VT 4.2 1Ph 230 V 50/60 Hz

The Becker VT 4.2 is a dry-running rotary vane vacuum pump with a pumping speed of 1.9 m³/h at 50 Hz (2.3 m³/h at 60 Hz) and a vacuum down to 400 mbar absolute. It works oil-free, is air-cooled and comes with inlet filter and vacuum regulating valve already fitted. Ehrler & Beck advises on selection, accessories and service.

Request a quote for this product Read more

Pumping speed 1.9 m³/h 50 Hz 2.3 m³/h 60 Hz
Ultimate pressure 400 mbar
Rated motor power 0.09 kW 50 Hz 0.105 kW 60 Hz

Available variants
Motor variant	Motor order number
1Ph 230 V 50/60 Hz	40623427271

Becker VT 4.2 – oil-free rotary vane vacuum pump for rough vacuum

The VT 4.2 delivers 1.9 m³/h at 50 Hz and 2.3 m³/h at 60 Hz and reaches a vacuum of 400 mbar absolute. The single-phase motor delivers 0.09 kW at 50 Hz and 0.105 kW at 60 Hz. The sound pressure level is 56 dB(A) (50 Hz) or 58 dB(A) (60 Hz), the weight with motor 7.0 kg. Dimensions 222 × 156 × 166 mm (L × W × H), suction connection G 1/4".

Dry-running rotary vane principle

The pump is designed for continuous operation in the rough vacuum range. Its self-lubricating vanes run without oil – there is no oil change, and the conveyed air stays free of oil. This makes the VT 4.2 a solution for applications that require a clean environment. The operating point can be set with the integrated vacuum regulating valve.

Design and equipment

The motor drives the rotor directly via the motor shaft – this keeps the pump compact and makes installation easier. The robust design is intended for long running times even under demanding conditions, and maintenance can be carried out on site.

Large integrated inlet filter
Combined vacuum regulating and safety valve
Noise-optimised blow-off valve
Base

Advice and service

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

Pumping speed 50Hz	1.9
Pumping speed 60Hz	2.3
Ultimate pressure	400
Rated motor power 50Hz	0.09
Rated motor power 60Hz	0.105
Weight	7
Length	22.15
Width	15.6
Height	16.6
Inlet connection flange	G 1/4"
Noise level	56 dB(A)
Cooling method	Air cooling
Oil type	Oil-free

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

Further technical data

Motor	Data
Motor order number	40623427271
Pump types according to Becker	VT 4.2 DT 4.2
Phases	1~ (single-phase)
50 Hz	0.09 kW (0.12 hp) · 230 V · 1320 min⁻¹ · 1.11 A
60 Hz	0.105 kW (0.14 hp) · 230 V · 1570 min⁻¹ · 1.07 A
Version	CE IP54 • ISO F • PTO
Motor length M1	173.0 mm
Overall length L1 with pump	221.5 mm
Motor data according to	Becker Motor Specifications for Pumps and Blowers (09/2026), item 1-01

Additional technical data

Technical data	Value
Design	Rotary vane vacuum pump, dry-running (oil-free), air-cooled
Pumping speed 50 Hz / 60 Hz	1.9 / 2.3 m³/h
Vacuum (absolute)	400 mbar
Installed motor power 50 Hz / 60 Hz	0.09 / 0.105 kW (single-phase motor)
Sound pressure level 50 Hz / 60 Hz	56 / 58 dB(A) (DIN EN ISO 3744, 1 m)
Weight with motor	7.0 kg
Dimensions L × W × H	222 × 156 × 166 mm
Suction connection	G 1/4"
Reference data	1000 mbar, 20 °C, tolerance ±10 %

Product name	Part number
Maintenance kit (VT/DT 4.2/4.4)	573300 27100
Blow-off valve	727500 99689
Gasket (variant /0-28, with handle)	008900 15900
Gasket 0.127 mm	903247 00000
Gasket, violet, 0.254 mm	903248 00000
Filter element	909580 00000
Housing	000100 27100
Housing (variant /0-28, with handle)	000102 27100
Handle (variant /0-28, with handle)	021500 15900
Hex socket screw	945307 00000
Hex socket screw	945312 00000
Socket head screw (variant /0-28, with handle)	945320 00000
Carbon vanes (set)	901387 00005
Rotor	020000 27100
Rotor (VT 4.2 + VT 4.4) (variant /0-05, corrosion protection)	020001 27100
Round disc	960600 03000
Side cover	000700 27100
Vacuum regulating valve	736000 99688
Screw plug G 1/4	951228 02000
Screw plug G 3/8	951228 00000