VASF 2.50/2

Becker VASF 2.50/2 – VARIAIR Speed Flow side channel blower

The VASF 2.50/2 is a two-stage, air-cooled side channel blower with VARIAIR frequency converter. It delivers up to 24 m³/h (frequency 50–300 Hz) and, depending on the version, reaches down to −560 mbar relative in suction operation or up to +560 mbar relative in pressure operation. Dimensions 353 × 176 × 257 mm (AC); 353 × 173 × 233 mm (DC 24 V), suction and pressure connection G 1".

Versions

Becker offers the VASF 2.50/2 for various supply voltages and as a gas-tight compressor version:

• AC 200–230 V (-0.AC230): vacuum down to −560 mbar, pressure up to +560 mbar, 0.65 kW, max. 6 A, 61 dB(A), 12.3 kg
• AC 100–115 V (-0.AC115): vacuum down to −510 mbar, pressure up to +510 mbar, 0.60 kW, max. 10 A, 61 dB(A), 12.3 kg
• DC 24 V (-0.DC024): vacuum down to −550 mbar, pressure up to +550 mbar, 0.75 kW, max. 35 A, 65 dB(A), 11.5 kg
• Gas-tight (-1.AC230 / -1.AC115): 24 m³/h, max. pressure ratio 1.56 / 1.51 p/p, 0.65 / 0.60 kW, 59 dB(A), 11.5 kg, connections DN 25 ISO-KF; leak rate < 1 × 10⁻⁵ mbar·l/s (helium leak test, whole unit), pressure ratio measured for air

Speed control and contact-free compression

The volume flow can be set precisely via the speed. The impeller rotates without contact and the sealed bearings need no lubrication – the blower works oil-free.

Advice and service

Ehrler & Beck supports you in selecting the right version, supplies accessories and spare parts and carries out maintenance and repair.

Pumping speed 50Hz	24
Pumping speed 60Hz	24
Ultimate pressure	440
Weight	12.3
Length	35.3
Width	17.6
Height	25.7
Inlet connection flange	G 1"
Outlet connection flange	G 1"
Noise level	61 dB(A)
Cooling method	Air cooling
Oil type	Oil-free

Convert units: vacuum and pressure units · Nm³/h to m³/h

Additional technical data