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Compact Oil-free Scroll Vacuum Pump with Air Flush system, 300 L/min - EQ-ISP250C-LD

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Item Number: ISP250C
IPS250C is a compact oil-free scroll vacuum pump with 250 L/min for 50Hz (300L/min for 60Hz) displacement. Less noise & vibration provide the better working environment. Built-in air flush system removes moisture automatically.

Model ISP-250C

  • Complete oil-free design
  • Compact and light weight
  • Energy saving = Less power consumption
  • Less noise / vibration
  • Less maintenance
  • Air flush system removes moisture

  • Single-phase (Three-phase and 400V power supply is available upon request at extra cost)
  • Output:   0.4 KW
  • Voltage: 120V~200V (Adjustable by changing terminal plate, for details please refer to operation manual)
Displacement  50Hz 250 L/min (4.2 L/s)
60Hz 300 L/min (5.0 L/s)
Ultimate pressure  ≦1.6 Pa  ( 1.2E-2 torr )
Max. vacuum level Around 20 mtorr (2.7 Pa)
Leak tightness  ≦1.0E-5 Pa・m3/s
Max. inlet pressure Atmospheric pressure
Ambient operating temperature 5℃~40℃
Noise level 1m dB(A)
With air-flush ON
Inlet connection NW25
Outlet connection NW16
Direction of inlet Vertical

  • 2 sets of KF25 clamps
  • 1 bellows
  • 1 set of KF16 clamp (For sealing the exhaust port )
Dimensions (mm) L×W×H 400×252×336
Mass (kg) 25
Cooling system Air-cooled
Compliance ELT Certification
Operation Instruction

Application Notes
  • Pumping speed and ultimate pressure remain the same during air-flush operation and standard operation.
  • Motor permissible voltage is ±10%.
  • Noise level is measured at the ultimate pressure in an anechoic room.
  • Vapor handling is less than 25g/day (25℃, humidity 60%RH) during air-flush operation. Air-flush volume is 10L/min.
  • The pump is the standard operation with 200V connection specifications when it is delivered to you.
  • Three-phase Motor is not equipped with motor protection gear. Be sure to fit the protective device.
  • To protect the environment & human health, please use Traps & Filters to minimize exhaust. 
  • To protect vacuum pump from damage by condensed vapors or small particles, please connect a cold trap or particle trap to the pump foreline ( click on the pictures below for details ).
  • Please choose a vacuum gauge by click picture below right
Warranty One year limited warranty with lifetime support (Attention: Improper use will cause all claims for liability and warranties to be forfeited. Improper use is deemed to be all use for purposes deviating from those mentioned in below, especially: 
  • Pumping of corrosive or explosive media.
  • Pumping of condensing vapors.
  • Pumping of liquids.
  • Pumping of dust.
  • Operation with improper high levels of insulated heat input.
  • Operation in potentially explosive are

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