D 2.5 E

Te c h n i c a l  D a ta

50 Hz

60 Hz

Nominal pumping speed

m3 x h-1 (cfm)

3.2  (1.9)

3.6 (2.1)

Pumping speed *

m3 x h-1 (cfm)

2.7 (1.6)

3.3 (1.9)

Ultimate partial pressure without gas ballast

mbar (Torr)

≤ 5 x 10-4 (≤ 3.8 x 10-4)

Ultimate total pressure without gas ballast **

mbar (Torr)

≤ 2 x 10-3 (≤ 1.5 x 10-3)

Ultimate total pressure with gas ballast

Step 2**

mbar (Torr)

≤ 3 x 10-2 (≤ 2.3 x 10-2)

Water vapor tolerance

Step 1

mbar (Torr)

10 (7.5)

Step 2

mbar (Torr)

20 (15)

Step 3

mbar (Torr)

30 (22.5)

Water vapor capacity

Step 1

gm/h

20

Step 2

gm/h

40

Step 3

gm/h

60

Oil filling, max./min.

l (qt)

0.7/0.4 (0.7/0.4 )

Noise level

dB(A)

≤ 47

Admissible ambient temperature

°C (°F)

10 to 50 (50 - 122) (EURO motor) / 10 to 40 (50 - 104) (USA/Japan motor)

Motor rating 50/60 Hz

W (HP)

250 (0.34)

300 (0.41)

Nominal speed 50/60 Hz

rpm

1400

1600

Type of protection

IP

54

Weight (with oil filling)

kg (lbs)

15.3 (33.7)

Dimensions (W x H x D)

mm (in.)

127 x 225 x 383 (5 x 8.86 x 15)

Connections (Intake and Exhaust)

DN

16 KF