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Oil diffusion vacuum pump wholesale

Min.Order Quantity: 1 Set/Sets Oil diffusion vacuum pump wholesale

Supply Ability: 400~700 Set/Sets per Month Oil diffusion vacuum pump wholesale

Payment Terms: L/C,T/T,


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 Oil diffusion vacuum pump is a vacuum pump pumped by high-speed and directional flow of oil vapor jet. The oil diffusion pump must be used in conjunction with the front-stage vacuum pump, and must be opened under certain conditions of the front-stage vacuum. The limit vacuum of the oil diffusion pump can reach 10-7 mbar (absolute pressure).

 
Oil diffusion pump is the main equipment to obtain high vacuum. It is widely used in high vacuum distillation, vacuum smelting, vacuum coating, space simulation test and some vacuum systems which are insensitive to oil pollution.
 
Oil diffusion vacuum pump Working Principle:
 
The heater located at the bottom of the oil diffusion pump heats the pump oil at the bottom of the chamber. The vapor of the pump oil is injected into the wall of the cooling pump body at supersonic speed and at a specific angle through an injection system. The vapor of the pump oil is cooled to liquid on the inner wall of the pump body to flow back to the bottom of the cavity in the form of falling film.
 
Because of the vacuum of the front vacuum pump, the flow of oil vapor in the pump is always maintained in the diffusion pump.
 
Gas molecules from the high vacuum flange region enter the vapor flow of the diffusion pump, and a driving force is obtained along the direction of the vapor flow of the diffusion pump oil, which produces the effect of a pump.
 
In the process, gas molecules can diffuse into the pump oil. When the pump oil returns to the evaporation chamber, the pump oil passes through a high temperature zone, also known as the purification zone, so that the light gas molecules are separated from the pump oil and discharged to the primary vacuum pump.
 
The cap-type diaphragm integrated in the diffusion pump reduces the reverse flow of pump oil, and the diaphragm at the front vacuum interface greatly reduces the consumption of pump oil at high gas flux.
 
Oil diffusion vacuum pump Technical characteristics:
 
1. Diffusion pump flange size from DN40 to DN1000
 
2. Air or water cooling
 
3. High flow
 
4. Good pre-vacuum stability
 
5. Very low gas reflux
 
6. Continuous self-cleaning function of pump oil in purification zone

 

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

 

Item KT-600 KT-630 KT-800 KT-900 KT-1000 KT-1200 KT-1400 KT-1600
Ultimate pressure

 

(Pa)

5×10-5
Pumping Capacity (L/S) 17500 20000 30000 40000 50000 60000 90000 130000
Critical fore-pump pressure

 

(Pa)

40
Backflow rate

 

mg/(cm2·min)

≤3×10-2
Heating time

 

( min)

≤50 ≤60 ≤65 ≤70 ≤80 ≤90
Heating Power

 

(kw)

8~9 9~11 13-13.5 14-16 17-20 28-30 38-40 48-50
Electric Voltage

 

(AC)V

380
Pump Oil Model KS-3
Pump Oil Volume( L) 6~7 7~8 12~14 14-15 15-16 22 38 50
Cooling water consumption

 

(L/H)

800 850 1200 1350 1500 2600 3400 4300
Inlet dimension

 

( mm)

600 630 800 900 1000 1200 1400 1600
Outlet dimension

 

(mm)

150 160 200 200 300 300 320 320
Recommended forepump speed (L/s) 300 600 600 600 1200 1200 1200 2500
Dimension
(mm)
L(Length) 1145 1170 1520 1843 1990 2235 2556 2900
B(Width) 975 1010 1275 1283 1290 1750 1950 2100
H(Height) 1444 1275 1870 1950 2220 2465 2950 3355
Net weight (kg) 375 420 670 830 990 1500 2150 2500

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