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Becker · U 4.400 SA/K

U 4.400 SA/K

Data coverage & sourcesCompare this modelAsk about this model
Oil-Lubricated Rotary VaneOEM data
Becker U 4.400 SA/K

Image: Becker

Pumping speed
508 m³/h
Max. vacuum
2.67 mbar
Motor power
13.2 kW
Noise level
81 dB(A)

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Becker product page · retrieved 2026-10-01
As publishedUS; SCFMUSUS; dB(A)US; without Motor
Open Flow SCFM
Pumping speed
299 SCFM
oem source
Source · 2026-10-01
Maximum Vacuum
Max. vacuum
2 Torr Torr
oem source
Source · 2026-10-01
Horsepower
Motor power
17.7 hp
oem source
Source · 2026-10-01
Noise Level dB(A)
Noise level
81 dB(A)
oem source
Source · 2026-10-01
Weight without Motor
Weight
882 lbs lbs
oem source
Source · 2026-10-01

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

Explore the parts

U 4.400 SA/K, pulled apart

Coupling1Bearings2Shaft seal3Cylinder / housing4Exhaust box / oil reservoir5Exhaust filters6Oil7Oil sight glass and plugs8Gas ballast and relief valves9Screws, washers, pins10

This model’s parts, by where they sit

Our drawing of the machine type, with the U 4.400 SA/K's own parts from Becker's lists. Side view along the shaft. Oil-free (dry) pumps have no exhaust box oil, sight glass or oil filter; their exhaust filter is a dust filter.

Reviewed operating performance · 60 Hz

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Documents

Documents open on the manufacturer’s site.

Service parts · 83

Filtration8
Rotating parts4
Fittings and hardware49
Lubrication3
Seals and gaskets1
Housing and covers6
Valves2
Cooling2
Controls and instruments1
Other parts7

Part numbers from Becker’s parts lists, shop and instruction manuals. Open a part for its other models, replacements and suppliers.

Compare with another model

Parts diagrams

Exploded views from Becker’s own documents, with each position and part number as printed. Select a part to see what it fits, who sells it and what replaces it.

Exploded view · Download Spare Parts List (U 4.400 SA/K), page 780 positions

The positions on this drawing haven’t been placed yet: choose a position in the list for its part. Drag to move, pinch or Ctrl + scroll to zoom.

Select a part on the drawing or in the list to see its number, what it fits and where to get it. Turn on “select several” to build one quote for many parts.

Pos.Part numberDescriptionQty
00010026600PUMP BODY 178 030701 26600 VALVE WASHER
02000026600ROTOR 179 030702 26600 VALVE WASHER
95121200000SCREWED SEALING PLUG 180 016801 26600 CLAMPING DISC
90058000003PLASTIC VANES (KIT) 182 928603 20000 PRESSURE SPRING
03070326600WASHER 183 016800 26600 CLAMPING DISC
90661750000BEARING 184 028500 26600 VALVE BOLT
90660000700INTERIOR RING 186 947104 00000 HEX.NUT
90660000800INTERIOR RING 187 013300 26600 METAL FILTER
94533100000INNENSECHSKANTSCHRAUBE 39 945331 00000 SOCKET HEAD SCREW
94820900000SEEGER-LOCKRING 189 947506 00000 WASHER
90659500000SHAFT SEALING RING 192 947107 00000 HEX. NUT
91287100000VERSCHLUSSSCHRAUBE / LOCKING SCREW / BOUCHON / VITE DI CHIUSURA / TORNILLO DE CIERRE
00080026600LID 197 947820 00000 KEY
00070026600LID 198 062900 26600 WASHER
95121100000LOCKING SCREW 202 053200 26600 CONNECTION FLANGE
94874400000GROOVED PIN 203 945388 00000 SOCKET HEAD SCREW
94539000000SOCKET HEAD SCREW 204 947515 00000 WASHER
00560026600COVER 205 948511 00000 SPRING WASHER
02910026600VALVE SUPPORT 208 003702 26600 COVER
03390426600VALVE PLATE 211 003701 26600 COVER
92860310000PRESSURE SPRING 212 945333 00000 SOCKET HEAD SCREW
00780026600FLANGE 215 741341 00000 RUBBER BUFFER
94822500000LOCKING RING 216 945633 00000 THREADED PIN
00800026600SIEVE 217 068001 26600 SPACING COLLAR
94535100000SOCKET HEAD SCREW 238 945336 00000 SOCKET HEAD SCREW
94696700000STUD 222 560200 26600 COOLER
00370026600COVER 223 945349 00000 SOCKET HEAD SCREW
94741000000CAP NUT 224 951710 00000 SPRING DISC
95160400000RING UNIT 227 902102 26600 COUPLING MOTOR SIDE
94751400000WASHER 228 902227 00000 COUPLING DISC
00240026600HOUSING FOR OIL SEPARATION 229 068004 26600 SPACER BLOCK
02280026600FILTER HOLDER 231 946962 00000 STUD
95104902000STUD 233 947109 00000 HEX. NUT
03390126600VALVE PLATE 234 947509 00000 WASHER
03070026600VALVE WASHER 236 961710 00000 ELBOW
91755104000DISTANCE DISC 237 972308 00000 THREADED JOINT
94812804000SEEGER LOCKRING 238 512204 26600 OIL PIPE
92860280000PRESSURE SPRING 239 512200 26600 OIL RETURN PIPE
95018500000SEEGER-LOCKRING 241 012204 26700 PIPE
00560326600COVER 243 761703 01000 THREADED JOINT
94563700000THREADED PIN 244 012206 26600 PIPE
06800526600SPACER BLOCK 245 012207 26600 PIPE
96541000000OIL SEPARATION ELEMENT (2x) 2) 247 961709 00000 ELBOW
06800826600SPACER BLOCK 248 064101 57000 RUBBER PROFIL
95104102000STUD 251 009400 19000 HOLLOW HOLDING SCREW
50600012900COARSE SEPARATOR (3x) 2) 255 518300 26600 PROTECTING HOOD
03070110700WASHER 256 945389 00000 SOCKET HEAD SCREW
94740200000CAP NUT 290 060900 26600 SILENCER
00250426600OIL SEPARATOR COVER 291 943400 90000 TEMPERATURE PROBE
94539100000SOCKET HEAD SCREW
94539200000SOCKET HEAD SCREW
00250026600OIL SEPARATOR COVER
94535300000HEXAGON SOCKET SCREW M10X60
94535000000SOCKET HEAD SCREW
00800326600SIEVE
86780099559FLOAT
91230000000CONNECTING SCREW
00330010700NOZZLE
01240026600ZWISCHENSTÜCK / INTERMEDIATE PIECE / BRIDE / FLANGE / PIEZA INTERMEDIA
00250126600OIL SEPARATOR COVER
56020126600ROHRHEIZKÖRPER / PIPE HEATER / CORPS DE CHAUFFE / SCALDIGLIA / CALEFACTOR TUBULAR
56020226600KÜHLER / COOLER / REFROIDISSEUR / RAFFREDDATORE / REFRIGERADOR
90730900000OIL SIGHT GLASS
95122000100VERSCHLUSSSCHRAUBE / LOCKING SCREW / BOUCHON / VITE DI CHIUSURA / TORNILLO DE CIERRE
94802900000KUPFERRING / SEALING RING / JOINT / ANELLO / ANILLO DE COBRE
91680010000COVER
94340070000TEMPERATUR-WÄCHTER / THERMOSTAT / THERMOSTAT / INTERRUTTORE TERMICO / TERMOSTATO
30030007000REDUZIER-NIPPEL / REDUCING BUSHES / MAMELONS REDUITS / RACCORDO DI REDUZIONE / BOQUILLA DE REDUCCIÓN
94694500000STUD
95122100000LOCKING SCREW
95122100100VERSCHLUSS-SCHRAUBE / LOCKING SCREW / BOUCHON / VITE DI CHIUSURA / TORNILLO DE CIERRE
74110399682NIVEAUGEBER / LEVEL TRANSMITTER / CAPTEUR DE NIVEAU / INDICATORE DI LIVELLO / CODIFICADOR DE NIVEL
06460026600FILTER INSERT U 4.400 USA all types
00800226600SIEVE
06800626600SPACER BLOCK
92860330000PRESSURE SPRING
50230126600COUPLING WITH FAN
94840100000HOLLOW SCREW
94522400000HEX-HEAD SCREW 184 951916 00000 RUBBER BUSHING
06809326600068004 26600 DISTANZSTÜCK / SPACER BLOCK / PIECE D`ECARTEMENT / DISTANZIATORE / PIEZA DISTANCIADORA
94750900000U-SCHEIBE / WASHER / RONDELLE / RONDELLA / ARANDELA
03790026700ZWISCHENFLANSCH / FLANGE / BRIDE / FLANGIA / BRIDA INTERMEDIA

Positions and part numbers as printed in Becker’s Download Spare Parts List (U 4.400 SA/K), page 7 · view the source document