA 251/501
Resistance thermometer PT 100
Vibration isolators for BA 251/501
Cooling water connection unit for BA 251/501
Operating fluid level monitoring
Conversion kit
Magnetic gas ballast valve
VFS 016 venting valve
Condensate separators
OME M
Dust separator
KLF
KLF 063, cold trap (PK Z80 010)
Request product
Operating fluid return line from operating fluid mist filter
ISO-K
PTC resistor tripping unit for PTC resistor sensor
Consumable
P3, mineral oil, 1 l (PK 001 106 -T)
Request product
P3, mineral oil, 5 l (PK 001 107 -T)
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P3, mineral oil, 20 l (PK 001 108 -T)
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Dimensions

Massbild-TIM-RS

Characteristic

Kennlinie-TIM-RS-1

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Your local contact

Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua
USA

T: +1 (800) 248-8254
F: +1 (888) 658-7983

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