Two-stage oil vacuum pumps

CONTACT

VAKUUM BOHEMIA s.r.o.
Lidická kolonie 47
586 01 Jihlava

Phone: +420 567 322 487
Service: +420 567 330 556

E-mail: info@vakuum-bohemia.cz

VAKUUM BOHEMIA offers repair and servicing of two-stage oil rotary vacuum pumps by Leybold, Busch, Rietschle, Edwards, and Varian Agilent.

Two-stage oil rotary vacuum pumps are used to generate a vacuum between 1mbar and 0.001 mbar. Two-stage flow-through vacuum pumps are used for dirty applications where it is not possible to use vacuum pumps with oil recirculation or in applications where deeper vacuum is required.

Operating principle of two-stage vacuum pumps

Two-stage rotary vane oil vacuum pumps operate similarly to two single-stage rotary vacuum pumps. Air is moved from one stage to the second stage. This leads to greater compression and the vacuum pump can achieve deeper vacuum. For flow-through oil vacuum pumps, the oil passes through the vacuum pump and does not return. That is why flow-through vacuum pumps can also handle corrosive gases.

Parameters of two-stage oil vacuum pumps:

flow: from 2 m³/h to 630 m³/h
motor power: from 0.37 kW to 15 kW
max. vacuum: 0.001 mbar or 0.5 mbar_(abs)

Advantages of two-stage oil vacuum pumps:

deeper vacuum from one vacuum pump
for flow-through vacuum pumps, resistance to corrosive gases and possibility for rinsing

Our services:

vacuum systems using two-stage oil rotary vacuum pumps
sale of vacuum pumps
sale of spare parts
sale of accessories
vacuum pump servicing
repair and overhaul of two-stage oil rotary vacuum pumps

Applications:

evacuation of diffusion vacuum pumps
evacuation of turbomolecular vacuum pumps
helium leak detectors
metal coating
chemical industry – flow-through two-stage vacuum pumps
pharmaceutical industry – flow-through two-stage vacuum pumps

Tables of Models

Model	Pumping speed [m3/h]	Max. vakuum [mbar]	Wattage [kW]	RPM	Weight [kg]	Size [(l x w x h) mm]
GVD 40	37	0,001	1,1	N/A	N/A	665 x 253 x 409
GVD 80	74	0,001	2,2	N/A	N/A	796 x 274 x 445
GVD 175	160	0,001	5,5	N/A	N/A	994 x 410 x 563
GVD 275	255	0,001	7,5	N/A	N/A	1088 x 415 x 565
Duo 1,6	1,2	0,003	0,075	1500	10	315 x 140 x 225
Duo 3	2,5	0,003	0,15	3000	11	310 x 130 x 225
Duo 6	5	0,03	0,15	3000	11	340 x 130 x 225
Duo 11	9	0,03	0,25	3000	15	415 x 145 x 225
Pascal 2005	5	0,0005	0,45	N/A	25	330 x 164 x 216
Pascal 2010	9	0,0005	0,45	N/A	26	350 x 164 x 216
Pascal 2015	14	0,0005	0,45	N/A	27	360 x 164 x 216
Pascal 2021	18	0,0005	0,45	N/A	28	390 x 164 x 216
Duo 35	32	0,003	1,1	1500	68	650 x 240 x 339
Duo 65	62	0,003	1,5	1500	70	725 x 250 x 350
Duo 125	115	0,004	4	1000	225	1166 x 396 x 530
Duo 255	250	0,004	7,5	1000	360	1500 x 470 x 750
E2M0,7	0,75	0,003	0,09	1400	10	325 x 150 x 225
E2M1,5	1,6	0,003	0,16	2800	10	325 x 150 x 225
E1M18	17	0,03	0,55	1400	37	518 x 170 x 260
E2M18	17	0,003	0,55	1400	39	518 x 170 x 260
E2M28	27,5	0,001	0,75	1400	44	600 x 180 x 260
E2M 40	37	0,001	1,1	N/A	N/A	665 x 253 x 409
E2M 80	74	0,001	2,2	N/A	N/A	796 x 274 x 445
E2M 175	160	0,001	5,5	N/A	N/A	994 x 410 x 563
E2M 275	255	0,001	7,5	N/A	N/A	1088 x 415 x 565
RV3	3,3	0,002	0,25	1450	25	430 x 160 x 230
RV5	5,1	0,002	0,25	1450	25	430 x 160 x 230
RV8	8,5	0,002	0,4	1450	28	470 x 160 x 230
RV12	12	0,002	0,4	1450	29	500 x 160 x 230
RE 2,5	2,3	0,3	0,18	1500	10	320 x 125 x 190
RZ 2,5	2,3	0,0004	0,18	1500	10	320 x 125 x 190
RE 6	5,7	0,1	0,3	1500	15	370 x 140 x 210
RZ 6	5,7	0,0004	0,3	1500	15	370 x 140 x 210
RE 9	8,9	0,1	0,37	1500	21	460 x 155 x 235
RZ 9	8,9	0,0004	0,3	1500	15	370 x 140 x 210
RC 6	5,9	0,0004	0,37	1500	25	510 x 310 x 230