Multi-Stage Roots Type Vacuum Pumps

RDA Series

RDA-281HA

Outline

This is a vacuum pump that evacuates by rotating the inside of the casing with two parallel rotors with a three-lobe cross section.

Features and Cautions on use

  • Dry vacuum pump achieves equivalent performance as oil rotary vacuum pump.
  • Operate in full pressure range from atmospheric pressure.
  • It is resistant to water vapor.
  • No need for cooling water.
  • Single phase / three phase power supply can be handled by one model.
  • No sliding part and long service life.

Specification

Pumping speed unit

Pressure unit

Item Unit 50Hz 60Hz
Actual Pumping Speed L/min 280 280
Ultimate Pressure Pa ≦8.0×10-2
Weight kg 38
Inlet, Outlet port diameter mm KF-25
Ambient temperature ℃ 5～40
Overall dimensions mm 180(W) × 588(L) × 377(H)
RoHS applied ●

Water capability : 300g/hr

Power Supply/Voltage

VoltageCertificateRemarks
Single phase, 100-115V/200-240V/Three phase, 200-240VCE, cTUVus

■TUV Certification: A high-quality product that complies with European standards as assessed by an international third party that conducts product safety testing and certification.

Outline Drawing

Pumping Speed Curves

Remarks

  • The pump is stopped when the lord is operated, and the pump can’t be operated just after that. In this case, please return the atmospheric pressure the inside of the pump.
  • If the pump evacuates the powder or the product, it might be damaged. Please use the inlet filter etc.
  • Do not evacuate gas which is hazardous to humans or explosive, flammable, or corrosive. If done, it can cause failure by gas, explosion or ignite.
  • It is a pump only in the room. Please do not set it up in the place, that rain and water splash, and outdoors.

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