KN Series oil diffusion pump

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In Stock
Description: The pumps in the KN series are high-vacuum pumps. They are always operated in conjunction with forevacuum pumps.Acquiescent flange is CF standard with bolted type.
Email : contact@evpvacuum.com(your request will be responsed within 1 hour.)
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KN series are the equipment mainly used for getting the high vacuum condition (10-1 – 10-5 Pa); the pumping capacity is big, the pumping speed can be changed range from 3100L/s to 110000L/s, it adds observation windows, oil inlet and outlet, the protection device of controlling pump oil overheat, the alarm device of controlling cooling water overheat, and parallel combination of many heating rods insert into the pump, the rods can be replaced without shutting down the machine, so heat time is short, Oil vapor back-streaming volume is low, without external water cooling baffle,when using the common pump oil, the volume is 1*10-3mg/㎡min , when using 275 silicon oil it will be 1* 10-4mg/㎡min, excellent ultimate vacuum, less than 10-6kpa.

The pumps adopt stretching process, reduces weld crack and out gassing and increases strength.

It is widely used in vacuum coating, vacuum furnace, electron, aviation, aerospace hi-tech field.

Technical Data

Item unit KN-250 KN-320 KN-400 KN-500 KN-630 KN-800 KN-900 KN-1000 KN-1200 KN-1400 KN-1600
Ultimate pressure Pa 5×10-5
Capacity L/s 3100 4600 7500 11000 18000 26000 33000 40000 55000 80000 110000
Fore pump pressure Pa 40
Back-flow rate mg/(cm2·min) ≤3×10-2
Heating time min ≤20 ≤30 ≤50
Heating power kw 2.2-2.4 3.5-3.8 6 7.2-8 12 19.2 21.6 24 30-32 34-38 40-44
Voltage V 220 380
Oil Model / KS-3
Oil volume L 1.2-1.5 1.6-1.8 3-4 5-6 7-8 14-15 16-18 18-20 22-25 28-30 32-34
Cooling water consumption L/h 350 420 500 600 850 1200 1350 1500 2600 3000 3600
Inlet diam mm 180 320 400 500 630 800 900 1000 1200 1400 1600
Outlet diam mm 63 63 63 100 100 160 160 160 200 200 200
Fore pump speed L/s 8-15 15-30 30-70 70-150 70-600 150-600 300-1200 300-1200 300-1200 350-1200 350-1200
 

 

Outline dimensions

L   mm 475 590 760 900 1050 1290 1485 1650 2175 2235 2525
B  mm 460 540 720 810 900 1150 1300 1360 1610 1750 1836
H  mm 560 672 785 940 1130 1450 1630 1880 2130 2650 3010
Net weight kg 50 70 95 258 340 472 740 850 900 1150 1350

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