U 4 Series

Oil-lubricated Rotary Vane Vacuum Pumps


Picture of a Becker U 4.20 oil-lubricated rotary vane vacuum pump.

U 4.20


Picture of a Becker U 4.40 oil-lubricated rotary vane vacuum pump.

U 4.40


Picture of a Becker U 4.70 to U 4.300 oil-lubricated rotary vane vacuum pump.

U 4.70 - U 4.300


Picture of a Becker U 4.400 to U 4.630 oil-lubricated rotary vane vacuum pump.

U 4.400 - U 4.630


  Models

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Model Max. Suction Air Rate
[cfm] 50 / 60Hz
Max. Vacuum
[in. Hg] 50 / 60Hz
Max. Motor Capacity
[hp] 50 / 60Hz
Noise
[dB(A)1] 50 / 60Hz
Weight
[lbs]
U 4.20 10.6 / 12.4 >29.50 / >29.49 0.7 / 0.9 63 / 67 44.1
U 4.40 24 / 28 29.83 / 29.83 2.0 / 2.4 69 / 71 81.8
U 4.70 37 / 44 29.83 (SA/K) / 29.9 (F/K) 3.2 / 4.0 67 / 68.5 138.9
U 4.100 59 / 69 29.83 (SA/K) / 29.9 (F/K) 3.2 / 4.0 67.5 / 69 145.5
U 4.165 95 / 112 29.83 (SA/K) / 29.9 (F/K) 5.4 / 6.4 71 / 74 269
U 4.190 112 / 131 29.83 (SA/K) / 29.9 (F/K) 7.4 / 8.9 73 / 76 351.7
U 4.250 144 / 162 29.83 (SA/K) / 29.9 (F/K) 10.1 / 12.1 73 / 76 399.2
U 4.300 177 / 212 <29.9 - 18.1 / <29.9 - 18.1 10.1 / 12.1 74 / 76 362.8
U 4.400 256 / 299 29.83 (SA/K) / 29.9 (F/K) 14.8 / 17.7 78 / 81 882
U 4.630 366 / 430 29.83 (SA/K) / 29.9 (F/K) 20.1 / 24.1 80 / 83 1201.8

1 DIN EN ISO 3744 (KpA = 3 dB(A)) interval of 39.4inch, at medium load, both connection sides piped

  Features

  • Vacuum up to 29.9 in.Hg
  • Cool running
  • Quiet
  • Compact
  • Highly efficient (99.9+%)
  • Optional gas ballast
  • Optional water cooling
  • Low maintenance
  • Low operating costs

  Dimensions

U 4.20


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.20 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.20 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.20 oil-lubricated rotary vane vacuum pump from an end perspective.

End View


Drawing showing the dimensions and positioning of the rubber feet of a Becker U 4.20 oil-lubricated rotary vane vacuum pump from a bottom perspective.

Feet Positioning

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Model a a1 a2 b b1 b2 d g g1 g2 g3 g4 h h1 h2 h4 h5 kM o o1 o2 s1 s2
U 4.20 + U 4.20/09 6.8 1.0 5.8 4.5 G1/2 9.8 6.5 2.0 6.5 12.1 4.5 7.8 8.9 8.8 5.8 13.1 2.5 1.9 0.9 M6

U 4.40


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All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.40 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.40 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.40 oil-lubricated rotary vane vacuum pump from an end perspective.

End View


Drawing showing the dimensions and positioning of the rubber feet of a Becker U 4.40 oil-lubricated rotary vane vacuum pump from a bottom perspective.

Feet Positioning

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Motor
U 4.40 + M#
L
G018909 18.6
G018957 18.6
G018933 18.6
G018981 18.6
G011669 18.2
G012134 18.2

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 Rubber buffer position
4 Gas ballast valve
(optional)

U 4.70


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All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.70 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.70 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.70 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.70 + M#
L
G017004 (SA/K)
G017023 (F/K)
28.2
G017184 (SA/K)
G017240 (F/K)
28.2
G017185 (SA/K)
G017241 (F/K)
28.4
G017183 (SA/K)
G017239 (F/K)
28.4

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.100


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All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.100 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.100 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.100 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.100 + M#
L
G017307 (SA/K)
G017013 (F/K)
30.3
G017948 (SA/K)
G017210 (F/K)
30.3
G017949 (SA/K)
G017211 (F/K)
30.5
G017947 (SA/K)
G017209 (F/K)
30.5

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.165


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.165 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.165 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.165 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.165 + M#
L
G017060 (SA/K)
G017079 (F/K)
33.7
G018197 (SA/K)
G018249 (F/K)
34
G018198 (SA/K)
G018250 (F/K)
33.7
G018196 (SA/K)
G018248 (F/K)
33.7

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.190


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.190 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.190 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.190 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.190 + M#
L
G017365 (SA/K)
G017110 (F/K)
40
G017785 (SA/K)
G018142 (F/K)
40
G017786 (SA/K)
G018143 (F/K)
40.2
G017787 (SA/K)
G018144 (F/K)
40
G018377 (SA/K)
G018370 (F/K)
40

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.250


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.250 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.250 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.250 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.250 + M#
L
G018405 (SA/K)
G018407 (F/K)
43.2
G018791 (SA/K)
G018793 (F/K)
43.2
G018557 (SA/K)
G018559 (F/K)
42.9
G018622 (SA/K)
G018624 (F/K)
43.2
G018875 (SA/K)
G018877 (F/K)
43.2

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.300


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.300 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.300 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.300 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.300 + M#
L
G018409 41.6
G018795 41.6
G018561 42.1
G018626 41.6
G018879 41.6
G018411 43.2
G021671 43.2
G018563 42.9
G018628 43.2
G018679 43.2

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position
5 Gas ballast valve
(optional)
6 Level transmitter
(optional)

U 4.400


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.400 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.400 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.400 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.400 + M#
L
G018413 (SA/K)
G018415 (F/K)
49.4
G018799 (SA/K)
G018801 (F/K)
49.4
G018481 (SA/K)
G018483 (F/K)
53.9
G018485 (SA/K)
G018487 (F/K)
49.4
G018681 (SA/K)
G018683 (F/K)
53.9

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position

U 4.630


Use the above the image to change the perspective.

All measurements are given in inches.



Drawing showing the dimensions of a Becker U 4.630 oil-lubricated rotary vane vacuum pump from a top perspective.

Top View


Drawing showing the dimensions of a Becker U 4.630 oil-lubricated rotary vane vacuum pump from a side perspective.

Side View


Drawing showing the dimensions of a Becker U 4.630 oil-lubricated rotary vane vacuum pump from an end perspective.

End View

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Motor
U 4.630 + M#
L
G018803 (SA/K)
G018804 (F/K)
60.6

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Position Description
1 Vacuum connection
(non-return valve integrated)
2 Exhaust air connection
3 PT100 connection
4 Rubber buffer position

  Downloads

Technical Data Sheets

Manuals

Spare Parts Lists

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