High Vacuum Pumps > Diffusion
The Edwards Diffstak vapour diffusion pumps are compact, water-cooled pumps with integral cooled baffles which provide exceptionally clean pumping.
Compact water-cooled diffusion pumps
From 135 (N2) to 3200 l/s (H2)
Integral high-vacuum valve fitted as standard. Manual or pneumatic valve options.
Integral cooled baffles offer exceptionally clean pumping with very low backstreaming
With thousands of pumps installed
Pumping speed (Nitrogen)
Pumping speed (Hydrogen)
Minimum backing pump displacement
Oil charge capacity
Heater power
l/s
l/s
m³/h
ml
W
63/150
M y P
135
200
5
60
450
63/150
C
150
225
5
60
450
100/300
M y P
280
500
5
125
650
100/300
C
150
225
5
60
450
160/700
M y P
700
1300
12
250
1350
160/700
C
760
1410
12
250
1350
250/2000
M y P
2000
3000
40
500
2250
250/2000
C
2130
3200
40
500
2250
The compact water-cooled Diffstak pumps with an integral cooled baffle offer exceptionally clean pumping with very low backstreaming, reduced outgassing, and a reduction in the number of elastomer seals required for installation.
This pump has a manually operated high vacuum isolation valve and is supplied with: NW10 elbow, NW10 centering-ring, NW10 clamp, water pipe couplings and ferrules, inlet ISO63 Co-Seal.
Product Features
NOOOOOTHREE PROVEN DESIGNS
they are supplied in three types: standard, manually operated (M-model pumps), standard pneumatically operated (P-model pumps) and unvalved (C-collar model pumps).
xxxxOIL FREE
ensures clean vacuum, low power and low vibration. the use of magnetic bearings eliminates all hydrocarbon lubricants.
VIBRATION FREE
magnetic levitation means no friction and thus extremely low vibration, in addition this remains constant and does not change as parts wear.
AUTOMATIC BALANCING SYSTEM
Edwards 5-axis pumps are able adjust the magnetic field dynamically to take out rotor imbalances.
MAINTENANCE FREE
zero friction means no wear and thus no routine maintenance is required in normal operation.
Diffstak Product Information