The Becker U 4.250 SA/K vacuum rotary vane pumps. The peak pumping speed up to 173 SCFM at 60 Hz. U 4.250 SA/K has the nominal rotation speed 1735 rpm at 60 Hz. The weight of U 4.250 SA/K is 243 lbs. Noise level U 4.250 SA/K is 76 dB at 60 Hz. Three phase with main requirement voltage 208/230/460 V at 60 Hz.
The Becker U 4.250 SA/K is oil flooded rotary vane vacuum pump with two stage oil separation, pressure differential lubrication, integrated anti-suck back valve, air-cooled oil cooler, horizontally mounted external inlet filter, initial charge of Becker’s synthetic oil, and coupled to a 10 HP, 208/230/460 volt, 3 phase, 60 Hz., TEFC motor.
The Becker U 4.250 SA/K rotary vacuum pumps are cool running, quiet, and highly efficient.
Providing vacuum to 29.9 in.Hg (0.4 Torr), our compact, direct-drive, oil-flooded pumps operate on a semi-synthetic oil and offer gas ballast as an option. Our multi-stage oil separation system is 99.9+% efficient.
If you want reliability and durability combined with industry-leading performance, you want a Becker rotary vacuum pump.
The Becker U 4.250 SA/K gas ballast valve (as standard from U 4.250 SA/K and with increased volumetric flow as an option) prevents the condensation of steam as far as possible. The gas ballast lets a measured amount of fresh air enter the compression chamber. By mixing saturated intake air with unsaturated fresh air, condensing is kept to a minimum. In addition, the protective cover supplied as standard minimises noise emissions.
An optional water cooling system allows the pump to be operated in higher ambient temperatures or with higher intake temperatures; the service life of the lubricant is also significantly increased. A wide range of accessories complements the pump, making it ideal for various tasks.
Applications include the graphic arts, packaging, vacuum chucking, robotics and material handling, medical/surgical, and air sampling among others.


A&J Vacuum Services offers full repair/service of Becker Pumps, along with all other brands offered on our website. Please contact us for information about our service and repair program or click http://www.ajvs.com/service.php to access our services page. We also offer emergency service upon request. For more information, please email A&J Vacuum Services at info@ajvs.com or call (973) 249-0854. Thank you for choosing AJVS as your supplier.