VACUUBRAND SKF H 40 - Manual (Page 5)

Documents are only to be used and distributed completely and unchanged. It is strictly the users’ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999229 / 03/08/2009
page 5 of 7
Technical data
Cold trap SKF H 25 / SKF H 40
Connection to vacuum pump
small flange KF DN 25 (SKF H 25)
small flange KF DN 40 (SKF H 40)
Connection to recipient
small flange KF DN 25 (SKF H 25)
small flange KF DN 40 (SKF H 40)
Coolant
liquid nitrogen (LN
2
) or
acetone-dry ice (CO
2
) mixture
Coolant capacity approx. 1 l
Lifetime of coolant (for N
2
, p < 10 -3 mbar, ambient
temperature 20°C) approx.
12 h
Condensate capacity approx. 0.5 l
Maximum permissible range of operation pres-
sure
from vacuum up to 1.1 bar absolute
Permissible ambient temperature range +10°C to +40°C
Dimensions (L x W x H)
166mm x 140mm x 303mm (SKF H 25)
166mm x 140mm x 319mm (SKF H 40)
Weight approx.
3.9 kg (SKF H 25)
4.2 kg (SKF H 40)
Wetted parts
Components Wetted materials
Cold trap stainless steel
O-rings FPM / NBR