Rotary vane - oil-lubricatedVacuum pumps
Rotary vane – oil-lubricated
Simplicity of design with only one shaft and direct drive produces robust, long-lasting vacuum pumps with low maintenance and running costs. The vanes are sealed by the metered supply of oil. Already equipped with integrated non-return valves and an efficient oil Separation system, these vacuum pumps can be fitted with other accessories without a problem.
The standard-featured circulating-oil lubrication system with integrated oil cooler and cover additionally minimise noise emission. Controlled by a float valve, the oil return suction system also makes these vacuum pumps suitable for use in rough-vacuum applications. Optional water cooling significantly prolongs the life of the oil, even in difficult ambient conditions.
Optional gas ballast valves prevent condensing vapours from contaminating the pump oil. The oil-water emulsion arising from contamination reduces the pump effi ciency or leads to a failure. The valve permits a regulated amount of fresh air (the gas ballast) to fl ow into the pump‘s compression chamber. By mixing saturated intake air with unsaturated fresh air, condensing is suppressed.
The new generation of oil-lubricated rotary vane vacuum pump: U 4.300
The new size between U 4.250 and U 4.400.
U 4.300 – U 4.250: comparison and differences:
- realization of faster pump-down times
- realization –for example– of more packaging cycles per unit time
|Max. suction air rate[m3/h] 50/60Hz||Max. vacuum[mbar abs.] 50/60Hz||Max. vacuum[mbar rel.] 50/60Hz||
Max. motor capacity[KW] 50/60Hz
|U 4.70 SA/K||63/74||3,0/3,0||-997,0/-997,0||2,40/3,00|
|U 4.70 F/K||63/74||0,5/0,5||-999,5/-999,5||2,40/3,00|
|U 4.100 SA/K||100/117||3,0/3,0||-997,0/-997,0||2,40/3,00|
|U 4.100 F/K||100/117||0,5/0,5||-999,5/-999,5||2,40/3,00|
|U 4.165 SA/K||162/190||3,0/3,0||-997,0/-997,0||4,00/4,80|
|U 4.165 F/K||162/190||0,5/0,5||-999,5/-999,5||4,00/4,80|
|U 4.190 SA/K||190/223||3,0/3,0||-997,0/-997,0||5,50/6,40|
|U 4.190 F/K||190/223||0,5/0,5||-999,5/-999,5||5,50/6,40|
|U 4.250 SA/K||244/276||3,0/3,0||-997,0/-997,0||7,80/9,30|
|U 4.250 F/K||244/276||0,5/0,5||-999,5/-999,5||7,80/9,30|
|U 4.400 SA/K||435/508||3,0/3,0||-997,0/-997,0||11,0/12,5|
|U 4.400 F/K||435/508||0,5/0,5||-999,5/-999,5||11,0/12,5|
|U 4.630 SA/K||624/732||3,0/3,0||-997,5/-997,5||15,0/18,5|
|U 4.630 F/K||624/732||0,5/0,5||-999,5/-999,5||15,0/18,5|