• Oil Diffusion Vacuum Pump
  • Oil Diffusion Vacuum Pump
  • Oil Diffusion Vacuum Pump

Oil Diffusion Vacuum Pump

Description

Main USES: Diffusion pumps are used in machinery, petroleum, chemical industry, pharmaceuticals, ceramics, sugar making, printing and dyeing, metallurgy and electronics industries.

Payment Terms : L/C,T/T,

Preventive Measures of Diffusion Pump
Specific measures for eliminating oil vapor reflux in the system
(1) Increase the starting power of the diffusion pump to shorten the pressure transition zone when the mechanical pump and the diffusion pump switch.
(2) Avoiding the dangerous area of backflow (switching the transition zone) by changing the operation process of the system and using valves. For example, a high vacuum valve which can be opened at a predetermined speed can be gradually opened to ensure that the gas flow into the diffusion pump is lower than its larger exhaust volume, and that the mechanical pump pumping speed can ensure the pressure of the diffusion pump front stage, so that the diffusion pump can set up work. In this way, the transition zone can be avoided.
(3) Improve the operation technology, and adjust the heating power of the diffusion pump to a better power to avoid the phenomenon of pump oil explosion and boiling; in general, the peak value of reflux will appear during the beginning and closing of the heating process of the diffusion pump, so the high vacuum valve at the pump mouth can be used to control the avoidance of reflux.
(4) Adding liquid hydrogen cold trap or adsorption trap at the entrance of diffusion pump to capture reflux oil vapor.
(5) Selection of high-quality diffusion pump working fluid.

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Item KT-100 KT-160 KT-200 KT-250 KT-300 KT-320 KT-400 KT-500
Ultimate pressure (Pa) 5×10-5
Pumping Capacity (L/S) 550 1800 2800 3500 4600 5000 8500 12000
Critical fore-pump pressure (Pa) 40
Backflow rate mg/(cm2·min) ≤3×10-2
Heating time ( min) ≤30 ≤35 ≤40 ≤45
Heating Power (kw) 0.8-1 1.4-1.6 1.6-1.8 2.2-2.4 2.4-3 4~5 4~5 6~8
Electric Voltage (AC)V 220 380
Pump Oil Model KS-3
Pump Oil Volume ( L) 0.15 0.45 0.55 1-1.4 1-1.6 1.4-1.8 3~4 4
Cooling water consumption (L/H) 180 250 300 350 400 420 500 600
Inlet dimension (mm) 100 160 200 250 300 320 400 500
Outlet dimension (mm) 32 50 65 65 80 80 100 100
Recommended forepump speed (L/s) 4 8 15 15 30 30 70 150
Dimension
(mm)
L(Length) 320 420 530 473 695 725 885 1010
B(Width) 260 315 390 450 505 525 665 815
H(Height) 365 505 575 650 726 830 925 1165
Net weight (kg) 14 31 39 48 89 100 175 185