Diaphragm Type Dry Vacuum Pumps DA-241S
Built-in type / Single-stage / with cord, and switch / with thermal protector


Diaphragm type pump creates vacuum by reciprocate movement of rubber diaphragms.
Pump structure makes Oil-free environment and maintenance easy.
Various pumping speed and two/single stages are selectable depends on your required pressure and pumping volume.


Vacuum chucks, wafer and tip handling devices.
Vacuum tweezers, medical appliances.
Printing equipment.
Automatic packing machines.
Optical appliances.
Semiconductor industry.

  Unit 50Hz 60Hz
Actual Pumping Speed L/min 240 260
Ultimate pressure Pa 16.0 × 103
Motor   Single phase, 100V, 400W, 4P, Capacitor run
Full load current A 5.2 6.0
Weight kg 26.0
Inlet, outlet pipe diameter mm O.D. dia.16 × I.D. dia.12 (G1/2)
Ambient temperature °C 0 – 40
Overall dimensions mm 207(W) × 411(L) × 285(H)

1. The pump will not often operate normally if it is used with corrosive gases, organic solvents, liquids, or condensed gases (eg steam).
The pump will not often operate normally if it is used with gases containing particles or dust etc.
2. It is a pump only in the room.
Please do not set it up in the place, that rain and water splash, and outdoors.

Outline Drawing

Pumping Speed Curves

Optional Voltage
Voltage Applicable Volt CE Marked TUV Marked cTUVus Marked
Single phase, 100V Standard
Single phase, 115V
Single phase, 200V
Single phase, 220–230V

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Copyright (C) 2003 ULVAC KIKO, Inc. All Right Reserved. Ver.4.00 (December 2011)
· The dimensions and specifications of the products listed in this site are subject to change without prior notice for improvement of their performance.