U 4.165

Becker U 4.165 – outdated model

Becker no longer lists the U 4.165 in its current range: its documents are in the archive of the Becker download centre, and the Becker product range catalogue 01/2026 lists only the U 4.400 and the U 4.630 in the U 4 series. Becker names no successor. In the Ehrler & Beck range, the Becker U 5.166 is the nearest in size, with 165 m³/h at 50 Hz and an ultimate pressure of 0.1 mbar.

Technical data

According to the Becker data sheet of 27.06.2014, the U 4.165 delivers 162 m³/h at 50 Hz and 190 m³/h at 60 Hz (tolerance ±5 %); the ultimate pressure is 3 mbar (SA/K) or 0.5 mbar (F/K) absolute. The three-phase motor has a power of 4.0 kW at 50 Hz and 4.8 kW at 60 Hz (efficiency class IE2). Sound pressure level 71 / 74 dB(A) at 50 / 60 Hz. The pump weighs 89 kg without motor; the motor weighs 33 (UL/CSA motor: 31.5) kg. Overall length with motor 856 or 863.5 mm, width 531 mm, height 355 mm. Suction connection G 2", exhaust connection G 1 1/2"; oil filling 7 l (Becker Lube M 100, S 100 or SL 100). A non-return valve and a PT100 temperature sensor are built in.

Order numbers

Becker assigned a separate order number to each combination of version and motor (pump with motor):

Versions

Becker listed the versions U 4.165 GB with gas ballast valve, U 4.165-25 with oil-water cooler, U 4.165-51 with oil bath heater, level sensor and thermostat, and U 4.165 (F 110) with inlet filter F 110. For pumps in service, Ehrler & Beck supports you with service and with the selection of a current model.

Pumping speed 50Hz	162
Pumping speed 60Hz	190
Ultimate pressure	0.5
Rated motor power 50Hz	4
Rated motor power 60Hz	4.8
Motor efficiency class	IE2
Length	86.35
Width	53.1
Height	35.5
Inlet connection flange	G 2"
Outlet connection flange	G 1 1/2"
Noise level	71 dB(A)
Cooling method	Air cooling